mohammad yacoub al shdaifat, rozli zulkifli, kamaruzzaman sopian, abeer adel salih.  (2023).  numerical simulation on heat transfer performance of a liquid cold plate for cooling of the electric vehicle battery.  - journal of advanced research in fluid mechanics and thermal sciences.  114-125. 

mohammad yacoub al shdaifat, rozli zulkifli, kamaruzzaman sopian, abeer adel salih.  (2023).  basics, properties, and thermal issues of ev battery and battery thermal management systems: comprehensive review.  - proceedings of the institution of mechanical engineers, part d: journal of automobile engineering.  295-311. 

izza anshory, jamaaluddin jamaaluddin, arasy fahruddin, ahmad fudholi, yadi radiansah, dalmasius ganjar subagio, yusuf suryo utomo, aep saepudin, oo abdul rosyid, kamaruzzaman sopian.  (2023).  monitoring solar heat intensity of dual axis solar tracker control system: new approach.  - case studies in thermal engineering.  1-8. 

camellia doroody, kazi sajedur rahman, puvaneswaran chelvanathan, mohd adib ibrahim, kamaruzzaman sopian, nowshad amin, shahariar chowdhury, sittiporn channumsin.  (2023).  incorporation of magnesium-doped zinc oxide (mzo) hrt layer in cadmium telluride (cdte) solar cells.  - results in physics.  1-8. 

abdulmunem r. abdulmunem, nassr f. hussein, pakharuddin mohd samin, kamaruzzaman sopian, hashim a. hussien, habibah ghazali.  (2023).  integration of recycled waste paper with phase change material in building enclosure.  - journal of energy storage.  1-12. 

abdulsahib m. bassam, kamaruzzaman sopian, adnan ibrahim, anwer b. al-aasam, mojtaba dayer.  (2023).  experimental analysis of photovoltaic thermal collector (pvt) with nano pcm and micro-fins tube counterclockwise twisted tape nanofluid.  - case studies in thermal engineering.  1-11. 

anwer. b. al-aasam, adnan ibrahim, kamaruzzaman sopian, bassam m. abdulsahib, mojtaba dayer.  (2023).  enhancing the performance of photovoltaic thermal solar collectors using twisted absorber tubes and nanofluids with optimal design parameters.  - international journal of renewable energy research.  1277-1284. 

md. ariful islam, md. akhtaruzzaman, m. mottakin, vidhya selvanathan, md. shahiduzzaman, m. n. i. khan, a. f. m. masum rabbani, m. j. rashid, mohd adib ibrahim, k. sopian & k. sobayel.  (2023).  potential induced performance degradation (pid) applied on a perovskite solar cell exploring its effect on cell performance through numerical simulation.  - journal of electronic materials.  2-8. 

muslizainun mustapha, nurul syakirah nazri, muhammad ibrahim ali zaini, nurul nazli rosli, wan mustafa wan sulong, ahmad fudholi, kamaruzzaman sopian.  (2023).  mathematical modeling and experimental validation of bifacial photovoltaic-thermal system with mirror reflector.  - case studies in thermal engineering.  1-13. 

miqdam t. chaichan, hussein a. kazem, moafaq k. s. al-ghezi, ali h. a. al-waeli, ali j. ali, kamaruzzaman sopian, abdul amir h. kadhum, wan nor roslam wan isahak, mohd s. takriff, ahmed a. al-amiery.  (2023).  optimizing mwcnt-based nanofluids for photovoltaic/thermal cooling through preparation parameters.  - acs omega.  29910-29925. 

abdulsahib m. bassam, kamaruzzaman sopian, adnan ibrahim, mohd faizal fauzan, anwer b. al-aasam, ghaith yahay abusaibaa.  (2023).  experimental analysis for the photovoltaic thermal collector (pvt) with nano pcm and micro-fins tube nanofluid.  - case studies in thermal engineering.  1-10. 

d.k. sarkar, m. mottakin, a.k mahmud hasan, v. selvanathan, k. sobayel, m.n.i. khan, a.f.m masum rabbani, m. shahinuzzaman, mohammod aminuzzaman, farah h. anuar, takashi suemasu, kamaruzzaman sopian, md. akhtaruzzaman.  (2023).  a comprehensive study on rbgei3 based inorganic perovskite solar cell using green synthesized cucro2 as hole conductor.  - journal of photochemistry & photobiology, a: chemistry.  1-13. 

husam abdulrasool hasan, jenan s. sherza, azher m. abed, hussein togun, nidhal ben khedher, kamaruzzaman sopian, jasim m. mahdi, pouyan talebizadehsardari.  (2023).  thermal and flow performance analysis of a concentrated linear fresnel solar collector with transverse ribs.  - frontiers in chemistry.  1-10. 

ali. f. muftah, kamaruzzaman sopian, adnan ibrahim, abdulnasser elbreki, azher m abed.  (2023).  design and evaluation of a modified basin- type stepped solar- still under malaysia climate conditions.  - energy sources, part a: recovery, utilization, and environmental effects.  6756-6771. 

miqdam t. chaichan, hussein a. kazem, ali h. a. al-waeli, kamaruzzaman sopian, mohammed a. fayad, wissam h. alawee, hayder a. dhahad, wan nor roslam wan isahak , ahmed a. al-amiery.  (2023).  sand and dust storms impact on the efficiency of the photovoltaic modules installed in baghdad: a review study with an empirical investigation.  - energies.  1-25. 

miqdam t. chaichan, hussein a. kazem, moafaq k. s. al-ghezi, ali h. a. al-waeli, ali j. ali, kamaruzzaman sopian, abdul amir h. kadhum, wan nor roslam wan isahak, mohd s. takriff, ahmed a. al-amiery.  (2023).  effect of different preparation parameters on the stability and thermal conductivity of mwcnt-based nanofluid used for photovoltaic/thermal cooling.  - sustainability.  1-24. 

nurul huda abdul razak, nowshad amin, kazi sajedur rahman, jagadeesh pasupuleti, md. akhtaruzzaman, kamaruzzaman sopian, munirah d. albaqami, ammar mohamed tighezza, zeid a. alothman, mika sillanp.  (2023).  influence of pulsed nd:yag laser oscillation energy on silicon wafer texturing for enhanced absorption in photovoltaic cells.  - results in physics.  1-10. 

ghaith yahya abusaiba, kamaruzzaman sopian, hasila jarimi, adnan ibrahim, saffa riffat.  (2023).  photovoltaic vapor compression air conditioning system with phase change material (pcm) storage tank.  - frontiers in heat and mass transfer.  1-6. 

m.m.s. dezfouli, a.r. dehghani-sanij, k. kadir, k. sopian.  (2023).  development and life cycle cost analysis of a solar hybrid hvac system for use in buildings in tropical climates.  - sustainable energy technologies and assessments.  1-17. 

jalal assadeg, kamaruzzaman sopian, adnan ibrahim, ahmad fudholi, ali h. a. alwaeli, ag sufiyan abd hamid.  (2023).  thermal and thermo-hydraulic performance of finned double-pass solar air collector utilizing cylindrical capsules nano-enhanced pcm.  - international journal of renewable energy research.  1-11. 

haris m. khalid, zimran rafique, s.m. muyeen, abdul raqeeb, zafar said, r.saidur, kamaruzzaman sopian.  (2023).  dust accumulation and aggregation on pv panels: an integrated survey on impacts, mathematical models, cleaning mechanisms, and possible sustainable solution.  - solar energy.  261-285. 

hussein a. kazem, ali h. a. al-waeli, miqdam t. chaichan, k. sopian, aslan gholami, waheeb e. alnaser.  (2023).  dust and cleaning impact on the performance of photovoltaic: an outdoor experimental study.  - energy sources, part a: recovery, utilization and environmental effects.  3107-3124. 

mir hamed hakemzadeh, adnan ibrahim, kamaruzzaman sopian, ag sufiyan abd hamid, hasila jarimi.  (2023).  incorporating theoretical and practical approaches to assess the amount of sunlight captured by a tilted surface in a tropical climate.  - heliyon.  1-20. 

ahmad rujhan mohd rais, zon fazlila mohd ahir, nurul aqidah mohd sinin, nur fairuz mohd rostan, suhaila sepeai, mohd adib ibrahim, kamaruzzaman sopian.  (2023).  non-destructive evaluation of toxic-less approach on emitter formation by water-based phosphoric acid for n-type silicon.  - silicon.  3091-3102. 

hoy-yen chan and kamaruzzaman sopian.  (2022).  transitioning to a high renewable net-zero power generation system in malaysia.  - philosophical transactions of the royal society series a. mathematical, physical, and engineering sciences.  1-16. 

emy zairah ahmad, kamaruzzaman sopian, adnan ibrahim, chin kim gan, mohd suffian ab razak.  (2022).  experimental investigation of passively cooled photovoltaic modules on the power output performance.  - international journal of power electronics and drive systems.  520-527. 

ahmad rujhan mohd rais, nurul aqidah mohd sinin, suhaila sepeai, mohd adib ibrahim, saleem h. zaidi, kamaruzzaman sopian.  (2022).  analysis of spectral transmission in si solar cell with pyramidal texturization by using pc3s simulation.  - silicon.  8981-8992. 

fahimul hoque, ruhizan m. yasin, kamaruzzaman sopian.  (2022).  revisiting education for sustainable development: methods to inspire secondary school students toward renewable energy.  - sustainability.  1-18. 

amar fahmi ismail, ag sufiyan abd hamid, adnan ibrahim , hasila jarimi, kamaruzzaman sopian.  (2022).  performance analysis of a double pass solar air thermal collector with porous media using lava rock.  - energies.  1-19. 

m.m.s.dezfouli, k.sopian, kushsairy kadir.  (2022).  energy and performance analysis of solar solid desiccant cooling systems for energy efficient buildings in tropical regions.  - energy conversion and management: x.  1-16. 

mohd farriz basar, nurul ashikin m rais, azhan ab rahman, wan azani mustafa, kamaruzzaman sopian, kaifui v. wong.  (2022).  optimization of reaction typed water turbine in very low head water resources for pico hydro.  - journal of advanced research in fluid mechanics and thermal sciences.  23-39. 

e.s. hossain, p. chelvanathan, b. bais, n. azmi, s.a. shahahmadi, y. yussof, k.sopian & n. amin.  (2022).  enhancement in structural and optical properties of copper tin sulphide (cts) thin films via sulphurization process.  - materials science in semiconductor processing.  1-5. 

hasila jarimi, ali hussein abdulzahra al-waeli, tajul rosli razak, mohd nazari abu bakar, ahmad fazlizan, adnan ibrahim, kamaruzzaman sopian.  (2022).  neural network modelling and performance estimation of dual-fluid photovoltaic thermal solar collectors in tropical climate conditions.  - renewable energy.  1009-1019. 

ahmed abdulmula, kamaruzzaman sopian, norasikin ahmad ludin, lim chin haw, abdelnaser elberki, fayez aldawi, hazim moria.  (2022).  micropower system optimization for the telecommunication towers based on various renewable energy sources.  - international journal of electrical and computer engineering.  1069-1076. 

nurul syakirah nazri, ahmad fudholi, masita mohammad, cuk supriyadi ali nandar, henny sudibyo, haznan abimanyu, kamaruzzaman sopian, mohd adib ibrahim.  (2022).  peningkatan kecekapan elektrik sistem suria hibrid fotovoltan termatermoelektrik (pvt-te) oleh kesan termoelektrik.  - sains malaysiana.  4111-4124. 

amin shahsavar, ali h.a. alwaeli, neda azimi, shirin rostami, kamaruzzaman sopian, muslum arici, patrice estell sandro nizeti, alibakhsh kasaeian, hafiz muhammad ali, zhenjun ma, masoud afrand.  (2022).  exergy studies in water-based and nanofluid-based photovoltaic/thermal collectors : status and prospects.  - renewable and sustainable energy reviews.  1-21. 

mahmoud jaber, ag sufiyan abd hamid, kamaruzzaman sopian, ahmad fazlizan, adnan ibrahim.  (2022).  prediction model for the performance of different pv modules using artificial neural networks.  - mdpi - applied sciences.  1-16. 

a.f.sharol, a.a.razak, z.a.a.majid, m.a.a.azmi, m.a.s.m.tarminzi, y.h.ming, z.a.zakaria, m.a.harun, a.fazlizan, k.sopian.  (2022).  effect of thermal energy storage material on the performance of double-pass solar air heater with cross-matrix absorber.  - journal of energy storage.  1-15. 

amer braik, kamaruzzaman sopian, hasila jarimi, ahmad fazlizan, ag sufiyan abd hamid, adnan ibrahim.  (2022).  geospatial analysis of photovoltaic plants potential in palestine using a gis-ahp-based technique.  - international journal of renewable energy research.  480-488. 

samiya mahjabin, mohammad ismail hossain, md. mahfuzul haque, m. s. bashar, m. s. jamal, md. shahiduzzaman, ghulam muhammad, kamaruzzaman sopian, md. akhtaruzzaman.  (2022).  sputtered wox thin film as the electron transport layer for efficient perovskite solar cells.  - applied physics a.  1-11. 

md. akhtaruzzaman, mohammad ismail hossain, mohammad aminul islam, md. shahiduzzaman, ghulam muhammad, a. k. mahmud hasan, yuen hong tsang, kamaruzzaman sopian.  (2022).  nanophotonic-structured front contact for high-performance perovskite solar cells.  - science china materials.  1727-1740. 

amer braik, asaad makhalfih, ag sufiyan abd hamid, kamaruzzaman sopian, adnan ibrahim.  (2022).  impact of photovoltaic grid-tied systems on national grid power factor in palestine.  - aims energy.  236-253. 

shirin rostami, ag sufiyan abd hamid, kamaruzzaman sopian, hasila jarimi, anwor bassim and adnan ibrahim.  (2022).  heat transfer analysis of the flat plate solar thermal collectors with elliptical and circular serpentine tubes.  - applied sciences.  1-16. 

amged al ezzi, miqdam t. chaichan, hasan s. majdi, ali h. a. al-waeli, hussein a. kazem, kamaruzzaman sopian, mohammed a. fayad, hayder a. dhahad, talal yusaf.  (2022).  nano-iron oxide-ethylene glycol-water nanofluid based photovoltaic thermal (pv/t) system with spiral flow absorber: an energy and exergy analysis.  - energies.  1-19. 

win eng ewe, ahmad fudholi, kamaruzzaman sopian, refat moshery, nilofar asim, wahidin nuriana, adnan ibrahim.  (2022).  thermo-electro-hydraulic analysis of jet impingement bifacial photovoltaic thermal (jibpvt) solar air collector.  - energy.  1-14. 

khan sobayel bin rafiq , m. mottakin, ghulam muhammad, kuaanan techato, kamaruzzaman sopian, md. akhtaruzzaman.  (2022).  sequential optimization of highly efficient all inorganic csgei3 perovskite solar cell by numerical simulation.  - japanese journal of applied physics.  1-9. 

wan nur adilah wan roshdan, hasila jarimi , ali h.a.al-waeli, omar ramadan, kamaruzzaman sopian.  (2022).  performance enhancement of double pass photovoltaic/thermal solar collector using asymmetric compound parabolic concentrator (pv/t-acpc) for façade application in different climates.  - case studies in thermal engineering.  1-18. 

hussein a. kazem, miqdam t. chaichan, kamaruzzaman sopian.  (2022).  design and experimental evaluation of a pv/t system cooled by advanced methods.  - international journal of energy research.  9684-9709. 

hussein a. kazem, jabar h. yousif, miqdam t. chaichan, ali h.a. al-waeli, k. sopian.  (2022).  long-term power forecasting using frnn and pca models for calculating output parameters in solar photovoltaic generation.  - heliyon.  1-12. 

e.z.ahmad, k.sopian, a.fazlizan, h.jarimi, a.ibrahim.  (2022).  outdoor performance evaluation of a novel photovoltaic heat sinks to enhance power conversion efficiency and temperature uniformity.  - case studies in thermal engineering.  1-11. 

ersan y. muslih, md. shahiduzzaman, md. akhtaruzzaman, mohammad ismail hossain , liangle wang, hend i. alkhammash, sami s. alharthi, masahiro nakano, makoto karakawa, mohammod aminuzzaman, lai-hock tey, kamaruzzaman sopian, jean-michel nunzi, tetsuya.  (2022).  reproducible perovskite solar cells using a simple solvent-mediated solgel synthesized niox hole transport layer.  - applied physics express.  1-5. 

nur fairuz rostan, siti nor fazlina abdul hamid, zon fazlila mohd ahir, mohd adib ibrahim, kamaruzzaman sopian, suhaila sepeai.  (2022).  morphological, optical and electrical analysis of ag polymer-nickel low temperature top electrode in silicon solar cell for tandem application.  - silicon.  12421-12435. 

hossein rahmanian-koushkaki, saeed rahmanian, mahbod moein-jahromi, kamaruzzaman sopian.  (2022).  performance evaluation of concentrated photovoltaics with phase change materials embedded metal foam-based heat sink using gradient strategy.  - international journal of energy research.  12290-12315. 

zairul azrul zakaria, zafri azran abdul majid, muhammadamin harun, ahmad faris ismail, sany izan ihsan, kamaruzzaman sopian, amir abdul razak, ahmad fadzil sharol.  (2022).  experimental investigation of integrated energy storage on thermal performance enhancement of evacuated glass-thermal absorber tube collector (egatc) for air heating application.  - journal of advanced research in fluid mechanics and thermal sciences.  137-152. 

azhari, a. w., eop, t. s., che halin, d. s., sopian, k., hashim, u, zaidi, s. h..  (2022).  annealing effects on polycrystalline silicon germanium (sige) thin films grown on nanostructured silicon substrates using thermal evaporation technique.  - international journal of nanoelectronics and materials.  303-318. 

hussein a.kazem, miqdam t.chaichan, ali h.a.al-waeli, k.sopian.  (2022).  effect of dust and cleaning methods on mono and polycrystalline solar photovoltaic performance: an indoor experimental study.  - solar energy.  626-643. 

husam abdulrasool hasan, jenan s. sherza, azher m. abed, hakim s. sultan, kamaruzzaman sopian.  (2022).  improve the performance of solar thermal collectors by varying the concentration and nanoparticles diameter of silicon dioxide.  - open engineering.  743-751. 

abdulmunem r. abdulmunem, pakharuddin mohd samin, kamaruzzaman sopian, siamak hoseinzadeh, hasanain a. al-jaber, davide astiaso garcia.  (2022).  waste chicken feathers integrated with phase change materials as new inner insulation envelope for buildings.  - journal of energy storage.  1-12. 

ghaith abusaibaa, kamaruzzaman sopian, rohaimi abdullah, hasila jarimi, adnan ibrahim.  (2022).  performance analysis of solar assisted heat pump drying system with dual condensers.  - journal of advanced research in fluid mechanics and thermal sciences.  134-148. 

md. mahfuzul haque, samiya mahjabin, sobayel khan, mohammad ismail hossain, ghulam muhammad, md. shahiduzzaman, kamaruzzaman sopian, md. akhtaruzzaman.  (2022).  study on the interface defects of eco-friendly perovskite solar cells.  - solar energy.  96-108. 

a. s najm, abdulwahab aljuhani, hasanain salah naeem, k. sopian, raid a. ismail,araa mebdir holi, laith s. sabri, asla abdullah alzahrani, rashed taleb rasheede and hazim moria.  (2022).  mechanism and principle of doping: realizing of silver incorporation in cds thin film via doping concentration effect.  - rsc advances.  29613-29626. 

mir hamed hakemzadeh, kamaruzzaman sopian, ahmad fazlizan abdullah, hasila jarimi, mohd faizal fauzan, adnan ibrahim.  (2022).  technoeconomics of solar thermal assisted sorption cooling systems under tropical climate condition a case of malaysia.  - energy conversion and management: x.  1-14. 

hussein a. kazem, miqdam t. chaichan ,ali h. a. al-waeli ,hasila jarimi ,adnan ibrahim, k. sopian.  (2022).  effect of temperature on the electrical and thermal behaviour of a photovoltaic thermal system cooled using sic nanofluid: an experimental and comparison study.  - sustainability.  1-19. 

azher m. abed, hasan sh. majdi, k. sopian, farooq h. ali, mohammed al bahrani, qusay rasheed alamir, asmaa k. yakoob.  (2022).  techno economic analysis of dual ejectors solar assisted combined absorption cooling cycle.  - case studies in thermal engineering.  1-12. 

asmaa soheil najm,hasanain salah naeem,duaa abdul rida musa alwarid,abdulwahab aljuhani,siti aishah hasbullah,hiba ali hasan,kamaruzzaman sopian, badariah bais,heidar j. al iessa,hasan sh. majdi,abbas j. sultan,hazim moria.  (2022).  mechanism of chemical bath deposition of cds thin films: influence of sulphur precursor concentration on microstructural and optoelectronic characterizations.  - coatings.  1-22. 

a.s. najm, hasanain salah naeem, hasan sh. majdi, siti aishah hasbullah, hiba ali hasan, k. sopian, badariah bais, heidar j.al iessa, hayder a. dhahad, jamal m. ali, abbas j. sultan.  (2022).  an in depth analysis of nucleation and growth mechanism of cds thin flm synthesized by chemical bath deposition (cbd) technique.  - scientific reports.  1-20. 

win eng ewe, ahmad fudholi, kamaruzzaman sopian, evgen solomin, mohammad hossein yazdi, nilofar asim, noshin fatima, ghalya pikra, henny sudibyo widya fatriasari, farief heru kuncoro, cuk supriyadi ali, nandar, haznan abimanyu.  (2022).  jet impingement cooling applications in solar energy technologies: systematic literature review.  - thermal science and engineering progress.  1-21. 

husam abdulrasool hasan, ali arif hatem, lamiaa abdulredh abd, azher m. abed, kamaruzzaman sopian.  (2022).  numerical investigation of nanofluids comprising different metal oxide nanoparticles for cooling concentration photovoltaic thermal cpvt.  - cleaner engineering and technology.  1-12. 

husam abdulrasool hasan, jenan s. sherza, lammiaa abdulrudah abd, kayser aziz ameen, azher m. abed, ali arif hatem, kamaruzzaman sopian.  (2022).  study the effect of flow water/al 2 o 3 nanofluid inside mini -channel for cooling concentrated multi -junction solar cell.  - frontiers in heat and mass transfer.  1-8. 

d.k sarkar, a.k. mahmud hasan, m. mottakin, vidhya selvanathan, k. sobayel, md. ariful islam, ghulam muhammad, mohammod aminuzzaman, md. shahiduzzaman, kamaruzzaman sopian, md. akhtaruzzaman.  (2022).  lead free efficient perovskite solar cell device optimization and defect study using mg doped cucro2 as htl and wo3 as etl.  - solar energy.  215-224. 

m.i. elsmani, n. fatima, i. torres, s. fernández, m. p. a. jallorina, p. chelvanathan, a. r. mohd rais, m. n. md daud, s. n. syed nasir, s. sepeai, n. ahmad ludin, m. a. mat teridi, k. sopian, m. a. ibrahim.  (2022).  raytracing modelling of infrared light management using molybdenum disulfide (mos2) as a back-reflector layer in a silicon heterojunction solar cell(shj).  - materials.  1-13. 

wisam a. abd al-wahidd, hussein awad kurdi saad, zahraa hamzah hasan, kamaruzzaman sopian.  (2022).  experimental study of the performance of hemispherical solar still with optimum value of rocks as heat transfer enhancers.  - aims energy.  885-889. 

muhammad amin harun, zafri azran abdul majid, zairul azrul zakaria, ahmad faris ismail, sany izan ihsan, kamaruzzaman sopian, amir abdul razak, ahmad fadzil sharol.  (2022).  performance analysis of flat plate base-thermal cell absorber (fpbtca): low thickness design.  - journal of advanced research in fluid mechanics and thermal sciences.  122-133. 

a. s. najm, hasanain salah naeem, khalid o. alabboodi, siti aishah hasbullah, hiba ali hasan, araa mebdir holi, asla abdullah al-zahrani, k. sopian, badariah bais, hasan sh. majdi, abbas j. sultan.  (2022).  new systematic study approach of green synthesis cds thin flm via salvia dye.  - scientific reports.  1-21. 

wan mustafa, ahmad fudholi, kamaruzzaman sopian, muslizainun mustapha, yoyon ahmudiarto.  (2021).  the water based photovoltaic thermal fiberglass collector: an experimental investigation.  - international journal of renewable energy research.  1663-1672. 

samiya mahjabin, md. mahfuzul haque, sobayel khan, vidhya selvanathan, m. s. jamal, m. s. bashar, hend i. alkhammash, mohammad ismail hossain, md. shahiduzzaman, nowshad amin, kamaruzzaman sopian, md. akhtaruzzaman.  (2021).  effects of oxygen concentration variation on the structural and optical properties of reactive sputtered wox thin film.  - solar energy.  202-211. 

ali h. a. al-waeli, hussein a. kazem, miqdam t. chaichan, k. sopian.  (2021).  a review of photovoltaic thermal systems: achievements and applications.  - international journal of energy research.  1269-1308. 

hassan ahmoum, puvaneswaran chelvanathan mohd sukor su'ait, mourad boughrara, guojian li, ralph gebauer, kamaruzzaman sopian, mohamed kerouad, nowshad amin qiang wang.  (2021).  sol-gel prepared cu2znsns4 (czts) semiconductor thin films: role of solvent removal processing temperature.  - materials science in semiconductor processing.  1-7. 

hasila jarimi, devrim aydin, mohd nazari abu bakar, adnan ibrahim, ahmad fazlizan, ahmad afif safwan and kamaruzzaman sopian.  (2021).  exergy based sustainability analysis of a dual fluid hybrid photovoltaic/thermal (pv/t) solar collector.  - international journal of exergy.  358-373. 

win eng ewe, ahmad fudholi, kamaruzzaman sopian, nilofar asim, yoyon ahmudiarto, agus salim.  (2021).  overview on recent pvt systems with jet impingement.  - international journal of heat and technology.  1951-1956. 

hussein a. kazem, ali h.a. al-waeli, miqdam t. chaichan, kamaruzzaman sopian.  (2021).  numerical and experimental evaluation of nanofluids based photovoltaic/thermal systems in oman: using silicone-carbide nanoparticles with water-ethylene glycol mixture.  - case studies in thermal engineering.  1-13. 

mohammad h. yazdi, evgeny solomin, ahmad fudholi, ghasem divandari, kamaruzzaman sopian, perk lin chong.  (2021).  thermal performance of nanofluid flow inside evacuated tube solar collector.  - international journal of heat and technology.  1262-1270. 

ahmad halal, kazi sajedur rahman, siti fazlili abdullah, kamaruzzaman sopian, nowshad amin.  (2021).  an investigation on cds1-xtex interface compound in cds/cdte hetero-junction solar cells by density functional theory (dft).  - superlattices and microstructures.  1-12. 

vidhya selvanathan, mohd hafidz ruslan, ammar ahmed nasser alkahtani, nowshad amin, kamaruzzaman sopian , ghulam muhammad, md akhtaruzzaman.  (2021).  organosoluble, esterified starch as quasi-solid biopolymer electrolyte in dye-sensitized solar cell.  - journal of materials research and technology.  1638-1648. 

muhd hatim rohaizar, suhaila sepeai, p. j. ker, n. a. ludin, m. a. ibrahim, k. sopian, saleem h. zaidi.  (2021).  influence of front surface single pulse laser drilling on a bifacial solar cell determined through simulation and experiment.  - optical and quantum electronics.  1-13. 

amanda halim, ahmad fudholi, kamarulzzaman sopian, stephen j. phillips.  (2021).  performance of hybrid solar photovoltaic diesel generator and battery storage design for rural electrification in malaysia.  - international journal of sustainable development and planning.  883-893. 

m.a.s.m.tarminzi, a.a.razak, m.a.a.azmi, a.fazlizan, z.a.a.majid, k.sopian.  (2021).  comparative study on thermal performance of cross-matrix absorber solar collector with series and parallel configurations.  - case studies in thermal engineering.  1-17. 

ft munna, vidhya selvanathan, k sobayel, ghulam muhammad, nilofar asim, nowshad amin, kamaruzzaman sopian, md akhtaruzzaman.  (2021).  diluted chemical bath deposition of cdzns as prospective buffer layer in cigs solar cell.  - ceramics international.  11003-11009. 

raheem kadhim ajeel, k. sopian, rozli zulkifli.  (2021).  thermal-hydraulic performance and design parameters in a curved-corrugated channel with l-shaped baffles and nanofluid.  - journal of energy storage.  1-24. 

raheem k. ajeel, rozli zulkifli, k. sopian, saba n. fayyadh, ahmad fazlizan , adnan ibrahim.  (2021).  numerical investigation of binary hybrid nanofluid in new configurations for curved-corrugated channel by thermal-hydraulic performance method.  - powder technology.  144-159. 

m.h. yazdi, e. solomin, a. fudholi, k. sopian, p.l. chong.  (2021).  numerical analysis of the performance of a hybrid solar chimney system with an integrated external thermal source.  - thermal science and engineering progress.  1-11. 

m. isah, k.s. rahman, c. doroody, m.n. harif, h.n. rosly, k. sopian, s.k. tiong, n. amin.  (2021).  design optimization of cdte/si tandem solar cell using different transparent conducting oxides as interconnecting layers.  - journal of alloys and compounds.  1-6. 

wong min jin karen, j.h. wong, zhipeng wang , nancy j. siambun, willey y.h. liew, w. k. muzammil, k. sopian, g.j.h. melvin.  (2021).  facile mild hydrothermal treatment for surface functionalization of carbonized sawdust.  - materials chemistry and physics.  1-8. 

asmaa soheil najm, puvaneswaran chelvanathan, sieh kiong tiong ,mohammad tanvirul ferdaous, seyed ahmad shahahmadi, yulisa yusoff, kamaruzzaman sopian, nowshad amin.  (2021).  numerical insights into the influence of electrical properties of n-cds buffer layer on the performance of slg/mo/p-absorber/n-cds/n-zno/ag configured thin film photovoltaic devices.  - coatings.  1-17. 

raheem k. ajeel, k. sopian, rozli zulkifli.  (2021).  a novel curved-corrugated channel model: thermal-hydraulic performance and design parameters with nanofluid.  - international communications in heat and mass transfer.  1-21. 

zeki ahmed darwish, kamaruzzaman sopian, ahmad fudholi.  (2021).  reduced output of photovoltaic modules due to different types of dust particles.  - journal of cleaner production.  1-16. 

fairuz suzana mohd chachuli, sohif mat, norasikin ahmad ludin, kamaruzzaman sopian.  (2021).  performance evaluation of renewable energy r&d activities in malaysia.  - renewable energy.  544-560. 

refat moshery, tan yong chai, kamaruzzaman sopian, ahmad fudholi , ali h. a. al-waeli.  (2021).  thermal performance of jet-impingement solar air heater with transverse ribs absorber plate.  - solar energy.  355-366. 

nilofar asim , marzieh badiei, mohammad torkashvand, masita mohammad , mohammad a. alghoul , shawkat s. gasaymeh, kamaruzzaman sopian.  (2021).  wastes from the petroleum industries as sustainable resource materials in construction sectors: opportunities, limitations, and directions.  - journal of cleaner production.  1-14. 

zairul azrul zakaria, zafri azran abdul majid, muhammad amin harun, ahmad faris ismail, sany izan ihsan, kamaruzzaman sopian, amir abdul razak, ahmad fadzil sharol.  (2021).  investigation on the thermal performance of evacuated glass-thermal absorber tube collector (egatc) for air heating application.  - journal of advanced research in fluid mechanics and thermal sciences.  48-64. 

ammar m. abdulateef, marek jaszczur, qusay hassan, r anish, hakeem niyas, kamaruzzaman sopian, jasim abdulateef.  (2021).  enhancing the melting of phase change material using a fins nanoparticle combination in a triplex tube heat exchanger.  - journal of energy storage.  1-14. 

hussein a. kazem, miqdam t chaichan, ali h.a. al-waeli, k sopian.  (2021).  comparison and evaluation of solar photovoltaic thermal system with hybrid collector: an experimental study.  - thermal science and engineering progress.  1-15. 

s. mohamadi, m.h. yazdi, e. solomin, a. fudholi, k. sopian, p.l. chong.  (2021).  heat transfer and entropy generation analysis of internal flow of nanorefrigerant with slip condition at wall.  - thermal science and engineering progress.  1-11. 

abshir ashour, taib iskandar mohamad, kamaruzzaman sopian, norasikin ahmad ludin, khaled alzahrani , adnan ibrahim.  (2021).  performance optimization of a photovoltaic-diesel hybrid power system for yanbu, saudi arabia.  - aims energy.  1260-1273. 

muhammad safwan asyraf ramli, suhaimi misha, nor faizah haminudin, mohd afzanizam mohd rosli, ahmad anas yusof, mohd farriz md basar, kamaruzzaman sopian, adnan ibrahim, ahmad fazlizan abdullah.  (2021).  review of desiccant in the drying and air-conditioning application.  - international journal of heat and technology.  1475-1482. 

hasrul nisham rosly, kazi sajedur rahman, siti fazlili abdullah, muhammad najib harif, camellia doroody, puvaneswaran chelvanathan, halina misran, kamaruzzaman sopian, nowshad amin.  (2021).  the role of deposition temperature in the photovoltaic properties of rf-sputtered cdse thin films.  - crystals.  1-13. 

sakhr m. sultan, m.z. abdullah, h.m. hussein, c.p. tso, k. sopian.  (2021).  modified methods for assessing photovoltaic solar thermal collectors.  - case studies in thermal engineering.  1-14. 

mohammad shah jamal, khan sobayel, halina misran, taskina nasrin, khaled althubeiti, hend i. alkhammash, md. shahiduzzaman, kamaruzzaman sopian, nowshad amin, md. akhtaruzzaman.  (2021).  effect of selective lateral chromium doping by rf magnetron sputtering on the structural, and opto-electrical properties of nickel oxide.  - applied science.  1-11. 

hassan ahmoum, mohd sukor su'ait, narges ataollahi, muhammad ubaidah syafiq mustaffa, mourad boughrara, puvaneswaran chelvanathan, kamaruzzaman sopian, guojian li, mohamed kerouad, paolo scardi, qiang wang.  (2021).  suppressing the secondary phases via n2 preheating of cu2znsns4 thin films with the addition of oleylamine and/or 1-dodecanethiol solvents.  - inorganic chemistry communications.  1-5. 

maam abdah, m. mokhtar, l. tiankhoon, k. sopian, na dzulkurnain, a. ahmad, y. sulaiman, f. bella, ms. su'ait.  (2021).  synthesis and electrochemical characterizations of poly(3,4-ethylenedioxythiophene/manganese oxide coated on porous carbon nanofibers as a potential anode for lithium-ion batteries.  - energy reports.  8677-8687. 

a.m.elbreki, f. muftah, k. sopian, h. jarimi, a. fazlizan, a. ibrahim.  (2021).  experimental and economic analysis of passive cooling pv module using fins and planar reflector.  - case studies in thermal engineering.  1-8. 

mohammed islam elsmani, noshin fatima, michael paul a. jallorina, suhaila sepeai, mohd sukor suait, norasikin ahmad ludin, mohd asri mat teridi, kamaruzzaman sopian, mohd adib ibrahim.  (2021).  recent issues and configuration factors in perovskite silicon tandem solar cells towards large scaling production.  - nanomaterials.  1-36. 

nurul aiman mhd safri, zalitazainuddin, mohd syahriman mohd azmi, idris zulkifle, ahmad fudholi,mohd hafidz ruslan,kamaruzzaman sopian..  (2021).  current status of solar-assisted greenhouse drying systems for drying industry (food materials and agricultural crops).  - trends in food science & technology.  633-657. 

nilofar asim, marzieh badiei, ahmad fudholi, halim razali, masita mohammad, nurul asma samsudin, md. akhtaruzzaman, nowshad amin, kamaruzzaman sopian.  (2021).  prospect of aerogels as desiccant materials: possibilities and challenges.  - journal of porous media.  49-56. 

o.r. alobaidi, p. chelvanathan, b. bais, k. sopian, m.a. alghoul, md. akhtaruzzaman, n. amin.  (2021).  vacuum annealed ga:zno (gzo) thin films for solar cell integrated transparent antenna application.  - materials letters.  1-5. 

s. rahmanian, m. moein-jahromi, h. rahmanian-koushkaki, k. sopian.  (2021).  performance investigation of inclined cpv system with composites of pcm, metal foam and nanoparticles.  - solar energy.  883-901. 

e.z. ahmad, a. fazlizan, h. jarimi, k. sopian, a. ibrahim.  (2021).  enhanced heat dissipation of truncated multi-level fin heat sink (mlfhs) in case of natural convection for photovoltaic cooling.  - case studies in thermal engineering.  1-12. 

m. mottakin, k. sobayel, dilip sarkar, hend alkhammash, sami alharthi, kuaanan techato, md. shahiduzzaman, nowshad amin , kamaruzzaman sopian, md. akhtaruzzaman.  (2021).  design and modelling of eco-friendly ch3nh3sni3-based perovskite solar cells with suitable transport layers.  - energies.  1-16. 

win eng ewe, ahmad fudholi, kamaruzzaman sopian, nilofar asim.  (2021).  modeling of bifacial photovoltaic-thermal (pvt) air heater with jet plate.  - international journal of heat and technology.  1117-1122. 

md.akhtaruzzaman, md.shahiduzzaman, vidhya selvanath, kamaruzzaman sopian, mohammad ismail hossain, nowshad amin, a.k. mahmudhasan.  (2021).  enhancing spectral response towards high-performance dye-sensitised solar cells by multiple dye approach: a comprehensive review.  - applied materials today.  1-38. 

raheem k. ajeel, k. sopian, rozli zulkifli, saba n. fayyadh, ali kareem hilo.  (2021).  assessment and analysis of binary hybrid nanofluid impact on new configurations for curved-corrugated channel.  - advanced powder technology.  3869-3884. 

j. assadeg, ali h.a. al-waeli, a. fudholi, k. sopian.  (2021).  energetic and exergetic analysis of a new double pass solar air collector with fins and phase change material.  - solar energy.  260-271. 

norhayati mat wajid, abdul murad zainal abidin, mirhamed hakemzadeh, hasila jarimi, ahmad fazlizan, mohd faizal fauzan, adnan ibrahim, ali h. a. al-waeli, kamaruzzaman sopian.  (2021).  solar adsorption air conditioning system - recent advances and its potential for cooling an office building in tropical climate.  - case studies in thermal engineering.  1-11. 

muhammad amin harun, zafri azran abdul majid, zairul azrul zakaria, ahmad faris ismail, sany izan ihsan, kamaruzzaman sopian, ahmad fadzil sharol, amir abdul razak.  (2021).  study on selection of a suitable material and the parameters for designing a portable flat plate base-thermal cell absorber (fpbtca).  - journal of advanced research in fluid mechanics and thermal sciences.  71-92. 

nilofar asim, marzieh badiei, kamaruzzaman sopian.  (2021).  review of the valorization options for the proper disposal of face masks during the covid-19 pandemic.  - environmental technology & innovation.  1-15. 

emy zairah ahmad, kamaruzzaman sopian, hasila jarimi, ahmad fazlizan, abdelnaser elbreki, ag sufiyan abd hamid, shirin rostami, adnan ibrahim.  (2021).  recent advances in passive cooling methods for photovoltaic (pv) performance enhancement.  - international journal of electrical and computer engineering.  146-154. 

miqdam t. chaichan, hussein a. kazem, ali h.a. al-waeli, k. sopian.  (2021).  controlling the melting and solidification points temperature of pcms on the performance and economic return of the water-cooled photovoltaic thermal system.  - solar energy.  1344-1357. 

marshahida mat yashim, muhammad hanif sainorudin, masita mohammad, ahmad fudholi, nilofar asim, halim razali, kamaruzzaman sopian.  (2021).  recent advances on lightweight aerogel as a porous receiver layer for solar thermal technology application.  - solar energy materials and solar cells.  1-22. 

puteri nor aznie fahsyar, norasikin ahmad ludin, noor fadhilah ramli, suhaila sepeai, mohd sukor suait, mohd adib ibrahim, mohd asri teridi, kamaruzzaman sopian.  (2021).  correlation of simulation and experiment for perovskite solar cells with mos2 hybrid htl structure.  - applied physics a-materials science & processing.  1-8. 

puteri nor aznie fahsyar, norasikin ahmad ludin, noor fadhilah ramli, mohamad firdaus mohamad noh, rozan mohamad yunus, suhaila sepeai, mohd adib ibrahim, mohd asri teridi, kamaruzzaman sopian.  (2021).  ambient fabrication of perovskite solar cells through delay deposition technique.  - materials for renewable and sustainable energy.  1-8. 

abshir m. ashour, taib iskandar mohamad, syed mohammad azeem, selvin p. thomas, yusuf a. aina, kamaruzzaman sopian, adnan ibrahim.  (2021).  deployment of rooftop solar photovoltaic electrification for residential buildings in an industrial city: a study on public perception and acceptance.  - international journal of renewable energy research.  945-951. 

norasikin ahmad ludin, nurfarhana alyssa ahmad affandi, kathleen purvis roberts , azah ahmad, mohd adib ibrahim, kamaruzzaman sopian, sufian jusoh.  (2021).  environmental impact and levelised cost of energy analysis of solar photovoltaic systems in selected asia pacific region: a cradle to grave approach.  - sustainability.  1-23. 

md. akhtaruzzaman, md. shahiduzzaman, nowshad amin, ghulam muhammad, mohammad aminul islam, khan sobayel bin rafiq, kamaruzzaman sopian.  (2021).  impact of ar flow rates on micro-structural properties of ws2 thin film by rf magnetron sputtering.  - nanomaterials.  1-16. 

mohammed. abd al -amir khadim, wisam a. abd al-wahid, dhafer m. hachima, kamaruzzaman sopian.  (2021).  experimental study of the performance of cylindrical solar still with a hemispherical dome.  - smart science.  30-39. 

m.yahya, r. hasibuan, r. sundari, k. sopian.  (2021).  experimental investigation of the performance of a solar dryer integrated with solid desiccant coloums using water based solar collector for medicinal herb.  - international journal of power electronics and drive system.  1024-1033. 

m. bassam abdulsahib, k. sopian, adnan ibrahim.  (2021).  photovoltaic thermal (pvt) with advanced tube design and working fluid - a review.  - international journal of renewable energy research.  600-617. 

kamaruzzaman sopian, ali h. a. al-waeli, hussein a. kazem.  (2021).  nano enhanced fluids and latent heat storage material for photovoltaic modules: a case study and parametric analysis.  - international journal of energy research.  12944-12967. 

a. r. m. rais , s. sepeai , m. k. m. desa , m. a. ibrahim , p. j. ker , s. h. zaidi , k. sopian.  (2021).  photo-generation profiles in deeply-etched, two-dimensional patterns in interdigitated back contact solar cells.  - journal of ovonic research.  283-289. 

ali sotoodeh, kamaruzzaman sopian, adnan ibrahim.  (2021).  experimental studies of drying pineapple with an active indirect solar tunnel dryer in malaysia.  - journal of advanced research in fluid mechanics and thermal sciences.  105-117. 

hussein a. kazem, miqdam t. chaichan, ali h.a. al-waeli, kamaruzzaman sopian.  (2021).  investigation of a nanofluid-based photovoltaic thermal system using single-wall carbon nanotubes: an experimental study.  - international journal of energy research.  10285-10303. 

saadah ahmad sowi, shahrir abdullah, kamaruzzaman sopian.  (2021).  the effect of linearly increasing/decreasing pitch ratio twisted tape with various progression rate and nanofluid towards the system performance.  - thermal science and engineering progress.  1-16. 

a. a. ammar, k. sopian, m. mohanraj.  (2021).  photovoltaic thermal collector assisted heat pumps using environment-friendly working fluids.  - proc imeche part e: journal of process mechanical engineering.  694-706. 

raheem k. ajeel,w. saiful-islam, k. sopian, m.z. yusoff.  (2020).  analysis of thermal-hydraulic performance and flow structures of nanofluids across various corrugated channels: an experimental and numerical study.  - thermal science and engineering progress.  1-17. 

ali h.a. al-waeli, hussein a. kazem , jabar h. yousif, miqdam t. chaichan, k. sopian.  (2020).  mathematical and neural network modeling for predicting and analyzing of nanofluid-nano pcm photovoltaic thermal systems performance.  - renewable energy.  963-980. 

muslizainun mustapha, ahmad fudholi, kamaruzzaman sopian.  (2020).  mathematical modelling of bifacial photovoltaic-thermal (bpvt) collector with mirror reflector.  - international journal of renewable energy research.  654-662. 

m. shahinuzzaman, zahira yaakob, farah hannan anuar, parul akhtar, n. h. a. kadir, a. k. mahmud hasan, k. sobayel, majid nour, hatem sindi, nowshad amin, k. sopian, md. akhtaruzzaman.  (2020).  in vitro antioxidant activity of ficus carica l. latex from 18 different cultivars.  - scientific reports.  1-14. 

nur farhana mohd razali, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2020).  improvement of photovoltaic module efficiency using spiral absorber and water.  - journal of advanced research in fluid mechanics and thermal sciences.  131-139. 

a. k. mahmud hasan, itaru raifuku, n. amin, yasuaki ishikawa, d. k. sarkar, k. sobayel, mohammad r. karim, anwar ul-hamid, h. abdullah, md. shahiduzzaman, yukiharu uraoka, kamaruzzaman sopian, md. akhtaruzzaman.  (2020).  air-stable perovskite photovoltaic cells with low temperature deposited niox as an efficient hole-transporting material.  - optical materials express.  1801-1816. 

k.sobayel, m.shahinuzzam, n.amin m.r.karime m.a.dare r.gul, m.a.alghoul, k.sopian, a.k.m.hasan, md.akhtaruzzaman.  (2020).  efficiency enhancement of cigs solar cell by ws2as window layer throughnumerical modelling tool.  - solar energy.  479-485. 

f.t.munna, p.chelvanathan, k.sobayel k.nurhafiza, d.k.sarkar, majid nour, hatem sindi, m.rawa, k. sopian, n.amin, md.akhtaruzzaman.  (2020).  effect of zinc doping on the optoelectronic properties of cadmium sulphide (cds) thin films deposited by chemical bath deposition by utilising an alternative sulphur precursor.  - optik.  1-9. 

hussein a. kazem, miqdam t. chaichan, ali h.a.alwaeli, k sopian.  (2020).  evaluation of aging and performance of grid connected photovoltaic system northern oman: seven years experimental study.  - solar energy.  1247-1258. 

nur farhana mohd razali, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2020).  electrical characteristics of photovoltaic thermal collector with water titania nanofluid flow.  - journal of advanced research in fluid mechanics and thermal sciences.  20-28. 

hussein a. kazem, miqdam t. chaichan, ali h.a. al-waeli, k. sopian.  (2020).  a review of dust accumulation and cleaning methods for solar photovoltaic systems.  - journal of cleaner production.  1-22. 

siti nor fazlina abdul hamid, nurul aqidah mohd sinin, zon fazlila mohd ahir, suhaila sepeai, kamaruzzaman sopian and saleem h zaidi.  (2020).  electrical investigation of ito films in al-doped crystalline silicon solar cells.  - materials research express.  1-8. 

nur fairuz rostan, suhaila sepeai, rozan mohamad yunus, norasikin ahmad ludin, mohd asri mat teridi, mohd adib ibrahim, kamaruzzaman sopian.  (2020).  optoelectronic and morphology properties of perovskite/silicon interface layer for tandem solar cell application.  - surface and interface analysis.  422-432. 

ahmad fudholi, nur farhana mohd razali, mohd hafidz ruslan, kamaruzzaman sopian.  (2020).  application of nanofluids for photovoltaic thermal (pvt) collectors: a review.  - journal of advanced research in fluid mechanics and thermal sciences.  35-44. 

md. shahariar chowdhury, kazi sajedur rahman, tanjia chowdhury, narissara nuthammachot, kuaanan techato, md. akhtaruzzaman, sieh kiong tiong, kamaruzzaman sopian, nowshad amin.  (2020).  an overview of solar photovoltaic panels end-of-life material recycling.  - energy strategy reviews.  1-11. 

vidhya selvanathan, mohd hafidz ruslan, mohammod aminuzzaman, ghulam muhammad, n. amin, kamaruzzaman sopian, md. akhtaruzzaman.  (2020).  resorcinol-formaldehyde (rf) as a novel plasticizer for starch-based solid biopolymer electrolyte.  - polymers.  1-14. 

saadah ahmad, shahrir abdullah and kamaruzzaman sopian.  (2020).  a review on the thermal performance of nanofluid inside circular tube with twisted tape inserts.  - advances in mechanical engineering.  1-26. 

a.m. elbreki, k. sopian, a. fazlizan, a. ibrahim.  (2020).  an innovative technique of passive cooling pv module using lapping fins and planner reflector.  - case studies in thermal engineering.  1-8. 

asmaa soheil najm, norasikin a. ludin, norul hisham hamid, mohd adib ibrahim, mohd asri mat teridi, kamaruzzaman sopian, hazim moria, araa mebdir holi, asla a. al-zahrani, hasanain salah naeem.  (2020).  effect of chenodeoxycholic acid on the performance of dye-sensitized solar cells utilizing pinang palm (areca catechu) dye.  - sains malaysiana.  3017-3028. 

saadah ahmad, shahrir abdullah and kamaruzzaman sopian.  (2020).  numerical and experimental analysis of the thermal performances of sic/water and al2o3/water nanofluid inside a circular tube with constant-increased-pr twisted tape.  - energies.  1-24. 

kamaruzzaman sopian, ali h.a. al-waeli, hussein a. kazem.  (2020).  energy, exergy and efficiency of four photovoltaic thermal collectors with different energy storage material.  - journal of energy storage.  1-10. 

mohammad yacoub al shdaifat, rozli zulkifli, kamaruzzaman sopian, abeer adel salih.  (2020).  thermal and hydraulic performance of cuo water nanofluids: a review.  - micromachines.  1-19. 

ahmed zayed al shaqsi, kamaruzzaman sopian, amr al-hinai.  (2020).  review of energy storage services, applications, limitations, and benefits.  - energy reports.  288-306. 

fairuz suzana mohd chachuli, norasikin ahmad ludin, sohif mat, kamaruzzaman sopian.  (2020).  renewable energy performance evaluation studies using the data envelopment analysis (dea): a systematic review.  - journal of renewable and sustainable energy.  1-15. 

vidhya selvanathan, rosiyah yahya, mohd hafidz ruslan, kamaruzzaman sopian, nowshad amin, majid nour, hatem sindi, muhyaddin rawa,md. akhtaruzzaman.  (2020).  organosoluble starch-cellulose binary polymer blend as a quasi-solid electrolyte in a dye-sensitized solar cell.  - polymer.  1-17. 

a. s. a. hamid, a. ibrahim, j. assadeg, e. z. ahmad, k. sopian.  (2020).  techno-economic analysis of a hybrid solar dryer with a vacuum tube collector for hibiscus cannabinus l fiber.  - international journal of renewable energy research.  1608-1613. 

h.ahmoum, p.chelvanathan, m.s.su'ait, m.boughrara, g.li, ali h.a.al-waeli, k.sopian, m.kerouad, n.amin.  (2020).  impact of preheating environment on microstructural and optoelectronic properties of cu2znsns4 (czts) thin films deposited by spin-coating.  - superlattices and microstructures.  1-8. 

s. s. s. baljit, h. y. chan, s. h. zaidi, k. sopian.  (2020).  performance study of a dual-fluid photovoltaic thermal collector with reflection and refraction solar concentrators.  - international journal of low-carbon technologies.  25-39. 

hussein a. kazem, miqdam t. chaichan, ali h.a. al-waeli, k. sopian.  (2020).  a novel model and experimental validation of dust impact on grid-connected photovoltaic system performance in northern oman.  - solar energy.  564-578. 

zainab saberi, ahmad fudholi, noorlina mohd zainuddin, zahari ibarahim, kamaruzzaman sopian.  (2020).  thermal performance of an absorber rod type solar air collector with single-path design.  - journal of advanced research in fluid mechanics and thermal sciences.  1-12. 

zainab saberi, ahmad fudholi, kamaruzzaman sopian.  (2020).  fitting of weibull distribution method to analysis wind energy potential at kuala terengganu, malaysia.  - journal of advanced research in fluid mechanics and thermal sciences.  13-22. 

samiya mahjabin, md. mahfuzul haque, k. sobayel, m. s. jamal, m. a. islam, v. selvanathan, abdulaziz k. assaifan, hamad f. alharbi, k. sopian, n. amin, md. akhtaruzzaman.  (2020).  perceiving of defect tolerance in perovskite absorber layer for efficient perovskite solar cell.  - ieee access.  10634-10653. 

ali h.a.al-waeli, kamaruzzaman sopian, hussein a. kazema, miqdam t. chaichan.  (2020).  evaluation of the electrical performance of a photovoltaic thermal system using nano-enhanced paraffin and nanofluids.  - case studies in thermal engineering.  1-8. 

n. azmi, p. chelvanathan, y. yusoff, s.a. shahahmadi, s.k. tiong, k. sopian, n. amin.  (2020).  a comprehensive study on the effects of alternative sulphur precursor on the material properties of chemical bath deposited cds thin films.  - ceramics international.  18716-18724. 

amin shahsavar, hossein moayedi, ali h. a. al-waeli, kamaruzzaman sopian, puvaneswaran chelvanathan.  (2020).  machine learning predictive models for optimal design of building-integrated photovoltaic-thermal collectors.  - international journal of energy research.  5675-5695. 

a. k. mahmud hasan, k. sobayel, itaru raifuku, yasuaki ishikawa, md. shahiduzzaman, majid nour, hatem sindi, k. sopian, n. amin, md. akhtaruzzaman.  (2020).  optoelectronic properties of electron beam-deposited niox thin films for solar cell application.  - results in physics.  1-9. 

nilofar asim, mohamad hassan amin, nurul asma samsudin, marzieh badiei, halim razali, md akhtaruzzaman, nowshad amin, kamaruzzaman sopian.  (2020).  development of effective and sustainable adsorbent biomaterial from an agricultural waste material: cu(ii) removal.  - materials chemistry and physics.  1-11. 

kamaruzzaman sopian, ali h a alwaeli, hussein a kazem.  (2020).  advanced photovoltaic thermal collectors.  - journal of process mechanical engineering.  206-213. 

mir hamed hakemzadeh, aghil shavalipour, kamaruzzaman sopian, saleem h. zaidi.  (2020).  an investigation of modelling diffuse solar radiation under tropical climatic conditions.  - international journal of renewable energy research.  499-511. 

ghaith yahay abusaibaa, anwer basim al-aasam, ali h a al-waeli, ali wadi abbas al-fatlawi, kamaruzzaman bin sopian.  (2020).  performance analysis of solar absorption cooling systems in iraq.  - international journal of renewable energy research.  223-230. 

j. assadeg, ali h. a. alwaeli, k. sopian, h. moria, a. s. a. hamid, a. fudholi.  (2020).  solar assisted heat pump system for high quality drying applications: a critical review.  - international journal of renewable energy research.  303-316. 

muhammad aslam mohd safari, nurulkamal masseran, alias jedi, sohif mat, kamaruzzaman sopian, azman bin abdul rahim, azami zaharim.  (2020).  rural public acceptance of wind and solar energy: a case studyfrom mersing, malaysia.  - energies.  1-24. 

ammar m. abdulateef, jasim abdulateef, kamaruzzaman sopian, sohif mat, adnan ibrahim.  (2019).  optimal fin parameters used for enhancing the melting and solidification of phase-change material in a heat exchanger unite.  - case studies in thermal engineering.  1-12. 

ahmad fudholi, nur farhana mohd razali, mohammad h.yazdi, adnan ibrahim, mohd hafidz ruslan, mohd yusof othman, kamaruzzaman sopian.  (2019).  tio2/water-based photovoltaic thermal (pvt) collector: novel theoretical approach.  - energy.  305-314. 

ahmad fudholi, mariyam fazleena musthafa, abrar ridwan, rado yendra, ari pani desvina, rahmadeni, tri suyono, kamaruzzaman sopian.  (2019).  energy and exergy analysis of air based photovoltaic thermal (pvt) collector: a review.  - international journal of electrical and computer engineering (ijece).  109-117. 

ali h.a. al-waeli, miqdam t. chaichan, k. sopian, hussein a. kazem, hameed b. mahood, anees a. khadom.  (2019).  modeling and experimental validation of a pvt system using nanofluid coolant and nano-pcm.  - solar energy.  178-191. 

nur farhana mohd razali, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2019).  experiment study of water based photovoltaic-thermal (pv/t) collector.  - international journal of electrical and computer engineering (ijece).  118-125. 

ahmad fudholi, mariyam fazleena musthafa, abrar ridwan, rado yendra, hartono, ari pani desvina, majid khan bin majahar ali, kamaruzzaman sopian.  (2019).  review of solar photovoltaic/thermal (pv/t) air collector.  - international journal of electrical and computer engineering (ijece).  126-133. 

ahmad fudholi, kamaruzzaman sopian.  (2019).  a review of solar air flat plate collector for drying application.  - renewable and sustainable energy reviews.  . 

k. sopian, ali h. a. alwaeli, hussein a. kazem.  (2019).  novel designs of photovoltaic thermal (pv/t) systems.  - international journal of recent technology and engineering.  6223-6229. 

ahmed mohamed abdulmula, kamaruzzaman sopian, lim chin haw, ahmad fazlizan.  (2019).  performance evaluation of standalone double axis solar tracking system with maximum light detection mld for telecommunication towers in malaysia.  - international journal of power electronics and drive system (ijpeds).  . 

m.mohanraj, p.chandramohan, m.sakthivel, kamaruzzaman sopian.  (2019).  performance of photovoltaic water pumping systems under the influence of panel cooling.  - renewable energy focus.  31-44. 

muhd hatim rohaizar, suhaila sepeai, nurfarizza surhada, n.a. ludin, m.a. ibrahim, k. sopian, saleem h. zaidi.  (2019).  light transmission and internal scattering in pulsed laser-etched partially-transparent silicon wafers.  - heliyon.  1-9. 

ali h.a. alwaeli, hussein a. kazem, jabar h. yousif, miqdam t. chaichan, kamaruzzaman sopian.  (2019).  mathematical and neural network models for predicting the electrical performance of a pvt system.  - international journal of energy research.  8100-8171. 

norasikin ahmad ludin mirratul mukminah junedi nurfarhana alyssa ahmad affandi mohd adib ibrahim kamaruzzaman sopian mohd asri mat teridi suhaila sepeai mohd sukor suait, lim chin haw.  (2019).  energy efficiency action plan for a public hospital in malaysia.  - alam cipta: international journal of sustainable tropical design research and practice.  73-79. 

samir mahmmod ahmad, cheow siu leong, richard w. winder, k. sopian, saleem h. zaidi.  (2019).  electrical, morphological, and compositional characterization of screen-printed al contacts annealed in horizontal and vertical configurations.  - journal of electronic materials.  6382-6396. 

ali h.a. al-waeli, kamaruzzaman sopian, hussein a. kazem, miqdam t. chaichan.  (2019).  novel criteria for assessing pv/t solar energy production.  - case studies in thermal engineering.  1-8. 

raheem k. ajeel, w.s.i. salim , k. sopian, m.z. yusoff, khalid hasnan, adnan ibrahim ali, h.a. alwaeli.  (2019).  turbulent convective heat transfer of silica oxide nanofluid through corrugated channels: an experimental and numerical study.  - international journal of heat and mass transfer.  1-15. 

ahmad fudholi, muslizainun mustapha, ivan taslim, fitrotun aliyah, arthur gani koto, kamaruzzaman sopian.  (2019).  photovoltaic thermal (pvt) air collector with monofacial and bifacial solar cells: a review.  - international journal of power electronics and drive systems.  2021-2028. 

naser g.a. khrit, kamaruzzaman sopian, mohammad alghoul, lim chin haw, nik lukman nik ibrahim, abdelnaser muftah a. elbreki.  (2019).  comparison of measured and modelled mean radiant temperature in the tropical urban environment.  - alam cipta: international journal of sustainable tropical design research and practice.  35-42. 

m.s jamal, s.a. shahahmadi, p. chelvanathana, hamad f. alharbid, mohammad r. karim, mushtaq ahmad dar, monis luqman, nabeel h. alharthi, yahya s. al-harthi, m. aminuzzaman, nilofar asim, k. sopian, s.k. tiong, nowshad amin, md. akhtaruzzaman.  (2019).  effects of growth temperature on the photovoltaic properties of rf sputtered undoped nio thin films.  - results in physics.  1-7. 

nur farhana mohd razali, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2019).  review of water-nanofluid based photovoltaic/thermal (pv/t) systems.  - international journal of electrical and computer engineering (ijece).  . 

nur farhana mohd razali, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2019).  electrical characteristic of photovoltaic thermal collector with water-multiwalled carbon nanotube nanofluid flow.  - indonesian journal of electrical engineering and computer science.  . 

a.a. lahimer, k. sopian, a.a. razak, m.h. ruslan. a. alghoul.  (2019).  experimental investigation on the performance of solar chimney for reduction of vehicle cabin soak temperature.  - applied thermal engineering.  247-260. 

nilofar asim, mohamad hassan amin, m.a. alghoul, marzieh badiei, masita mohammad, shawkat s. gasaymeh, nowshad amin, kamaruzzaman sopian.  (2019).  key factors of desiccant-based cooling systems: materials.  - applied thermal engineering.  1-9. 

jalal assadeg, kamaruzzaman sopian, ahmad fudholi.  (2019).  performance of grid-connected solar photovoltaic power plants in the middle east and north africa.  - international journal of electrical and computer engineering.  3375-3383. 

ammar m. abdulateef, abduljalil a. al-abidi, kamaruzzaman sopian, sohif mat, mustafa s. mahdi.  (2019).  a combination of fins-nanoparticle for enhancing the discharging of phasechange material used for liquid desiccant air conditioning unite.  - journal of energy storage.  1-12. 

ahmad fazlizan, ahmed abdulmula, akmal naim amran, chin haw lim and kamaruzzaman sopian.  (2019).  performance evaluation of maximum light detection solar tracking system in the tropics.  - journal of mechanical science and technology.  . 

masoud afrand, amin shahsavar, pouyan talebizadeh sardari, kamaruzzaman sopian, hamzeh salehipour.  (2019).  energy and exergy analysis of two novel hybrid solar photovoltaic geothermal energy systems incorporating a building integrated photovoltaic thermal system and an earth air heat exchanger system.  - solar energy.  83-95. 

nur ifthitah mustafa, norasikin ahmad ludin, norani muti mohamed, mohd adib ibrahim, mohd asri mat teridi, suhaila sepeai, azami zaharim, kamaruzzaman sopian.  (2019).  environmental performance of window-integrated systems using dye sensitised solar module technology in malaysia.  - solar energy.  379-392. 

nurul shahirah binti rukman, ahmad fudholi, ivan taslim, merita ayu indrianti, intan noviantari manyoe, uce lestari, kamaruzzaman sopian.  (2019).  electrical and thermal efficiency of air-based photovoltaic thermal (pvt) systems: an overview.  - indonesian journal of electrical engineering and computer science.  1134-1140. 

nurul shahirah binti rukman, ahmad fudholi, ivan taslim, merita ayu indrianti, intan noviantari manyoe, uce lestari, kamaruzzaman sopian.  (2019).  energy and exergy efficiency of water-based photovoltaic thermal (pvt) systems: an overview.  - international journal of power electronics and drive system.  987-994. 

muhammad yahya zulakmal, ahmad fudholi, nurul shahirah rukman, nurul syakirah nazri, chan hoy yen, nilofar asim, sohif mat, kamaruzzaman sopian.  (2019).  computational fluid dynamics analysis of thermoelectric generators performance under solar photovoltaic-thermal (pvt) system.  - journal of advanced research in fluid mechanics and thermal sciences.  223-232. 

nurul syakirah nazri, ahmad fudholi, wan mustafa, chan hoy yen, masita mohammad, mohd hafidz ruslan, kamaruzzaman sopian.  (2019).  exergy and improvement potential of hybrid photovoltaic thermal/thermoelectric (pvt/te) air collector.  - renewable and sustainable energy reviews.  132-144. 

m.t. ferdaous, s.a. shahahmadi, p. chelvanathan, md. akhtaruzzaman, f.h. alharbid, k. sopian, s.k. tiong, n. amin.  (2019).  elucidating the role of interfacial mos2 layer in cu2znsns4 thin film solar cells by numerical analysis.  - solar energy.  . 

nilofar asim, mohammad alghoul, masita mohammad, mohamad hassan amin, m.akhtaruzzaman, nowshad amin, kamaruzzaman sopian.  (2019).  emerging sustainable solutions for depollution: geopolymers.  - construction and building materials.  . 

ejarder sabbir hossain, puvaneswaran chelvanathan, seyed ahmad shahahmadi, badariah bais, md. akhtaruzzaman, sieh kiong tiong, kamaruzzaman sopian, nowshad amin.  (2019).  fabrication of cu2sns3 thin film solar cells by sulphurization of sequentially sputtered sn/cusn metallic stacked precursors.  - solar energy.  . 

ahmad fudholi, muhammad zohri, nurul shahirah binti rukman, nurul syakirah nazri, muslizainun mustapha, chan hoy yen, masita mohammad, kamaruzzaman sopian.  (2019).  exergy and sustainability index of photovoltaic thermal (pvt) air collector: a theoretical and experimental study.  - renewable and sustainable energy reviews.  . 

nurul nazli rosli, mohd adib ibrahim, norasikin ahmad ludin, mohd asri mat teridi, kamaruzzaman sopian.  (2019).  a review of graphene based transparent conducting films for use in solar photovoltaic applications.  - renewable and sustainable energy reviews.  . 

kamaruzzaman sopian, ali h. a. alwaeli, ali najah al-shamani, a. m. elbreki.  (2019).  thermodynamic analysis of new concepts for enhancing cooling of pv panels for grid-connected pv systems.  - journal of thermal analysis and calorimetry.  . 

ammar, a.a., sopian, k., alghoul, m.a., elhub, b., elbreki, a.m..  (2019).  performance study on photovoltaic/thermal solar-assisted heat pump system.  - journal of thermal analysis and calorimetry.  . 

m.s. jamal, s.a. shahahmadi, mohd. aizat abdul wadi, p. chelvanathan, n. asim, h. misran, m.i. hossain, n. amin, k. sopian, md. akhtaruzzaman.  (2019).  effect of defect density and energy level mismatch on the performance of perovskite solar cells by numerical simulation.  - optik - international journal for light and electron optics.  1204-1210. 

ali h.a. al-waeli, hussein a. kazem, miqdam t. chaichanc,k. sopian.  (2019).  experimental investigation of using nano-pcm/nanofluid on a photovoltaic thermal system (pvt): technical and economic study.  - thermal science and engineering progress.  . 

ali h.a. alwaeli, k. sopian, jabar h. yousif, hussein a. kazem, john boland, miqdam t. chaichan.  (2019).  artificial neural network modeling and analysis of photovoltaic thermal system based on the experimental study.  - energy conversion and management.  . 

win eng ewe, ahmad fudholi, kamaruzzaman sopian, nilofar asim.  (2019).  evaluation of solar air collector-thermoelectric hybrid system.  - journal of advanced research in fluid mechanics and thermal sciences.  142-147. 

ag sufiyan abd hamid, adnan ibrahim, sohif mat, kamaruzzaman sopian.  (2019).  experimental evaluation on large scale solar dryer for drying natural fiber in malaysia.  - international journal of renewable energy research.  598-604. 

wen-tong chong, wan khairul muzammil, hwai-chyuan ong, kamaruzzaman sopian, mohammed gwani, ahmad fazlizan, sin-chew poh.  (2019).  performance analysis of the deflector integrated cross axis wind turbine.  - renewable energy.  675-690. 

ali h.a. al-waeli, miqdam t. chaichan, k. sopian, hussein a. kazem.  (2019).  influence of the base fluid on the thermo-physical properties of pv/ t nanofluids with surfactant.  - case studies in thermal engineering.  1-8. 

ali h.a. al-waeli, miqdam t. chaichan, hussein a. kazem, k. sopian.  (2019).  evaluation and analysis of nanofluid and surfactant impact on photovoltaic-thermal systems.  - case studies in thermal engineering.  1-11. 

a.a. razak, z.a.a. majid, f. basrawi, a.f. sharol, m.h. ruslan, k. sopian.  (2019).  a performance and technoeconomic study of different geometrical designs of compact single-pass cross-matrix solar air collector with square-tube absorbers.  - solar energy.  314-330. 

ahmad fudholi, lim chin haw , kamaruzzaman sopian, ahmed mohamed omer abdulmula.  (2018).  a primary study of tracking photovoltaic system for mobile station in malaysia.  - international journal of power electronics and drive system.  427-432. 

n. n. rosli, m. a. ibrahim, m. a. mat teridi, n. ahmad ludin and k. sopian.  (2018).  optical and electrical properties of cu-based thin films by aerosol assisted chemical vapor deposition.  - asm science journal.  . 

suhaimi misha, sohif mat, mohd hafidz ruslan, elias salleh, kamaruzzaman sopian.  (2018).  a study of drying uniformity in a new design of tray dryer.  - journal of advanced research in fluid mechanics and thermal sciences.  . 

idris zulkifle, mohd hafidz hj ruslan, mohd. yusof hj othman, zahari ibarahim, kamaruzzaman sopian.  (2018).  pengeringan asam gelugur (garcinia atroviridis) menggunakan sistem pengering suria.  - jurnal teknologi (sciences & engineering).  . 

idris zulkifle , mohd hafidz ruslan, mohd. yusof hj othman, zahari ibarahim , kamaruzzaman sopian.  (2018).  the v-groove solar collector performance using fresnel lens and glass glazing.  - journal of engineering and applied sciences.  . 

mohd afzanizam mohd rosli, yap joon ping, suhaimi misha, mohd zaid akop, kamaruzzaman sopian, sohif mat, ali najah al-shamani, muhammad asraf saruni.  (2018).  simulation study of computational fluid dynamics on photovoltaic thermal water collector with different designs of absorber tube.  - journal of advanced research in fluid mechanics and thermal sciences.  . 

baljit singh sarban singh, chan hoy yen, saleem hussain zaidi, kamaruzzaman sopian.  (2018).  part ii: enhanced performance of concentrating photovoltaic- thermal air collector with fresnel lens and compound parabolic concentrator (cpc).  - journal of advanced research in fluid mechanics and thermal sciences.  . 

ahmad fudholi, kamaruzzaman sopian.  (2018).  review on solar collector for agricultural produce.  - international journal of power electronics and drive system (ijpeds).  414-419. 

shuhib mamat, mohamad faizzi, mohd sukor su'ait, norasikin ahmad ludin, kamaruzzaman sopian, nurul akmaliah dzulkarnain, azizan ahmad, loh kee shyuan, lee tian khoon & daniel brandell.  (2018).  kajian elektrolit polimer berasaskan getah asli terubah suai (mg49) dalam sel suria terpeka pewarna.  - sains malaysiana.  . 

nurul shahirah binti rukman, ahmad fudholi, saleem h. zaidi, kamaruzzaman sopian.  (2018).  overview of bifluid-based photovoltaic thermal (pvt) systems.  - international journal of power electronics and drive system (ijpeds).  . 

ahmad fudholi, abrar ridwan, rado yendra, ari pani desvina, hartono, majid khan bin majahar ali, tri suyono, kamaruzzaman sopian.  (2018).  solar drying technology in indonesia: an overview.  - international journal of power electronics and drive system (ijpeds).  . 

ahmad fudholi, nur farhana mohd razali, abrar ridwan, rado yendra, hartono, ari pani desvina, majid khan bin majahar ali, kamaruzzaman sopian.  (2018).  overview of photovoltaic thermal (pvt) water collector.  - international journal of power electronics and drive system (ijpeds).  . 

ahmad fudholi, kamaruzzaman sopian.  (2018).  review on exergy and energy analysis of solar air heater.  - international journal of power electronics and drive system (ijpeds).  420-426. 

m.yahya, hendriwan fahmi, ahmad fudholi, kamaruzzaman sopian.  (2018).  performance and economic analyses on solar-assisted heat pump fluidised bed dryer integrated with biomass furnace for rice drying.  - solar energy.  . 

ahmad fudholi, muhammad zohri, goh li jin, adnan ibrahim, chan hoy yen, mohd yusof othman, mohd hafidz ruslan & kamaruzzaman sopian.  (2018).  energy and exergy analyses of photovoltaic thermal collector with v-groove.  - solar energy.  742-750. 

m.s. jamala, m.s. bashar, a.k. mahmud hasan, zeyad a. almutairi, hamad f. alharbi, nabeel h. alharthi, mohammad r. karim, h. misran, nowshad amin, kamaruzzaman bin sopian, md. akhtaruzzaman.  (2018).  fabrication techniques and morphological analysis of perovskite absorber layer for high-efficiency perovskite solar cell: a review.  - renewable and sustainable energy reviews.  . 

samir mahmmod ahmad, cheow siu leong, richard w. winder, k. sopian & saleem h. zaidi.  (2018).  a phenomenological model of the screen printed, silver paste contact to si substrate.  - journal of electronic materials.  . 

ammar m. abdulateef, sohif mat, jasim abdulateef, kamaruzzaman sopian, abduljalil a. al-abidia.  (2018).  geometric and design parameters of fins employed for enhancing thermal energy storage systems: a review.  - renewable and sustainable energy reviews.  1620-1635. 

adnan ibrahim, sohif mat, ahmad fazlizan abdullah, ahmad fudholi, kamaruzzaman sopian.  (2018).  outdoor performance evaluation of building integrated photovoltaic thermal (bipvt) solar collector with spiral flow absorber configurations.  - international journal of power electronics and drive systems (ijpeds).  . 

nurul syakirah nazri, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2018).  experimental study of photovoltaic thermal-thermoelectric (pvt-te) air collector.  - international journal of power electronics and drive system (ijpeds).  . 

muslizainun mustapha, ahmad fudholi, chan hoy yen, mohd hafidz ruslan, kamaruzzaman sopian.  (2018).  review on energy and exergy analysis of air and water based photovoltaic thermal (pvt) collector.  - international journal of power electronics and drive system (ijpeds).  . 

amanda halim, ahmad fudholi, stephen phillips, kamaruzzaman sopian.  (2018).  review on optimised configuration of hybrid solar-pv diesel system for off-grid rural electrification.  - international journal of power electronics and drive system (ijpeds).  . 

norasikin ahmad ludin, nur ifthitah mustafa, marlia m. hanafiah, mohd adib ibrahim, mohd asri mat teridi, suhaila sepeai, azami zaharim, kamaruzzaman sopian.  (2018).  prospects of life cycle assessment of renewable energy from solar photovoltaic technologies: a review.  - renewable and sustainable energy reviews.  . 

ameen m. ali, yulisa yusoff, lamya m. ali, halina misran, md. akhtaruzzaman, mohammad a. alghoul, kamaruzzaman sopian, shahidan radiman, nowshad amin.  (2018).  synthesis of sphere-like-crystal cds powder and thin films using chemical residue in chemical bath deposition (cbd) for thin film solar cell application.  - solar energy.  . 

ammar m. abdulateef, jasim abdulateef, sohif mat, kamaruzzaman sopian, bashir elhub, munther abdullah mussa.  (2018).  experimental and numerical study of solidifying phase-change material in a triplex-tube heat exchanger with longitudinal/triangular fins.  - international communications in heat and mass transfer.  73-84. 

norasikin a. ludin, mahmoud a.m. al-alwani, abu bakar mohamad, abd. amir h.kadhum, norul hisham hamid, mohd adib ibrahim, mohd asri mat teridi, tarik m. ali al-hakeem, abduljabbar mukhlus, kamaruzzaman sopian.  (2018).  utilization of natural dyes from zingiber officinale leaves and clitoria ternatea flowers to prepare new photosensitisers for dye-sensitised solar cells.  - international journal of electrochemical science.  . 

cheku nurul aisyah, ahmad fudholi, mohd yusof othman, adnan ibrahim, mohd hafidz ruslan, kamaruzzaman sopian.  (2018).  kecekapan pengumpul pv/t menggunakan pengumpul terma reka bentuk pilin (efficiency of pv/t collector using spiral thermal absorber design).  - sains malaysiana.  . 

muhazri abd mutalib, norasikin ahmad ludin, nik ahmad aizudden nik ruzalman, vincent barrioz, suhaila sepeai, mohd asri mat teridi, mohd sukor suait, mohd adib ibrahim, kamaruzzaman sopian.  (2018).  progress towards highly stable and lead free perovskite solar cells.  - material for renewable and sustainable energy.  . 

nurul aqidah mohd sinin, mohd adib ibrahim, suhaila sepeai, mohd asri mat teridi, norasikin ahmad ludin, kamaruzzaman sopian & saleem h. zaidi.  (2018).  kebergantungan suhu dengan penggunaan tiub kuarza relau ke atas sel suria dwi-muka.  - sains malaysiana.  . 

saba a. salih, sohif mat and k. sopian.  (2018).  optimization of 300 watt vertical axis wind turbine for low wind speed regions: a case study of malaysia.  - research journal of applied sciences, engineering and technology.  . 

nurul syakirah nazri, ahmad fudholi, bardia bakhtyar, can hoy yen, adnan ibrahim, mohd hafidz ruslan, sohif mat, kamaruzzaman sopian.  (2018).  energy economic analysis of photovoltaic-thermal-thermoelectric (pvt-te) air collectors.  - renewable and sustainable energy reviews.  . 

b. elhub, sohif mat, k. sopian, a.m. elbreki, mohd hafidz ruslan, a.a. ammar.  (2018).  performance evaluation and parametric studies on variable nozzle ejector using r134a.  - case studies in thermal engineering.  . 

nurul syakirah nazri, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2018).  mathematical modeling of photovoltaic thermalthermoelectric (pvt-te) air collector.  - international journal of power electronics and drive system (ijpeds).  . 

ahmad fudholi, kamaruzzaman sopian.  (2018).  r&d of photovoltaic thermal (pvt) systems: an overview.  - international journal of power electronics and drive system (ijpeds).  . 

towhid h. chowdhury, ryuji kaneko, md. emrul kayesh, md. akhtaruzzaman, kamaruzzaman bin sopian, jae-joon lee, ashraful islam.  (2018).  nanostructured niox as hole transport material for low temperature processed stable perovskite solar cells.  - materials letters.  109-111. 

m. a. m. rosli, s. mat, k. sopian, e. salleh and m. k. a. sharif.  (2018).  experimental development to determine time constant for polymer collector.  - arpn journal of engineering and applied sciences.  1523-1527. 

nur ezyanie safie, norasikin ahmad ludin*, norul hisham hamid, mohd sukor suait, mohd asri mat-teridi, suhaila sepeai, mohd adib ibrahim, kamaruzzaman sopian, hironori arakawa.  (2018).  co-sensitization of natural sensitizers extracted from rengas (gluta spp.) and mengkulang (heritiera elata) wood with ruthenium dye (n719) to enhance the performance of dye-sensitized solar cells.  - malaysian journal of analytical sciences.  95-106. 

nortazi sanusi, azami zaharim, sohif mat, kamaruzzaman sopian.  (2018).  a finite mixture von mises distribution for wind direction analysis in kuala terengganu, malaysia.  - international journal of engineering & technology.  . 

ali najah al-shamani, m.a. alghoul, a.m. elbreki, a.a. ammar , azher m. abed, k. sopian.  (2018).  mathematical and experimental evaluation of thermal and electrical efficiency of pvt collector using different water based nano-fluids.  - energy.  770-792. 

ali h. a. al-waeli, hussein a. kazem, k. sopian, miqdam t. chaichan.  (2018).  techno-economical assessment of grid connected pv/t using nanoparticles and water as base-fluid systems in malaysia.  - international journal of sustainable energy.  558-575. 

m.t. ferdaous, p. chelvanathan, s.a. shahahmadi, m.m.i. sapeli , k. sopian, n. amin.  (2018).  compositional disparity in cu2znsns4 (czts) thin film deposited by rf-sputtering from a single quaternary compound target.  - materials letters.  . 

mohammad shakeri, mohsen shayestegan, s.m. salim reza, iskandar yahya, badariah bais, md akhtaruzzaman, kamaruzzaman sopian, nowshad amin.  (2018).  implementation of a novel home energy management system (hems) architecture with solar photovoltaic system as supplementary source.  - renewable energy.  108-120. 

ahed hameed jaaz, kamaruzzaman sopian, tayser sumer gaaz.  (2018).  study of the electrical and thermal performances of photovoltaic thermal collector-compound parabolic concentrated.  - results in physics.  500-510. 

m.m.i. sapeli, m.t. ferdaous, s.a. shahahmadi, k. sopian, p. chelvanathan , n. amin.  (2018).  effects of cr doping in the structural and optoelectronic properties of cu2znsns4 (czts) thin film by magnetron co-sputtering.  - materials letters.  22-25. 

mohsen shayestegan, mohammad shakeri, hamza abunima, s.m. salim reza, m. akhtaruzzaman, badariah bais, sohif mat, kamaruzzaman sopian, nowshad amin.  (2018).  an overview on prospects of new generation single-phase transformerless inverters for grid-connected photovoltaic (pv) systems.  - renewable & sustainable energy reviews.  515-530. 

ali.f. muftah, k. sopian,m.a. alghoul.  (2018).  performance of basin type stepped solar still enhanced with superior design concepts.  - desalination.  198-209. 

p. chelvanathan, s.a. shahahmadi, m.t. ferdaous, m.m.i. sapeli , k. sopian , n. amin.  (2018).  controllable formation of mos2 via preferred crystallographic orientation modulation of dc-sputtered mo thin film.  - materials letters.  174-177. 

norshazlinah abdul karim, norasikin ahmad ludin*, mohd asri mat-teridi, suhaila sepeai, mohd adib ibrahim, m. kouhnavard, kamaruzzaman sopian, hironori arakawa.  (2018).  effect of deposition time on of cobalt sulfide thin film electrode formation.  - malaysian journal of analytical sciences.  80-86. 

n. samsudin, m.t. ferdaous, s.a. shahahmadi, s.n. mustafa, md. akhtaruzzaman, k. sopian, p. chelvanathan, n. amin.  (2018).  deposition and characterization of rf-sputtered-ta2o5 thin films for o2 reduction reaction in polymer electrolyte membrane fuel cells (pemfc).  - optik - international journal for light and electron optics.  . 

zeki ahmed darwish, hussein, a. kazem, k. sopian, m. a. alghoul, hussain alawadhi.  (2018).  experimental investigation of dust pollutants and the impact of environmental parameters on pv performance: an experimental study.  - environment development and sustainability.  . 

ali h.a. al-waeli, miqdam t. chaichan, hussein a. kazem, k. sopian, javad safaei.  (2018).  numerical study on the effect of operating nanofluids of photovoltaic thermal system (pv/t) on the convective heat transfer.  - case studies in thermal engineering.  . 

ali h.a. al-waeli, k. sopian, hussein a kazem, miqdam t chaichan.  (2018).  nanofluid based grid connected pv/t systems in malaysia: a technoeconomical assessment.  - sustainable energy technologies and assessments.  . 

a.a. lahimer, m.a. alghoul, k. sopian, n.g. khrit.  (2018).  potential of solar reflective cover on regulating the car cabin conditions and fuel consumption.  - applied thermal engineering.  . 

kamaruzzaman sopian, ali h a alwaeli, husam abdulrasool hasan, ali najah al-shamani.  (2018).  advances in high efficiency photovoltaic thermal solar collectors.  - journal of advanced research in fluid mechanics and thermal sciences.  . 

alsanossi m. aboghrara, m. a. alghoul, b. t. h. t. baharudin, a. m.elbreki,a. a. ammar, k. sopian, and a. a. hairuddin.  (2018).  parametric study on the thermal performance and optimal design elements of solar air heater enhanced with jet impingement on a corrugated absorber plate.  - international journal of photoenergy.  1-21. 

husam abdulrasool hasan, kamaruzzaman sopian, ahmad fudholi.  (2018).  photovoltaic thermal solar water collector designed with a jet collision system.  - energy.  . 

kok hoe wong, wen tong chong, nazatul liana sukiman, yui-chuin shiah, sin chew poh, kamaruzzaman sopian, wei-cheng wang.  (2018).  experimental and simulation investigation into the effects of a flat plate deflector on vertical axis wind turbine.  - energy conversion and management.  109-125. 

idris zulkifle, ali h.a. alwaeli, mohd hafidz ruslan, zahari ibarahim, mohd yusof hj othman, kamaruzzaman sopian.  (2018).  numerical investigation of v-groove air-collector performance with changing cover in bangi, malaysia.  - case studies in thermal engineering.  . 

m.a. alghoul, s.a. shahahmadi, bita yeganeh, nilofar asim, a.m. elbreki, k. sopian, s.k. tiong, n. amin.  (2018).  a review of thermoelectric power generation systems: roles of existing test rigs/ prototypes and their associated cooling units on output performance.  - energy conversion and management.  . 

n. sanusi, a. zaharim, s. mat and k. sopian.  (2018).  bivariate probability model for wind power density analysis: case study.  - arpn journal of engineering and applied sciences.  656-659. 

samir mahmmod ahmad, cheow siu leong, k. sopian, saleem h. zaidi.  (2018).  role of firing temperature, sheet resistance, and contact area in contact formation on screen-printed metal contact of silicon solar cell.  - journal of electronic materials.  2120-2134. 

nortazi sanusi, azami zaharim, sohif mat, kamaruzzaman sopian.  (2018).  comparison of univariate and bivariate parametric model for wind energy analysis.  - journal of advanced research in fluid mechanics and thermal sciences.  . 

ali h.a. al-waelia, k. sopian, hussein a. kazem, jabar h. yousif, miqdam t. chaichan, adnan ibrahim, sohif mat, mohd hafidz ruslan.  (2018).  comparison of prediction methods of pv/t nanofluid and nano-pcm system using a measured dataset and artificial neural network.  - solar energy.  378-396. 

monadhil al-chaderchi, k. sopian, t. salameh, d. zhang, m. a. alghoul.  (2018).  enhancing the performance of pv panel undergoing shading effects.  - international journal of power electronics and drive system (ijpeds).  . 

husam abdulrasool hasan, kamaruzzaman sopian, kayser aziz ameen.  (2018).  numerical investigation of microjet impingement of water for cooling photovoltaic solar cell.  - journal of advanced research in fluid mechanics and thermal sciences.  . 

towhid hossain chowdhury, mohammad tanvirul ferdaous, mohd. aizat abdul wadi, puvaneswaran chelvanathan, nowshad amin, ashraful islam, nurhafiza kamaruddin, muhammad irsyamuddin m. zin, mohd hafidz ruslan, kamaruzzaman bin sopian and md. akhtaruzzaman.  (2018).  prospects of ternary cd1xznxs as an electron transport layer and associated interface defects in a planar lead halide perovskite solar cell via numerical simulation.  - journal of electronic materials.  3051-3058. 

husam abdulrasool hasan, zainab alquziweeni, kamaruzzaman sopian.  (2018).  heat transfer enhancement using nanofluids for cooling a central processing unit (cpu) system.  - journal of advanced research in fluid mechanics and thermal sciences.  . 

ejarder sabbir hossain, puvaneswaran chelvanathan, seyed ahmad shahahmadi, kamaruzzaman sopian, badariah bais, nowshad amin.  (2017).  performance assessment of cu2sns3 (cts) based thin film solar cells by amps-1d.  - current applied physics.  79-89. 

k.f. mustafa, s. abdullah, m.z. abdullah, k. sopian.  (2017).  a review of combustion-driven thermoelectric (te) and thermophotovoltaic (tpv) power systems.  - renewable and sustainable energy reviews.  572-584. 

nortazi sanusi, azami zaharim, sohif mat & kamaruzzaman sopian.  (2017).  a weibull and finite mixture of the von mises distribution for wind analysis in mersing, malaysia.  - international journal of green energy.  1057-1062. 

k. sopian, b. elhub, sohif mat, a. n. al-shamani, am elbreki, azher m. abed, husam abdulrasool, hasan and m. m. s. dezfouli.  (2017).  effect of the nozzle exit position on the efficiency of ejector cooling system using r134a.  - arpn journal of engineering and applied sciences.  5245-5250. 

m. m. s. dezfouli, k. sopian, ali najah al-shamani, husam abdulrasool hasan, azher m. abed, a. melbreki, b. elhub and sohif mat.  (2017).  energy saving potential of solar cooling systems in hot and humid region.  - arpn journal of engineering and applied sciences.  5241-5244. 

ali h.a. al-waeli, k. sopian, miqdam t. chaichan, hussein a. kazem, adnan ibrahim, sohif mat, mohd hafidz ruslan.  (2017).  evaluation of the nanofluid and nano-pcm based photovoltaic thermal (pvt) system: an experimental study.  - energy conversion and management.  693-708. 

mahmoud a. m. al alwani, abu bakar mohamad, abdul amir h. kadhum, norasikin a. ludin, n.e. safie, m.z. razali, m. ismail, kamaruzzaman sopian.  (2017).  natural dye extracted from pandannus amaryllifolius leaves as sensitizer in fabrication of dye sensitized solar cells.  - international journal of electrochemical sciences.  747-761. 

ammar m. abdulateef, sohif mat, kamaruzzaman sopian, jasim abdulateef, ali a. gitan.  (2017).  experimental and computational study of melting phase-change material in a triplex tube heat exchanger with longitudinal/triangular fins.  - solar energy.  142-153. 

samir mahmmod ahmad, siu leong cheow , norasikin a. ludin, k. sopian, saleem h. zaidi.  (2017).  in depth investigation of spin on doped solar cells with thermally grown oxide passivation.  - results in physics.  2183-2193. 

ahed hameed jaaz, husam abdulrasool hasan, kamaruzzaman sopian, abdul amir h. kadhum, tayser sumer gaaz and ahmed a. al-amiery.  (2017).  outdoor performance analysis of a photovoltaic thermal (pvt) collector with jet impingement and compound parabolic concentrator (cpc).  - materials.  1-16. 

p. chelvanathan, s.a. shahahmadi, f. arith, k. sobayel, m. aktharuzzaman, k. sopian, f.h. alharbi, n. tabet, n. amin.  (2017).  effects of rf magnetron sputtering deposition process parameters on the properties of molybdenum thin films.  - thin solid films.  213-219. 

s. m. ahmad, c.s. leong, k. sopian, s.h. zaidi.  (2017).  performance evaluation of screen-printed c-si solar cells fabricated by the simple and low-cost process.  - digest journal of nanomaterials and biostructures.  495-506. 

ali h.a. al-waeli, miqdam t. chaichan, hussein a. kazem, k. sopian.  (2017).  comparative study to use nano-(al2o3, cuo, and sic) with water to enhance photovoltaic thermal pv/t collectors.  - energy conversion and management.  963-973. 

azher m. abed, k. sopian, m.a. alghoul, hasan sh. majadi, ali najah al-shamani.  (2017).  experimental evaluation of single stage ejector absorption cooling cycle under different design configurations.  - solar energy.  130-141. 

m.w. kareem, khairul habib, k. sopian, m.h. ruslan.  (2017).  multi-pass solar air heating collector system for drying of screw-pine leaf (pandanus tectorius).  - renewable energy.  413-424. 

poorya ooshaksaraei, kamaruzzaman sopian, saleem h. zaidi, rozli zulkifli.  (2017).  performance of four air-based photovoltaic thermal collectors configurations with bifacial solar cells.  - renewable energy.  279-293. 

poorya ooshaksaraei, kamaruzzaman sopian, saleem h. zaidi, rozli zulkifli.  (2017).  performance of four air based photovoltaic thermal collectors configurations with bifacial solar cells.  - renewable energy.  279-293. 

mohammad shakeri, mohsen shayestegan, hamza abunima, s.m. salim reza,m. akhtaruzzaman, a.r.m. alamoud, kamaruzzaman sopian, nowshad amin.  (2017).  an intelligent system architecture in home energy management systems (hems) for efficient demand response in smart grid.  - energy and buildings.  154-164. 

husam abdulrasool hasan, kamaruzzaman sopian, ahed hameed jaaz, ali najah al-shamani.  (2017).  experimental investigation of jet array nanofluids impingement in photovoltaic/thermal collector.  - solar energy.  321-334. 

mahmoud a.m. al-alwani, norasikin a. ludin, abu bakar mohamad, abd. amir h. kadhum, kamaruzzaman sopian.  (2017).  extraction, preparation and application of pigments from cordyline fruticosa and hylocereus polyrhizus as sensitizers for dye-sensitized solar cells.  - spectrochimica acta part a: molecular and biomolecular spectroscopy.  23-31. 

a.m. elbreki, m.a. alghoul, k. sopian, t. hussein.  (2017).  towards adopting passive heat dissipation approaches for temperature regulation of pv module as a sustainable solution.  - renewable and sustainable energy reviews.  961-1017. 

ahed hameed jaaz, husam abdulrasool hasan, kamaruzzaman sopian, mohd hafidz bin haji ruslan, saleem hussain zaidi.  (2017).  design and development of compound parabolic concentrating for photovoltaic solar collector: review.  - renewable and sustainable energy reviews.  1108-1121. 

wan zulhafizhazuan, suhaila sepeai, cheow siu leong, kamaruzzaman sopian , saleem h. zaidi.  (2017).  performance analysis of simplified silicon solar cell on p-type crystalline silicon wafer.  - malaysian journal analytical sciences.  1127-1133. 

b. bakhtyar, a. fudholi, kabir hassan, m. azam, c.h. lim, n.w. chan, k. sopian.  (2017).  review of co2 price in europe using feed-in tariff rates.  - renewable and sustainable energy reviews.  685-691. 

azhar ghazali, elias salleh, lim chin haw, sohif mat, kamaruzzaman sopian.  (2017).  performance and financial evaluation of various photovoltaic vertical facades on highrise building in malaysia.  - energy and buildings.  306-318. 

ali h.a. al-waeli, k. sopian, miqdam t. chaichan, hussein a. kazem , husam abdulrasool hasan and ali najah al-shamani.  (2017).  an experimental investigation of sic nanofluid as a base-fluid for a photovoltaic thermal pv/t system.  - energy conversion and management.  547-558. 

ameen m. ali, k.s. rahman, lamya m. ali, m. akhtaruzzaman, k. sopian, s. radiman, n. amin.  (2017).  a computational study on the energy bandgap engineering in performance enhancement of cdte thin film solar cells.  - results in physics.  1066-1072. 

adnan ali, s.l. cheow, a.w. azhari , k. sopian, saleem h. zaidi.  (2017).  enhancing crystalline silicon solar cell efficiency with sixge1
x layers.  - results in physics.  225-232. 

suhaila sepeai, wan zulhafizhazuan, cheow siu leong, n.a .ludin, m.a.ibrahim, k.sopian, saleem h.zaidi.  (2017).  analisis arus-voltan bagi pengubahsuaian proses fabrikasi sel suria silikon jenis-p ke atas wafer silikon jenis-n.  - sains malaysiana.  1943-1949. 

s.s.s. baljit, h. y. chan, v.a. audwinto, s.a. hamid, ahmad fudholi, s.h. zaidi, m.y. othman, k. sopian.  (2017).  mathematical modelling of a dual-fluid concentrating photovoltaic thermal (pv-t) solar collector.  - renewable energy.  1258-1271. 

zeynab emdadi, nilofar asim, mohamad hassan amin, mohd ambar yarmo, ali maleki , mojtaba azizi and kamaruzzaman sopian.  (2017).  development of green geopolymer using agricultural and industrial waste materials with high water absorbency.  - applied sciences.  1-15. 

zeynab emdadi, nilofar asim, mohd ambar yarmo, mehdi ebadi, masita mohammad and kamaruzzaman sopian.  (2017).  chemically treated rice husk blends as green desiccant materials for industrial application.  - chemical engineering & technology.  1619-1629. 

ali h.a. al-waelia, k. sopian, hussein a. kazem, miqdam t. chaichan.  (2017).  photovoltaic thermal (pv/t) systems: status and future prospects.  - renewable and sustainable energy reviews.  109-130. 

ali najah al-shamani, k. sopian, sohif mat, azher m. abed.  (2017).  performance enhancement of photovoltaic grid-connected system using pvt panels with nanofluid.  - solar energy.  38-48. 

azhar ghazali, elias @ ilias salleh, lim chin haw, sohif mat, kamaruzzaman sopian.  (2017).  feasibility of vertical photovoltaic system on high-rise building in malaysia: performance evaluation.  - international journal of low carbon technologies.  263-271. 

nur izzati abdul aziz, shahril irwan sulaiman, sulaiman shaari, ismail musirin, kamaruzzaman sopian.  (2017).  optimal sizing of stand-alone photovoltaic system by minimizing the loss of power supply probability.  - solar energy.  220-228. 

nur ezyanie safie, norasikin ahmad ludin, norul hisham hamid, suhaila sepeai, mohd asri mat teridi, mohd adib ibrahim, kamaruzzaman sopian, hironori arakawa.  (2017).  energy levels of natural sensitizers extracted from rengas (gluta spp.) and mengkulang (heritiera elata) wood for dye-sensitized solar cells.  - materials for renewable and sustainanble energy.  1-9. 

m. yahya, ahmad fudholi, kamaruzzaman sopian.  (2017).  energy and exergy analyses of solar-assisted fluidized bed drying integrated with biomass furnace.  - renewable energy.  22-29. 

muhammad zohri, ahmad fudholi, mohd hafidz ruslan, kamaruzzaman sopian.  (2017).  performance analysis of photovoltaic thermal (pvt) with and without v-groove collector.  - journal of engineering and applied sciences.  6029-6032. 

azhar ghazali, elias salleh, lim chin haw, sohif mat and kamaruzzaman sopian.  (2017).  feasibility of a vertical photovoltaic system on a high-rise building in malaysia: economic evaluation.  - internationa of low carbon technologies.  349-357. 

nur ezyanie safie,norasikin ahmad ludin, norul hisham hamid, paridah md. tahir, mohd asri mat teridi, suhaila sepeai, mohd adib ibrahim, and kamaruzzaman sopian.  (2017).  electron transport studies of dye-sensitized solar cells based on natural sensitizer extracted from rengas (gluta spp.) and mengkulang (heritiera elata) wood..  - bioresources.  9227-9243. 

m.b. azwan, a.l. norasikin, k. sopian, s. abd rahim, k. norman, k. ramdhan, d. solah.  (2017).  assessment of electric vehicle and photovoltaic integration for oil palm mechanisation practise.  - journal of cleaner production.  1365-1375. 

nurfarizza surhada mohd nasir, suhaila sepeai, cheow siu leong, kamaruzzaman sopian, saleem h.zaidi.  (2017).  infra-red investigation on silicon solar cells.  - malaysian journal of analytical sciences.  1134-1142. 

chin hoong teh, rusli daik, eng liang lim, chi chin yap, mohd adib ibrahim, norasikin ahmad ludin, kamaruzzaman sopian, mohd asri mat teridi.  (2016).  a review of organic small molecule-based hole transporting materials for meso-structured organic-inorganic perovskite solar cells.  - journal of materials chemistry a.  15788-15822. 

towhid h. chowdhury, ashraful islam, a. k. mahmud hasan, m. asri mat terdi, m. arunakumari, surya prakash singh, md. khorshed alam, idriss m. bedja, mohd hafidz ruslan, kamaruzzaman sopian, nowshad am.  (2016).  prospects of graphene as a potential carrier-transport material in third-generation solar cells.  - the chemical record.  614-632. 

muhammad arif riza, mohd adib ibrahim, ubani charles ahamefula, mohd asri mat teridi, norasikin ahmad ludin, suhaila sepeai, kamaruzzaman sopian.  (2016).  prospects and challenges of perovskite type transparent conductive oxides in photovoltaic applications. part ii - synthesis and deposition.  - solar energy.  309-317. 

c.a. ubani, m.a. ibrahim, m.a.m. teridi, k. sopian, j. ali, k.t. chaudhary.  (2016).  application of graphene in dye and quantum dots sensitized solar cell.  - solar energy.  531-550. 

muhammad arif riza, mohd adib ibrahim, ubani charles ahamefula, mohd asri mat teridi, norasikin ahmad ludin, suhaila sepeai, kamaruzzaman sopian.  (2016).  prospects and challenges of perovskite type transparent conductive oxides in photovoltaic applications. part i - material developments.  - solar energy.  371-378. 

h. razali1*, k. sopian1, s. mat 1 , m.r.a. mansor2 and n. amon3.  (2016).  hydrogen mixture with gasoline for conventional motorcycles and effect on mass flow rate, brake thermal efficiency and emissions.  - international journal of automotive and mechanical engineering (ijame).  3681-3695. 

zeynab emdadi, nilofar asim, mohd ambar yarmo, roslinda shamsudin, masita mohammad and kamaruzaman sopian.  (2016).  green material prospects for passive evaporative cooling systems: geopolymers.  - energies.  1-19. 

ahmad fudholi, rado yendra, dayang fredalina basri, mohd hafidz ruslan, kamaruzzaman sopian.  (2016).  energy and exergy analysis of hybrid solar drying system.  - contemporary engineering sciences.  215 - 223. 

s.s.s. baljit, hoy-yen chan, kamaruzzaman sopian.  (2016).  review of building integrated applications of photovoltaic and solar thermal systems.  - journal of cleaner production.  677-689. 

m. yahya, ahmad fudholi, hadian hafizh, kamaruzzaman sopian.  (2016).  comparison of solar dryer and solar-assisted heat pump dryer for cassava.  - solar energy.  606-613. 

mahmoud a.m. al-alwani, abu bakar mohamad, norasikin a. ludin, abd. amir h. kadhum, kamaruzzaman sopian.  (2016).  dye-sensitised solar cells: development, structure, operation principles, electron kinetics, characterisation, synthesis materials and natural photosensitisers.  - renewable and sustainable energy reviews.  183-213. 

mehdi ebadi, mohamad y. sulaiman, mohd a. mat-teridi, wan j. basirun, maziar a. golsefidi, kamaruzzaman sopian, aryan sateei, ramin zafar mehrabian.  (2016).  efficient photo electrochemical performance using cuo based electrodes in aqua medium.  - journal of applied electrochemistry.  645-653. 

siti nur farhana mohd nasir, mohd khairul najib yahya, norfaizzatul wahidah mohamad sapian, norasikin ahmad ludin, mohd adib ibrahim, kamaruzzaman sopian and mohd asri mat teridi.  (2016).  heterojunction cr2o3/cuo:ni photocathodes for enhanced photoelectrochemical performance.  - rsc advances.  1-7. 

mojgan kouhnavard,norasikin ahmad ludin,babak vazifehkhah ghaffari,shoichiro ikeda,kamaruzzaman sopian,mikio miyake1.  (2016).  hydrophilic carbon/tio2 colloid composite a potential counter electrode for dye-sensitized solar cells.  - journal of applied electrochemistry.  1-8. 

m.k. mat desa , s. sapeai, a.w. azhari, k. sopian, m.y. sulaiman , n. amin, s.h. zaidi.  (2016).  silicon back contact solar cell configuration: a pathway towards higher efficiency.  - renewable and sustainable energy reviews.  1516-1532. 

mojgan kouhnavard,norasikin ahmad ludin,babak vazifehkhah ghaffari,kamaruzzaman sopian,norshazlinah abdul karim and mikio miyake.  (2016).  an efficient metal free hydrophilic carbon as a counter electrode for dye sensitized solar cells.  - international journal of photoenergy.  1-7. 

ahmad fudholi, sohif mat, dayang fredalina basri, mohd hafidz ruslan, kamaruzzaman sopian.  (2016).  performances analysis of greenhouse solar dryer with heat exchanger.  - contemporary engineering sciences.  135 - 144. 

abdul rahman th. mohammad, sohif bin mat, k.sopian , abduljalila.al-abidi.  (2016).  review:survey of the control strategy of liquid desiccant systems.  - renewable and sustainable energy reviews.  250-258. 

fatah o. al ghuol, k. sopian, and shahrir abdullah.  (2016).  enhancement of integrated solar collector with spherical capsules pcm affected by additive aluminum powder.  - journal of thermodynamics.  1-7. 

abed a.m., abed i.a., majdi h.s., al-shamani a.n., sopian k..  (2016).  a new optimization approach for shell and tube heat exchangers by using electromagnetism-like algorithm (em).  - heat and mass transfer/waerme- und stoffuebertragung.  2621-2634. 

ali h al-waeli, k sopian, hussein a kazem, miqdam t chaichan.  (2016).  photovoltaic solar thermal (pv/t) collectors past, present and future: a review.  - international journal of applied engineering research.  10757-10765. 

darwish z.a., sopian k., alawadhi h., kazem h.a., alghoul m.a..  (2016).  the impact of calcium carbonate on the photovoltaic performance: an indoor experimental study.  - international journal of applied engineering research.  2091-2097. 

mahmoud a.m. al alwani, norasikin a. ludin, abu bakar mohamad, abdul amir h. kadhum, muneer m. baabbad, kamaruzzaman sopian.  (2016).  optimization of dye extraction from cordyline fruticosa via response surface methodology to produce a natural sensitizer for dye sensitized solar cells.  - result in physics.  520-529. 

subramaniam sohila, ramesh rajendran, zahira yaakob, mohd asri mat teridi, kamaruzzaman sopian.  (2016).  photoelectrochemical water splitting performance of flower like zno nanostructures synthesized by a novel chemical method.  - journal of materials science: materials in electronics.  2846-2851. 

m.f.abdullah, m.a.alghoul, hameed naser, nilofar asim, shideh ahmadi, b. yatim, k.sopian.  (2016).  research and development efforts on texturization to reduce the optical losses at front surface of silicon solar cell.  - renewable and sustainable energy reviews.  380-398. 

ahmad fudholi, b. bakhtyar, habibis saleh, mohd hafidz ruslan, mohd yusof othman & kamaruzzaman sopian.  (2016).  drying of salted silver jewfish in a hybrid solar drying system and under open sun: modeling and performance analyses.  - international journal of green energy.  1135-1144. 

ali najah al-shamani , k. sopian , sohif mat , husam abdulrasool hasan , azher m. abed, m.h. ruslan.  (2016).  experimental studies of rectangular tube absorber photovoltaic thermal collector with various types of nanofluids under the tropical climate conditions.  - energy conversion and management.  528-542. 

a.a.razak, z.a.a.majid, w.h.azmi, m.h.ruslan, sh.choobchian, g.najafi, k. sopian.  (2016).  review on matrix thermal absorber designs for solar air collector.  - renewable and sustainable energy reviews.  682-693. 

nik muhammad hafiz, mohd radzi abu mansor, wan mohd faizal wan mahmood, fadzli ibrahim, shahrir abdullah, kamaruzzaman sopian.  (2016).  numerical study of hydrogen fuel combustion in compression ignition engine under argon-oxygen atmosphere.  - jurnal teknologi.  77-83. 

m.a. alghoul, p. poovanaesvaran, m.h. mohammed, a.m. fadhil, a.f. muftah,m.m. alkilani, k. sopian.  (2016).  design and experimental performance of brackish water reverse osmosis desalination unit powered by 2 kw photovoltaic system.  - renewable energy.  101-114. 

ayu wazira azhari, kamaruzzaman sopian, dewi suriyani che halin, abdul haqi ibrahim, saleem h. zaidi.  (2016).  response surface methodology (rsm) in fabrication of nanostructured silicon.  - material science forum.  151-155. 

ahmed samir naje, shreeshivadasan chelliapan, zuriati zakaria, mohammed a. ajeel, kamaruzzaman sopiand and husam abdulrasool hasan.  (2016).  electrocoagulation by solar energy feed for textile wastewater treatment including mechanism and hydrogen production using a novel reactor design with a rotating anode.  - rsc advances.  1-43. 

a.m.elbreki,m.a.alghoul,a.n.al-shamani,a.a.ammar,bita yegani, alsanossi m.aboghrara,m.h.rusaln,k.sopian.  (2016).  the role of climatic design operational parameters on combined pv/t collector performance a critical review.  - renewable and sustainable energy reviews.  602-647. 

s. misha, s. mat, m.h. ruslan, e. salleh , k. sopian.  (2016).  performance of a solar assisted solid desiccant dryer for oil palm fronds drying.  - solar energy.  415-429. 

azher m. abed, m.a. alghoul, k. sopian.  (2016).  performance evaluation of flash tank-absorption cooling cycle using two ejectors.  - applied thermal engineering.  47-60. 

k.f. mustafa, s. abdullah, m.z. abdullah, k. sopian.  (2016).  comparative assessment of a porous burner using vegetable cooking oil-kerosene fuel blends for thermoelectric and thermophotovoltaic power generation.  - fuel.  137-147. 

m.y. othman, s.a. hamid, m.a.s. tabook, k. sopian, m.h. ruslan & z. ibarahim.  (2016).  performance analysis of pv/t combi with water and air heating system: an experimental study.  - renewable energy.  716-722. 

halim razali, kamaruzzaman sopian, sohif mat.  (2015).  green fuel: 34% reduction of hydrocarbons via hydrogen (al+hcl) blended with gasoline at maximum torque for motorcycle operation.  - arpn journal of engineering and applied sciences.  7780-7783. 

halim razali, kamaruzzaman sopian, sohif mat, sazali ibrahim.  (2015).  modification of motorcycle with hydrogen mixture and effect on emission.  - arpn journal of engineering and applied sciences.  7719-7722. 

zuraini mohd enggsa, arfidian rachman, lisa nesti, sohif mat, kamaruzzaman sopian.  (2015).  performance analysis of heat pipe heat exchanger for solar hybrid desiccant air-conditioning system.  - advanced materials research.  488-493. 

victor lim chee huat, cheow siu leong, kamaruzzaman sopian, saleem hussain zaidi.  (2015).  pulsed laser interactions with silicon nanostructures in emitter formation.  - malaysian journal of analytical sciences.  1274-1283. 

janusz nowotny, mohammad abdul alim, tadeusz bak, mohammad asri idris, mihail ionescu, kathryn prince, mohd zainizan sahdan, kamaruzzaman sopian, mohd asri mat teridi and wolfgang sigmund.  (2015).  defect chemistry and defect engineering of tio2 based semiconductors for solar energy conversion.  - chemical society reviews.  8424-8442. 

zaihasraf zakaria, puvaneswaran chelvanathan, mohammad junaebur rashid, md akhtaruzzaman, mohammad mezbaul alam, zeid abdullah al-othman, abdulrahman alamoud, kamaruzzaman sopian and nowshad amin.  (2015).  effects of sulfurization temperature on cu2znsns4 thin film deposited by single source thermal evaporation method.  - japanese journal of applied physics.  1-5. 

azher m. abed , m.a. alghoul , r. sirawn , ali najah al-shamani , k. sopian.  (2015).  performance enhancement of ejector - absorption cooling cycle by re-arrangement of solution streamlines and adding rhe.  - applied thermal engineering.  65-75. 

k.f. mustafa, s. abdullah, m. z. abdullah, and k. sopian.  (2015).  combustion characteristics of butane porous burner for thermoelectric power generation.  - journal of combustion.  1-13. 

k.f. mustafa, s. abdullah, m.z. abdullah, k. sopian.  (2015).  experimental analysis of a porous burner operating on kerosene-vegetable cooking oil blends for thermophotovoltaic power generation.  - energy conversion and management.  544-560. 

yunus ahmed, zahira yaakob, parul akhtar, kamaruzzaman sopian.  (2015).  production of biogas and performance evaluation of existing treatment processes in palm oil mill effluent (pome).  - renewable and sustainable energy reviews.  1260-1278. 

n. a. khan, k. s. rahman, m. i. kamaruzzaman, f. haque, m. a. islam, m. m. alam, z. a. alothman, k. sopian, n. amin.  (2015).  effect of laser annealing on cdte thin film deposited by thermal evaporation.  - chalcogenide letters.  191 - 201. 

s. misha, s. mat, m.h. ruslan, e. salleh, k. sopian.  (2015).  performance of a solar assisted solid desiccant dryer for kenaf core fiber drying under low solar radiation.  - solar energy.  194-204. 

p. chelvanathan, y. yusoff, f. haque, m. akhtaruzzaman, m.m. alam,z.a. alothman, m.j. rashid, k. sopian, n. amin.  (2015).  growth and characterization of rf-sputtered zns thin film deposited at various substrate temperatures for photovoltaic application.  - applied surface science.  138-144. 

p. chelvanathan, z. zakaria, y. yusoff, m. akhtaruzzaman, m.m. alam,m.a. alghoul, k. sopian, n. amin,.  (2015).  annealing effect in structural and electrical properties of sputteredmo thin film.  - applied surface science.  129-137. 

t. khatib, a. mohamed, k. sopian, m. mahmoud.  (2015).  optimal sizing of hybrid pv/wind systems for malaysia using loss of load probability.  - energy sources part a:recovery, utilisation and environmental effects.  687-695. 

tamer khatib, azah mohamed, m mahmoud, kamaruzzaman sopian.  (2015).  optimization of the tilt angle of solar panels in malaysia.  - energy sources part a:recovery, utilisation and environmental effects.  606-613. 

k.f. mustafa, s. abdullah, m.z. abdullah, k. sopian, a.k. ismail.  (2015).  experimental investigation of the performance of a liquid fuel-fired porous burner operating on kerosene-vegetable cooking oil (vco) blends for micro-cogeneration of thermoelectric power.  - renewable energy.  505-516. 

willy tjiu,tjukup marnoto, sohif mat,mohd hafidz ruslan,kamaruzzaman sopian.  (2015).  darrieus vertical axis wind turbine for power generation ii: challenges in hawt and the opportunity of multi-megawatt darrieus vawt development.  - renewable energy.  560-571. 

willy tjiu, tjukup marnoto, sohif mat, mohd hafidz ruslan, kamaruzzaman sopian.  (2015).  darrieus vertical axis wind turbine for power generation i: assessment of darrieus vawt configurations.  - renewable energy.  50-67. 

ayu wazira azhari, kamaruzzaman sopian, mohd khairunaz mat desa, saleem h. zaidi.  (2015).  optimization of silver assisted nano pillar etching process in silicon.  - applied surface science.  1863-1877. 

hyder h. balla, shahrir abdullah, wan mahmood wan mohd faizal, rozli zulkifli, kamaruzaman sopian.  (2015).  enhancement of heat transfer coefficient multi-metallic nanofluid with anfis modeling for thermophysical properties.  - thermal science.  1613-1620. 

n. dhar, n. a. khan, p. chelvanathan, m. akhtaruzzaman, m. m. alam, z. a. alothman, k. sopian, n. amin.  (2015).  a comprehensive study on mo/cdte metal-semiconductor interface deposited by radio frequency magnetron sputtering.  - journal of nanoscience and nanotechnology.  9291-9297. 

m. a. islam, k. s. rahman, f. haque, n.a. khan, m. akhtaruzzaman, m. m. alam, h. ruslan, k. sopian, n. amin.  (2015).  effect of sn doping on the properties of nano-structured zno thin films deposited by co-sputtering technique.  - journal of nanoscience and nanotechnology.  9184-9191. 

fatah. o. al ghuol, k.sopian, shahrir abdullah, mohammed al-ghoul & ali whaad.  (2015).  heat transfer enhancement techniques for solar air collector hater a review.  - modern applied science.  20-34. 

nurul aqidah mohd sinin, mohd adib ibrahim, mohd asri mat teridi, norasikin ahmad ludin, suhaila sepeai, kamaruzzaman sopian.  (2015).  si functionalization with dye molecular as lightharvesting material.  - malaysian journal of analytical sciences (mjas).  1256-1263. 

s. a. shahahmadi, b. yeganeh, n. huda, n. asim, m. hafidz, m. m. alam, z. a. alothman, k. sopian, and n. amin.  (2015).  properties of a-sige thin films on glass by co- sputtering for photovoltaic absorber application.  - journal of nanoscience and nanotechnology.  9275-9280. 

ayu wazira azhari, kamaruzzaman sopian, saleem hussain zaidi.  (2015).  heteroepitaxial growth of vacuum evaporated sige films on nanostructured silicon substrates.  - malaysian journal of analytical sciences.  1229-1242. 

ali najah al shamani, sohif mat, m. h. ruslan, azher m. abed, k. sopian..  (2015).  numerical study on the characteristics of a specially designed rectangular tube absorber photovoltaic thermal collector (pvt).  - wseas transactions on environment and development.  23-28. 

al-shamani a.n., sopian k., mohammed h.a., mat s., ruslan m.h., abed a.m..  (2015).  enhancement heat transfer characteristics in the channel with trapezoidal rib-groove using nanofluids.  - case studies in thermal engineering.  48-58. 

bakhtyar b., saadatian o., alghoul m.a., ibrahim y., sopian k..  (2015).  solar electricity market in malaysia: a review of feed-in tariff policy.  - environmental progress and sustainable energy.  600-606. 

alkhair m., sulaiman m.y., sopian k., lim c.h., salleh e., mat s., saha b.b..  (2015).  design and modeling of one refrigeration ton solar assisted adsorption air conditioning system.  - journal of solar energy engineering, transactions of the asme.  . 

abed a.m., alghoul m.a., sopian k., mohammed h.a., majdi h.s., al-shamani a.n..  (2015).  design characteristics of corrugated trapezoidal plate heat exchangers using nanofluids.  - chemical engineering and processing: process intensification.  88-103. 

abed a.m., alghoul m.a., sirawn r., al-shamani a.n., sopian k..  (2015).  performance enhancement of ejector-absorption cooling cycle by re-arrangement of solution streamlines and adding rhe.  - applied thermal engineering.  65-75. 

majid z.a.a., razak a.a., ruslan m.h., sopian k..  (2015).  characteristics of solar thermal absorber materials for cross absorber design in solar air collector.  - international journal of automotive and mechanical engineering.  2582-2590. 

ahmad fudholi,kamaruzzaman sopian, mohamed gabbasa, b.bakhtyar, m. yahya, mohd hafidz ruslan, sohif mat.  (2015).  techno-economic of solar drying systems with water based solar collectors in malaysia: a review.  - renewable and sustainable energy reviews.  809-820. 

m.k. anuar sharif, a.a. al-abidi, s. mat, k. sopian, m.h. ruslan, m.y. sulaiman & m.a.m. rosli.  (2015).  review of the application of phase change material for heating and domestic hot water systems.  - renewable and sustainable energy reviews.  557-568. 

azher m. abed, m.a. alghoul, ali najah al-shamani, k. sopian.  (2015).  evaluating ejector efficiency working under intermediate pressure of flash tank-absorption cooling cycle: parametric study.  - chemical engineering and processing: process intensification.  222-234. 

w.j.hee , m.a.alghoul, b.bakhtyar, om kalthum elayeb, m.a.shameri, m.s.alrubaih, k.sopian.  (2015).  the role of window glazing on daylighting and energy saving in buildings.  - renewable and sustainable energy reviews.  323-343. 

darwish z.a., kazem h.a., sopian k., al-goul m.a., alawadhi h..  (2015).  effect of dust pollutant type on photovoltaic performance.  - renewable and sustainable energy reviews.  735-744. 

abed a.m., alghoul m.a., yazdi m.h., al-shamani a.n., sopian k..  (2015).  the role of enhancement techniques on heat and mass transfer characteristics of shell and tube spray evaporator: a detailed review.  - applied thermal engineering.  923-940. 

f. hussain, myh othman, b yatim, h ruslan, k sopian, z. anuar & s. khairuddin.  (2015).  an improved design of photovoltaic/thermal solar collector.  - solar energy.  885-891. 

roonak daghigh, mohd hafidz ruslan,kamaruzzaman sopian.  (2015).  parametric studies of an active solar water heating system with various types of pvt collectors.  - sadhana-academy proceedings in engineering sciences.  2177-2196. 

mojgan kouhnavard, norasikin ahmad ludin, babak v. ghaffari, kamarozzaman sopian and shoichiro ikeda.  (2015).  carbonaceous materials and their advances as a counter electrode in dye-sensitized solar cells: challenges and prospects.  - chemsuschem.  1510-1533. 

ahmad fudholi, kamaruzzaman sopian, m a alghoul, mohd hafidz ruslan & mohd yusof othman.  (2015).  performances and improvement potential of solar drying system for palm oil fronds.  - renewable energy.  561-565. 

m. ebadi, m. a. mat-teridi, m. y. sulaiman, w. j. basirun, n. asim, n. a. ludin, m. a. ibrahim, k. sopian.  (2015).  electrodeposited p-type co3o4 with high photoelectrochemical performance in aqueous medium.  - rsc advances.  36820-36827. 

nilofar asim, zeynab emdadi, masita mohammad, m. a. yarmo, k. sopian.  (2015).  agricultural solid wastes for green desiccant applications: an overview of research achievements, opportunities and perspectives.  - journal of cleaner production.  26-35. 

azher m.abed, k.sopian, h.a.mohammed, m.a.alghoul, mohd hafidz ruslan, sohif mat, ali najah al-shamani.  (2015).  enhance heat transfer in the channel with v-shaped wavy lower plate using liquid nanofluids.  - case studies in thermal engineering.  13-23. 

ahmad fudholi, kamaruzzaman sopian, b. bakhtyar, mohamed gabbasa, mohd yusof othman, mohd hafidz ruslan.  (2015).  review of solar drying systems with air based solar collectors in malaysia.  - renewable and sustainable energy reviews.  1191-1204. 

m.b. farriz, m.n. hashim, n.a rais, a.a. zulkefle, m.s.a. khiar, sohif mat, k. sopian.  (2015).  the effect of viscous losses factor on a simple pico-hydro reaction type turbine.  - international journal of applied engineering research.  44489-44492. 

amir abdul razak, zafri azran abdul majid, mohd hafidz ruslan, kamaruzzaman sopian.  (2015).  thermal performance analysis of staging effect of solarthermal absorber with cross design.  - malaysian journal of analytical sciences.  1264-1273. 

m.b. farriz, h. boejang, m. masjuri, m.s.m. aras, n.h.a. razik, s. mate, k. sopian.  (2015).  evolution of simple reaction type turbines for pico hydro applications.  - jurnal teknologi.  1-9. 

mohd syahriman mohd azmi, mohd. yusof hj. othman, mohd hafidz hj. ruslan, kamaruzzaman sopian, zafri azran abdul majid and ahmad fudholi.  (2015).  research and development work on solar assisted drying systems..  - research journal of applied sciences, engineering and technology.  701-714. 

abduljalil a. al-abidi, sohif mat, k. sopian, m.y. sulaiman, abdulrahman. th. mohammad.  (2014).  experimental study of melting and solidification of pcm in a triplex tube heat exchanger with fins.  - energy and buildings.  68:33-41. 

ahmad fudholi, kamaruzzaman sopian, mohd yusof othman, mohd hafidz ruslan.  (2014).  energy and exergy analyses of solar drying system of red seaweed.  - energy and buildings.  68:121-129. 

ahmad fudholi, kamaruzzaman sopian, mohammad h. yazdi, mohd hafidz ruslan, adnan ibrahim, hussein a. kazem.  (2014).  performance analysis of photovoltaic thermal (pvt) water collectors.  - energy conversion and management.  78:641-651. 

adnan ibrahim, ahmad fudholi, kamaruzzaman sopian, mohd yusof othman, mohd hafidz ruslan.  (2014).  efficiencies and improvement potential of building integrated photovoltaic thermal (bipvt) system.  - energy conversion and management.  527-534. 

ahmad fudholi, kamaruzzaman sopian, mohammad h. yazdi, mohd hafidz ruslan, mohamed gabbasa, hussein a. kazem.  (2014).  performance analysis of solar drying system for red chili.  - solar energy.  99:47-54. 

m. n. imamzai, m. a. islam, m. j. rashid, t. h. chowdhury, m. m. alam, zeid a. alothman, k. sopian, n. amin.  (2014).  optimization of graded bandgap cd1-xznxte thin film solar cells from numerical analysis.  - chalcogenide letters.  541-551. 

m. a. islam, k. s. rahman, f. haque, n. dhar, mohammad salim, m. akhtaruzzaman, k. sopian, n. amin.  (2014).  opto-electrical properties of in doped cds thin films by co-sputtering technique.  - journal of ovonic research.  185-190. 

ramesh rajendran, zahira yaakob, mohd asri mat teridi, muhammad syukri abd rahaman, kamaruzzaman sopian.  (2014).  preparation of nanostructured p-nio/n-fe2o3 heterojunction and study of their enhanced photoelectrochemical water splitting performance.  - materials letters.  123-126. 

suhaila  sepeai,  saleem  h.  zaidi,  m.y.  sulaiman,  k.  sopian,  m.a.  ibrahim,   m.k.m.  desa  and  m.d.  norizam.  (2014).  advanced material research.  - detailed  analysis  of  shallow  and  heavily-­doped  emitters  for  al-­bsf   bifacial  solar  cells.  896:459-463. 

s. misha,s. mat, m.h. ruslan,k. sopian and e. salleh.  (2014).  comparison between 2d and 3d simulations of a tray dryer system using cfd software.  - world applied sciences journal.  29 (10): 1301-1309. 

halim razali, kamaruzzaman sopian, sohif mat.  (2014).  hydrogen blended with gasoline for internal combustion engine effect on specific fuel consumption based on load tests (l0,l1,l2).  - applied mechanics and materials.  465-466 (2014):1239-124. 

m.m.s. dezfouli, s. moghimi, f. azizpour, s. mat, k. sopian.  (2014).  feasibility of saving energy by using vsd in hvac system, a case study of large scale hospital in malaysia.  - wseas transactions on environment and development.  10 (2014) : 15-25. 

m.a.m. rosli, s. misha, k. sopian, s. mat, m.yusof sulaiman and e. salleh.  (2014).  parametric analysis on heat removal factor for a flat plate solar collector of serpentine tube.  - world applied sciences journal.  29 (2): 184-187. 

hussein a. kazem, tamer khatib, k. sopian, wilfried elmenreich.  (2014).  performance and feasibility assessment of a 1.4 kw roof top grid connected photovoltaic power system under desertic weather conditions.  - energy and buildings.  82:123-129. 

shideh ahmadi, nilofar asim, m.a. alghoul, f. y. hammadi, kasra saeedfar, n. a. ludin , saleem h. zaidi, k. sopian.  (2014).  the role of physical techniques on the preparation of photoanodes for dye sensitized solar cells.  - international journal of photoenergy.  2014:1-19. 

m. kouhnavard, s. ikeda, n. a. ludin, nb ahmad khairudin, b. v. ghaffari, m. teridi, m. a. ibrahim, s. sepeai, k. sopian.  (2014).  a review of semiconductor materials as sensitizers for quantum dot-sensitized solar cells.  - renewable and sustainable energy reviews.  37(2014):397-407. 

zatil amali che ramli, nilofar asim, wan n. r. w. isahak, zeynab emdadi, norasikin ahmad ludin, m. ambar yarmo and kamaruzzaman sopian.  (2014).  photocatalytic degradation of methylene blue under uv light irradiation on prepared carbonaceous tio2.  - the scientific world journal.  Volume 2014,ID 415136. 

manoj pudukudy, zahira yaakob, masita mohammad, binitha narayanan, kamaruzzaman sopian.  (2014).  renewable hydrogen economy in asia - opportunities and challenges: an overview.  - renewable and sustainable energy reviews.  743-757. 

ali najah al-shamani, k. sopian, h.a. mohammed, sohif mat, mohd hafidz ruslan, azher m. abed.  (2014).  enhancement heat transfer characteristics in the channel with trapezoidal rib-groove using nanofluids.  - case studies in thermal engineering.  48-58. 

p poovanaesvaran, ma alghoul, a fadhil, mm abdul-majeed, n asim, k sopian.  (2014).  techno-economic evaluation of a small-scale pv-bwro system at different latitudes.  - desalination and water treatment.  7082-7091. 

m. alkhair, mohd yusof sulaiman, kamaruzzaman sopian, chin haw lim, elias salleh, sohif bin mat, b.b. saha.  (2014).  design and modeling of one refirgeration ton (rt) solar assisted adsorption air conditioning system.  - journal of solar energy engineering.  2014. 

z. a. a. majid, m. h. ruslan, k. sopian, m. y. othman and m. s. m. azmi.  (2014).  study on performance of 80 watt floating photovoltaic panel.  - journal of mechanical engineering and sciences.  1150-1156. 

norasikin a. ludin, a.m. al-alwani mahmoud, abu bakar mohamad, abd. amir h. kadhum, kamaruzzaman sopian, nor shazlinah abdul karim.  (2014).  review on the development of natural dye photosensitizer for dye-sensitized solar cells.  - renewable and sustainable energy reviews.  31:386-396. 

mohamed gabbasa, kamaruzzaman sopian, ahmad fudholi, nilofar asim.  (2014).  a review of unitized regenerative fuel cell stack: material, design and research achievements.  - international journal of hydrogen energy.  17765-17778. 

norasikin a. ludin, m.azwan m. bakri, norman kamaruddin, kamaruzzaman sopian, m. solah deraman, norul hisham hamid, nilofar asim, m. yusuf othman.  (2014).  malaysian oil palm plantation sector: exploiting renewable energy toward sustainability production.  - journal of cleaner production.  65(2014):9-15. 

m. h. yazdi, i. hashim, a. fudholi, p. ooshaksaraei, and k. sopian.  (2014).  entropy generation analysis of power-law non-newtonian fluid flow caused by micropatterned moving surface.  - mathematical problems in engineering.  1-16. 

m.a. mat teridi, asif ali tahir, s. senthilarasu, k.g.u. wijayantha, m.y. sulaiman, n. ahmad ludin, m.a. ibrahim and k. sopian.  (2014).  fabrication of nio photoelectrodes by aerosol assisted chemical vapour deposition (aacvd).  - physica status solidi (rrl) rapid research letters.  982-986. 

othman m.y.h., zaidi s.h., sopian k., jelita m..  (2014).  thermal analysis and performance of double glazing window with semi-transparent photovoltaic module [analisis terma dan prestasi tetingkap dwi kaca dengan modul fotovoltan semi-lutsinar].  - sains malaysiana.  575 - 582. 

el-ladan a.h., ruslan m.h., chan h.y., sopian k., zaidi s.h..  (2014).  comparative evaluation of reflective and refractive optical concentration systems in tropical climate.  - research journal of applied sciences, engineering and technology.  1319 - 1325. 

z. a. a. majid, m. h. ruslan, k. sopian, m. y. othman, and m. s. m. azmi.  (2014).  study on performance of 80 watt floating photovoltaic panel.  - journal of mechanical engineering and sciences.  1150-1156. 

suhaila abdul hamid, mohd yusof othman, kamaruzzaman sopian, saleem h. zaidi.  (2014).  an overview of photovoltaic thermal combination (pv/t combi) technology.  - renewable and sustainable energy reviews.  38:212-222. 

emdadi z., asim n., ramali z.a.c., yarmo m.a., shamsudin r., sopian k..  (2014).  feasibility study of using rice husk and its treated forms with alkali solution as a desiccant material.  - wseas transactions on environment and development.  306 - 311. 

suhaila  sepeai, saleem  h. zaidi, m.y. sulaiman,  k. sopian,  m.a. ibrahim m.k.m. desa  and  m.d. norizam.  (2014).  detailed  analysis  of  shallow  and  heavily-­doped  emitters  for  al-­bsf   bifacial  solar  cells.  - advanced materials research.  459-463. 

rosli m.a.m., mat s., sharif m.k.a., sopian k., sulaiman m.y., salleh e..  (2014).  collector efficiency of the polymer solar collector.  - advances in environmental biology.  2583 - 2588. 

majeed a.m.a., suliman m.y., sopian k..  (2014).  weather effect on the solar adsorption air-conditioning system using activated carbon fiber/ethanol as pair of refrigeration: a case study of malaysia.  - research journal of applied sciences, engineering and technology.  1069 - 1075. 

roslizar a., alghoul m.a., bakhtyar b., asim n., sopian k..  (2014).  annual energy usage reduction and cost savings of a school: end-use energy analysis.  - scientific world journal.  . 

mohd yusof hj othman, saleem h. zaidi, kamaruzzaman sopian & marhama jelita.  (2014).  analisis terma dan prestasi tetingkap dwi kaca dengan modul fotovoltan semi-lutsinar.  - sains malaysiana.  43(4): 575-582. 

dhar n., chowdhury t.h., islam m.a., khan n.a., rashid m.j., alam m.m., alothman z.a., sopian k., amin n..  (2014).  effect of n-type transition metal dichalcogenide molybdenum telluride (n-mote2) in back contact interface of cadmium telluride solar cells from numerical analysis.  - chalcogenide letters.  271 - 279. 

yazdi m.h., hashim i., moey l.k., sopian k..  (2014).  slip velocity effect on non-newtonian fluid flow over moving permeable surface with nonlinear velocity and internal heat generation/absorption.  - international review on modelling and simulations.  661-670. 

yazdi m.h., hashim i., sopian k.b..  (2014).  slip boundary layer flow of a power-law fluid over moving permeable surface with viscous dissipation and prescribed surface temperature.  - international review of mechanical engineering.  502-510. 

siti nur farhana mohd nasir mohamad yusof sulaiman norasikin ahmad ludin mohd adib ibrahim kamaruzzaman sopian mohd asri mat teridi.  (2014).  review of polymer dye sensitized and hybrid solar cells.  - international journal of photoenergy.  12. 

m. a.islam, m.s. hossain, k.s. rahman, f. haque, m.y. sulaiman, k. sopian, nowshad amin.  (2014).  enhancement of optical properties of cds thin films prepared from sputtering technique: effect of thermal annealing.  - australian journal of basic and applied sciences.  284-287. 

m. a. islam, k.s. rahman, f. haque, m. akhtaruzzaman, m. m. alam, z. a. alothman, k. sopian and n. amin.  (2014).  properties of low temperature vacuum annealed czts thin films deposited on polymer substrate.  - chalcogenide letters.  11(5): 233-239. 

b. bakhtyar, y. ibrahim, m.a. alghoul, n. aziz, a. fudholi, k. sopian.  (2014).  estimating the co2 abatement cost:substitute price of avoiding co2 emission (spae) by renewable energys feed in tariff in selected countries.  - renewable and sustainable energy reviews.  35:205-210. 

ali najah al-shamani, mohammad h.yazdi, m.a.alghoul,azher m.abed, m.h. ruslan, sohif mat, k.sopian.  (2014).  nanofluids for improved efficiency in cooling solar collectors - a review.  - renewable and sustainable energy reviews.  38:348-367. 

ramesh rajendran, zahira yaakob , manoj pudukudy , muhammad syukri abd rahaman , kamaruzzaman sopian.  (2014).  photoelectrochemical water splitting performance of vertically aligned hematite nanoflakes deposited on fto by a hydrothermal method.  - journal of alloys and compounds.  608: 207-212. 

samia ahmed nadi, puvaneswaran chelvanathan, zaihasraf zakaria, mohammad mezbaul alam, zeid a. alothman, kamaruzzaman sopian, and nowshad amin.  (2014).  postdeposition annealing effect on cu2znsns4 thin films grown at different substrate temperature.  - international journal of photoenergy.  2014, 589027:1-7. 

f. haque, k. s. rahman, m. a. islam, m. j. rashid, m. akhtaruzzaman, m. m. alam, z. a. alothman, k. sopian, n. amin.  (2014).  growth optimization of zns thin films by rf magnetron sputtering as prospective buffer layer in thin film solar cells.  - chalcogenide letters.  11(4):189-197. 

ali ahmed gitan,rozli zulkifli,shahrir abdullah,kamaruzzaman sopian.  (2014).  development of pulsating twin jets mechanism for mixing flow heat transfer analysis.  - the scientific world journal.  2014;1-8. 

s. moghimi, f. azizpour, s. mat, c. h. lim, e. salleh, k. sopian.  (2014).  building energy index and end use energy analysis in large scale hospitals - case study in malaysia.  - energy efficency.  7:243-256. 

k.s. rahman, f. haque, n.a. khan, m. a. islam, m.m. alam, z.a. alothman, k. sopian, n. amin.  (2014).  effect of cdcl2 treatment on thermally evaporated cdte thin films.  - chalcogenide letters.  11(3): 129-139. 

m. m. s. dezfouli, s. mat, g. pirasteh, k. s. m. sahari, k. sopian, and m. h. ruslan.  (2014).  simulation analysis of the four configurations of solar desiccant cooling system using evaporative cooling in tropical weather in malaysia.  - international journal of photoenergy.  2014:Article ID 843617. 

ali. f. muftah, m.a.alghoul, ahmad fudholi, m.m.abdul-majeed, k.sopian.  (2014).  factors affecting basin type solar still productivity: a detailed review.  - renewable and sustainable energy reviews.  32:430-447. 

m.s. hossain, m.a. islam, q. huda, m.m. aliyu, t. razykov, m.m. alam, z.a. alothman, k. sopian, n. amin.  (2013).  growth optimization of znxcd1 _ xs thin films by radio frequency magnetron co-sputtering for solar cell applications.  - thin solid films.  548(2013):202-209. 

khatib, tamer; sopian, kamaruzzaman; kazem, hussein a..  (2013).  actual performance and characteristic of a grid connected photovoltaic power system in the tropics: a short term evaluation.  - energy conversion and management.  71:115-119. 

razykov, t. m.; amin, n.; alghoul, m.; ergashev, b.; ferekides, c. s.; goswami, y.; hakkulov, m. k.; kouchkarov, k. m.; sopian, k.; sulaiman, m. y.; ullal, h. s..  (2013).  revolutionary novel and low cost cmbd method for fabrication of cdte absorber layer for use in thin film solar cells.  - materials technology.  28(1-2):15-20. 

zahira yaakob, masita mohammad, mohammad alherbawi, zahangir alam, kamaruzaman sopian.  (2013).  overview of the production of biodiesel from waste cooking oil.  - renewable & sustainable energy reviews.  18:184-193. 

tamer khatib, azah mohamed, k. sopian & m. mahmoud.  (2013).  optimal sizing of the energy sources in hybrid pv/diesel systems: a case study for malaysia.  - international journal of green energy.  10(1):41-52. 

hussein a kazem, tamer khatib, k. sopian, frank buttinger, wilfried elmenreich, ahmed said albusaidi.  (2013).  effect of dust deposition on the performance of multi-crystalline photovoltaic modules based on experimental measurements.  - international journal of renewable energy research.  3(4):850-853. 

omidreza saadatian, kamaruzzaman bin sopian, elias salleh.  (2013).  adaptation of sustainability community indicators for malaysian campuses as small cities.  - sustainable cities and society.  6:40-50. 

hyder h. balla, shahrir abdullah, emad a. jaffar al-mulla, wan mohd faizal wan mahmood, rozli zulkifli, kamaruzaman sopian.  (2013).  effect of reynolds number on heat transfer and flow for multi-oxide nanofluids using numerical simulation.  - research on chemical intermediates.  39(5):2197-2210. 

nurulkamal masseran, ahmad mahir razali, kamarulzaman ibrahim, azami zaharim & kamaruzzaman sopian.  (2013).  the probability distribution model of wind speed over east malaysia.  - research journal of applied sciences, engineering and technology.  6(10):1774-1779. 

abduljalil a. al-abidi, sohif mat, k. sopian, m.y. sulaiman, abdulrahman th. mohammad.  (2013).  experimental study of pcm melting in triplex tube thermal energy storage for liquid desiccant air conditioning system.  - energy and buildings.  60:270-279. 

abduljalil a. al-abidi, sohif mat, k. sopian, m.y. sulaiman, abdulrahman th. mohammad.  (2013).  internal and external fin heat transfer enhancement technique for latent heat thermal energy storage in triplex tube heat exchangers.  - applied thermal engineering.  53(1):147-156. 

omidreza saadatian, k. sopian, e. salleh, c.h. lim, safa riffat, elham saadatian, arash toudeshki, m.y. sulaiman.  (2013).  a review of energy aspects of green roofs.  - renewable and sustainable energy reviews.  23:155-168. 

s. moghimi, b. bakhtyar, f. azizpour, k. sopian, c.h. lim, s. mat, e. salleh.  (2013).  maximization of energy saving and minimization of insulation cost in a tropical hospital: a case study in malaysia.  - wseas transactions on environment and development.  9(2):211-221. 

mahdi shahmiri, nor azowa ibrahim, norhazlin zainuddin, nilofar asim, b bakhtyar, a zaharim, k sopian.  (2013).  effect of ph on the synthesis of cuo nanosheets by quick precipitation method.  - wseas transactions on environment and development.  9(2):243-252. 

sohif mat, abduljalil a. al-abidi, k. sopian, m.y. sulaiman, abdulrahman th mohammad.  (2013).  enhance heat transfer for pcm melting in tripex tube with internal-external fins.  - energy conversion and management.  74:223-236. 

omidreza saadatian, chin haw lim, kamaruzzaman sopian and elias salleh.  (2013).  a state of the art review of solar walls: concepts and applications.  - journal of building physics.  37(1):55-79. 

f. azizpour, s. moghimi, e. salleh, s. mat, c.h. lim, k. sopian.  (2013).  thermal comfort assessment of large-scale hospitals in tropical climates: a case study of university kebangsaan malaysia medical centre (ukmmc).  - energy and buildings.  64:317-322. 

f. azizpour, s. moghimi, c.h. lim, s. mat, e. salleh, k. sopian.  (2013).  a thermal comfort investigation of a facility department of a hospital in hot-humid climate: correlation between objective and subjective measurements.  - indoor and built environment.  22(5):836-845. 

eman sad ashour, mohamad yusof bin sulaiman, mohd hafidz ruslan and kamaruzzaman sopian.  (2013).  a-si:h/sinw shell/core for sinw solar cell applications.  - nanoscale research letters.  8(1):Art no.466. 

ahmad fudholi, kamaruzzaman sopian, mohd yusof othman, mohd hafidz ruslan, b. bakhtyar.  (2013).  energy analysis and improvement potential of finned double-pass solar collector.  - energy conversion and management.  75:234-240. 

hyder h. balla, shahrir abdullah, wan mohd faizal wan mahmood, rozli zulkifli, kamaruzaman sopian.  (2013).  numerical study of the enhancement of heat transfer for hybrid cuo-cu nanofluids flowing in a circular pipe.  - journal of oleo science.  62(7):533-539. 

hyder h. balla, shahrir abdullah, wan mohd faizal wan mahmood, m. abdul razzaq, rozli zulkifli, kamaruzaman sopian.  (2013).  modelling and measuring the thermal conductivity of multi-metallic zn/cu nanofluid.  - research on chemical intermediates.  39(6):2801-2815. 

m.a. islam, q. huda, m.s. hossain, m.m. aliyu, m.r. karim, k. sopian, n. amin.  (2013).  high quality 1 um thick cdte absorber layers grown by magnetron sputtering for solar cell application.  - current applied physics.  13(Supp.2):S115-S121. 

m.a. islam , m.s. hossain, m.m. aliyu, m.r. karim , t. razykov, k. sopian, n. amin.  (2013).  effect of cdcl2 treatment on structural and electronic property of cdte thin films deposited by magnetron sputtering.  - thin solid films.  546:367-374. 

f. hussain, m.y.h. othman, k. sopian, b. yatim, h. ruslan, h. othman.  (2013).  design development and performance evaluation of photovoltaic/thermal(pv/t) air base solar collector.  - renewable and sustainable energy reviews.  25:431-441. 

b bakhtyar, a zaharim, k sopian, o saadatian, s moghimi.  (2013).  quality housing in affordable price for malaysian low income.  - wseas transactions on environment and development.  9(2):184-197. 

b bakhtyar, a zaharim, k sopian, s moghimi.  (2013).  housing for poor people: a review on low cost housing process in malaysia.  - wseas transactions on environment and development.  9(2):232-242. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd s. takriff, kamaruzzaman sopian.  (2013).  visible light photocatalytic activity of fe3+-doped zno nanoparticle prepared via sol-gel technique.  - chemosphere.  91(11):1604-1611. 

abduljalil a. al-abidi, sohif mat, k. sopian, m.y. sulaiman, abdulrahman th mohammad.  (2013).  numerical study of pcm solidification in a triplex tube heat exchanger with internal and external fins.  - international journal of heat and mass transfer.  61:684-695. 

a.a. lahimer, m.a. alghoul, fadhil yousif, t.m. razykov, n. amin, k. sopian.  (2013).  research and development aspects on decentralized electrification options for rural household.  - renewable and sustainable energy reviews.  24:314-324. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd s. takriff, kamaruzzaman sopian.  (2013).  photocatalytic degradation of chlorophenols under direct solar radiation in the presence of zno catalyst.  - research on chemical intermediate.  1981-1996. 

ranj sirwan, m.a. alghoul, k. sopian, yusoff ali, jasim abdulateef.  (2013).  evaluation of adding flash tank to solar combined ejector-absorption refrigeration system.  - solar energy.  91:283-296. 

masita mohammad, thushara kandaramath hari, zahira yaakob, yogesh chandra sharma, kamaruzzaman sopian.  (2013).  overview on the production of paraffin based-biofuels via catalytic hydrodeoxygenation.  - renewable and sustainable energy reviews.  121-132. 

tamer khatib, azah mohamed, k. sopian.  (2013).  a review of photovoltaic systems size optimization techniques.  - renewable and sustainable energy reviews.  22:454-465. 

hussein a. kazem, tamer khatib, k. sopian.  (2013).  sizing of a standalone photovoltaic/battery system at minimum cost for remote housing electrification in sohar, oman.  - energy and buildings.  61:108-115. 

nurulkamal masseran, ahmad mahir razali, kamarulzaman ibrahim, azami zaharim & kamaruzzaman sopian.  (2013).  application of the single imputation method to estimate missing wind speed data in malaysia.  - research journal of applied sciences, engineering and technology.  6(10):1780-1784. 

m.a. shameri, m.a. alghoul, omkalthum elayeb, m. fauzi m. zain, m.s. alrubaih, halizawati amir, k. sopian.  (2013).  daylighting characterstics of existing double-skin facade office buildings.  - energy and buildings.  59:279-286. 

ahmad fudholi, mohd yusof othman, mohd hafidz ruslan, and kamaruzzaman sopian.  (2013).  drying of malaysian capsicum annuum l. (red chili) dried by open and solar drying.  - international journal of photoenergy.  Article no.167895. 

yousef a. eltbaakh, m.h. ruslan, m.a. alghoul, m.y. othman, k. sopian.  (2013).  measurements of spectral-band solar irradiance in bangi, malaysia.  - solar energy.  89:62-80. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  survey of hybrid liquid desiccant air conditioning systems.  - renewable and sustainable energy reviews.  20:186-200. 

abduljalil a. al-abidin, sohif bin mat, k. sopian, m.y. sulaiman, abdulrahman th. mohammed.  (2013).  cfd applications for latent heat thermal energy storage: a review.  - renewable and sustainable energy reviews.  20:353-363. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd s. takriff, kamaruzzaman sopian.  (2013).  optimization of process parameters using d-optimal design for synthesis of zno nanoparticles via solgel technique.  - journal of industrial and engineering chemistry.  99-105. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad, mohd s. takriff, kamaruzzaman sopian.  (2013).  the effect of process parameters on the size of zno nanoparticles synthesized via the sol-gel technique.  - journal of alloys and compounds.  550:63-70. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  implementation and validation of an artificial neural network for predicting the performance of a liquid desiccant dehumidifier.  - energy conversion and management.  67:240-250. 

mohammad h. yazdi, shahrir abdullah, ishak hashim & kamaruzzaman sopian.  (2013).  reducing entropy generation in mhd fluid flow over open parallel microchannels embedded in a micropatterned permeable surface.  - entropy.  15(11):4822-4843. 

mohamed gabbasa, kamaruzzaman sopian.  (2013).  potential and status of the renewable energy technologies for sustainable energy development in organization of islamic conference (oic) countries.  - wseas transactions on environment and development.  4(9):253-263. 

s.m.c. fairuz m.y. sulaiman c.h. lim s. mat b. ali o. saadatian m.h. ruslan e. salleh k. sopian.  (2013).  long term strategy for electricity generation in peninsular malaysia - analysis of cost and carbon footprint using message.  - energy policy.  62:493-502. 

p. ooshaksaraei, k. sopian, r. zulkifli, and saleem h. zaidi.  (2013).  characterization of air-based photovoltaic thermal panels with bifacial solar cells.  - international journal of photoenergy.  2013:Article ID 978234. 

aghil shavalipour, mir hamed hakemzadeh, k. sopian, sallehuddin mohamed haris, and saleem h. zaidi.  (2013).  new formulation for the estimation of monthly average daily solar irradiation for the tropics: a case study of peninsular malaysia.  - international journal of photoenergy.  2013:Article ID 174671. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  artificial neural network analysis of liquid desiccant regenerator performance in a solar hybrid air-conditioning system.  - sustainable energy technologies and assessments.  4:11-19. 

b. bakhtyar, k. sopian, m.y. sulaiman, s.a. ahmad.  (2013).  renewable energy in five south east asian countries: review on electricity consumption and economic growth.  - renewable and sustainable energy reviews.  26:506-514. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  artificial neural network analysis of liquid desiccant dehumidifier performance in a solar hybrid air-conditioning system.  - applied thermal engineering.  59:389-398. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  survey of liquid desiccant dehumidification system based on integrated vapor compression technology for building applications.  - energy and buildings.  62:1-14. 

b. bakhtyar, k. sopian, a. zaharim, e. salleh, c.h. lim.  (2013).  potentials and challenges in implementing feed-in tariff policy in indonesia and the philippines.  - energy policy.  60:418-423. 

abdulrahman th. mohammad, sohif bin mat, m.y. sulaiman, k. sopian, abduljalil a. al-abidi.  (2013).  historical review of liquid desiccant evaporation cooling technology.  - energy and buildings.  67:22-33. 

mohamed gabbasa, kamaruzzaman sopian, zahira yaakob, m. reza faraji zonooz , ahmad fudholi, nilofar asim.  (2013).  review of the energy supply status for sustainable development in the organization of islamic conference.  - renewable and sustainable energy reviews.  28:18-28. 

ranj sirwan, m.a. alghoul, k. sopian, yusoff ali.  (2013).  thermodynamic analysis of an ejector-flash tank-absorption cooling system.  - applied thermal engineering.  58:85-97. 

ahmad fudholi, kamaruzzaman sopian, mohd hafidz ruslan, mohd yusof othman.  (2013).  performance and cost benefits analysis of double-pass solar collector with and without fins.  - energy conversion and management.  76:8-19. 

mohd yusof othman, adnan ibrahim, goh li jin, mohd hafidz ruslan, kamaruzzaman sopian.  (2013).  photovoltaic-thermal (pv/t) technology - the future energy technology.  - renewable energy.  171-174. 

mohd. yusof hj. othman, faridah hussain, kamaruzzman sopian, baharuddin yatim & hafidz ruslan.  (2013).  performance study of air-based photovoltaic-thermal (pv/t) collector with different designs of heat exchanger.  - sains malaysiana.  42(9):1319-1325. 

md. akhtaruzzaman, h.n.m. ekramul mahmud, ashraful islam, ahmedei shafei, mohammed rezaul karim , kamaruzzaman sopian , liyuan han , yoshinori yamamoto.  (2013).  simple indoline based donoreacceptor dye for high efficiency dye-sensitized solar cell.  - materials chemistry and physics.  142(1):82-86. 

ali hajiah, tamer khatib, k. sopian, and m. sebzali.  (2012).  performance of grid-connected photovoltaic system in two sites in kuwait.  - international journal of photoenergy.  Art no.178175. 

omidreza saadatian, lim chin haw, k. sopian, m.y. sulaiman.  (2012).  review of windcatcher technologies.  - renewable and sustainable energy reviews.  16:1477-1495. 

lim chin haw, omidreza saadatian, m.y.sulaiman, sohif mat, kamaruzzaman sopian.  (2012).  empirical study of a wind-induced natural ventilation tower under hot and humid climatic conditions.  - energy and buildings.  52:28-38. 

nilofar asim, kamaruzzaman sopian, shideh ahmadi, kasra saeedfar, m.a. alghoul, omidreza saadatian, saleem h. zaidi.  (2012).  a review on the role of materials science in solar cells.  - renewable and sustainable energy reviews.  16(8):5834-5847. 

suhaila sepeai, m. y. sulaiman, kamaruzzaman sopian, and saleem h. zaidi.  (2012).  surface passivation studies on n+pp+ bifacial solar cell.  - international journal of photoenergy.  2012:Article ID 278764. 

b.r. elhab, k. sopian, sohif mat, ch lim, m.y. sulaiman, m.h. ruslan, omidreza saadatian.  (2012).  optimizing tilt angles and orientations of solar panels for kuala lumpur, malaysia.  - scientific research and essays.  7(4):3758-3765. 

puvaneswaran chelvanathan, mohammad istiaque hossain, jamilah husna, mohammad alghoul, kamaruzzaman sopian, and nowshad amin.  (2012).  effects of transition metal dichalcogenide molybdenum disulfide layer formation in copper-zinc-tint-sulfur solar cells from numerical analysia.  - japanese journal of applied physics.  51:321-324. 

yousef a. eltbaakh, m.h. ruslan, m.a. alghoul, m.y. othman, k. sopian.  (2012).  issues concerning atmospheric turbidity indices.  - renewable and sustainable energy reviews.  16(8):6285-6294. 

omidreza saadatian, k. sopian, c.h. lim, nilofar asim, m.y. sulaiman.  (2012).  trombe walls: a review of opportunities and challenges in research and development.  - renewable and sustainable energy reviews.  16(1):6340-6351. 

a.a. lahimer, m.a. alghoul, k. sopian, nowshad amin, nilofar asim, m.i. fadhel.  (2012).  research and development aspects of pico-hydro power.  - renewable and sustainable energy reviews.  16:5861-5878. 

abduljalil a. al-abidi, sohif bin mat, k. sopian, m.y. sulaiman, c.h. lim, abdulrahman th.  (2012).  review of thermal energy storage for air conditioning systems.  - renewable and sustainable energy reviews.  16:5802-5819. 

s. misha, s.mat, m.h.ruslan, k. sopian.  (2012).  review of solid/liquid desiccant in the drying applications and its regeneration methods.  - renewable and sustainable energy reviews.  16:4686-4707. 

t. m. razykov, n. amin, m. a. alghoul, b. ergashev, c. s. ferekides, y. goswami, m. k. hakkulov, k. m. kouchkarov, k. sopian, m. y. sulaiman, and h. s. ullal.  (2012).  effect of the composition on physical properties of cdte absorber layer fabricated by chemical molecular beam deposition for use in thin film solar cells.  - journal of applied physics.  112(2):Art no.023517. 

rozli zulkifli, ali ahmed gitan, kamaruzzaman sopian, shahrir abdullah.  (2012).  multiple pulsating jets mechanism for heat transfer enhancement.  - international review of mechanical engineering.  6(3):654-658. 

tamer khatib, azah mohamed, k. sopian and marvan mahmoud.  (2012).  an iterative method for calculating the optimum size of inverter in pv systems for malaysia.  - electrical review.  88(4):281-284. 

tamer khatib, azah mohamed, k. sopian, m. mahmoud.  (2012).  estimating ambient temperature for malaysia using generalized regression neural network.  - international journal of green energy.  9(3):195-201. 

tamer khatib, azah mohamed, k. sopian.  (2012).  a review of solar energy modeling techniques.  - renewable and sustainable energy reviews.  16(5):2864-2869. 

m. m. aliyu, m. a. islam, n. r. hamzah, m. r. karim, m. a. matin, k. sopian, and n. amin.  (2012).  recent developments of flexible cdte solar cells on metallic substrates: issues and prospects.  - international journal of photoenergy.  2012:Article ID 351381. 

ahmad fudholi, mohd hafidz ruslan, mohd yusof othman, mohd syahriman mohd azmi, azami zaharim and kamaruzzaman sopian..  (2012).  drying of palm oil fronds in solar dryer with finned double-pass solar collectors..  - wseas transactions on heat and mass transfer.  105-114. 

tamer khatib, azah mohamed, k. sopian, and m.mahmoud.  (2012).  a new approach for optimal sizing of standalone photovoltaic systems.  - international journal of photoenergy.  2012:Art. no 391213. 

hyder h. balla, shahrir abdullah, rozli zulkifli, wan mohd faizal and kamaruzzaman sopian.  (2012).  effect of oxides nanoparticle materials on the pressure loss and heat transfer of nanofluids in circular pipes.  - journal of applied sciences.  12(13):1396-1401. 

mohd. moniruzzaman, md. rafiqul islam, kamaruzzaman sopian and saleem h. zaidi.  (2012).  wideband patch antenna design using selective particle swarm optimization.  - journal of applied sciences research.  8(1):431-433. 

tamer khatib, azah mohamed, k. sopian.  (2012).  optimization of a pv/wind micro-grid for rural housing electrification using a hybrid iterative/genetic algorithm: case study of kuala terengganu, malaysia.  - energy and buildings.  47:321-331. 

tamer khatib, azah mohamed. m. mahmoud, k. sopian.  (2012).  a new approach for meteorological variables prediction at kuala lumpur, malaysia, using artificial neural networks: application for sizing and maintaining photovoltaic systems.  - journal of solar energy engineering, transactions of the asme.  134(2):art. no. 021005. 

m. i. kabir, zahari ibarahim, m. alghoul, kamaruzzaman sopian, md. rezaul karim, nowshad amin.  (2012).  bandgap optimization of absorber layers in amorphous silicon single and multijunction junction solar cells.  - chalcogenide letters.  9(1):51-59. 

zeinab abdallah m. elhassan, muhammad fauzi mohd zain, kamaruzzaman sopian and a. a. abass.  (2012).  building integrated photovoltaics (bipv) module in urban housing in khartoum: concept and design considerations.  - international journal of the physical sciences.  7(3):487-494. 

mohd. yusof hj. othman, ahmad fudholi, kamaruzzaman sopian, mohd. hafidz ruslan & muhammad yahya.  (2012).  analisis kinetik pengeringan rumpai laut gracilaria changii menggunakan sistem pengering suria.  - sains malaysiana.  41(2):245-252. 

salwan dihrab, tamer khatib, kamaruzzaman sopian, habeeb al-ani, saleem h. zaidi.  (2012).  on the performance of hybrid pv/unitized regenerative fuel cell system in the tropics.  - international journal of photoenergy.  2012:Article ID 942784. 

a. azraf, shahrir abdullah, kamaruzzaman sopian.  (2012).  cooling profile of beryllium filter for small angle neutron scattering cryostat using cfd.  - international review of mechanical engineering.  6(2):251-255. 

tamer khatib, azah mohamed, and k. sopian.  (2012).  a software tool for optimal sizing of pv systems in malaysia.  - modelling and simulation in engineering.  Article ID:969248: 1-12. 

mohammed ikbal kabir, seyed a. shahahmadi, victor lim, saleem zaidi, kamaruzzaman sopian, and nowshad amin.  (2012).  amorphous silicon single-junction thin-film solar cell exceeding 10% efficiency by design optimization.  - international journal of photoenergy.  2012:Article ID 460919. 

mohd. moniruzzaman, ghulam muhammad, asrar ul haque, md. rafiqul islam, kamaruzzaman sopian, saleem h. zaidi.  (2012).  application of partial grounding technique for ultra wide band antenna.  - advances in natural and applied sciences.  6(2): 230-234. 

yousef a. eltbaakh, m.h. ruslan, m.a. alghoul, m.y. othman, k. sopian & t.m. razykov.  (2012).  solar attenuation by aerosols: an overview.  - renewable and sustainable energy reviews.  16(6):4264-4276. 

shahril irwan sulaiman, titik khawa abdul rahman, ismail musirin, sulaiman shaari, kamaruzzaman sopian.  (2012).  an intelligent method for sizing optimization in grid-connected photovoltaic system.  - solar energy.  86(7):2067-2082. 

mohammad h. yazdi, shahrir abdullah, ishak hashim and kamaruzzaman sopian.  (2012).  entropy generation analysis of open parallel microchannels embedded within a permeable continuous moving surface: application to magnetohydrodynamics (mhd).  - entropy.  14(1):1-23. 

muneer m. ba-abbad, abdul amir h. kadhum, abu bakar mohamad ,mohd s. takriff, kamaruzzaman sopian.  (2012).  synthesis and catalytic activity of tio2 nanoparticles for photochemical oxidation of concentrated chlorophenols under direct solar radiation.  - international journal of electrochemical science.  4871-4888. 

tamer khatib, azah mohamed, k. sopian and m. mahmoud.  (2012).  solar energy prediction for malaysia using artificial neural networks.  - international journal of photoenergy.  2012:Article Id 419504. 

kamaruzzaman sopian, mohd yusof othman, saleem h. zaidi, and nowshad amin.  (2012).  advanced solar assisted drying systems for marine and agricultural products.  - journal of mechanical engineering.  9-14. 

tamer khatib, k. sopian, azah mohamed, mohd zamri ibrahim.  (2012).  sizing of a wind charger at minimum cost for remote housing electrification: a case study for nine coastal sites in malaysia.  - energy and buildings.  51:185-190. 

tamer khatib, azah mohamed, k. sopian, and m. mahmoud.  (2012).  assessment of artificial neural networks for hourly solar radiation prediction.  - international journal of photoenergy.  2012:ID 946890. 

ahmad fudholi, kamaruzzaman sopian, mohd hafidz ruslan,
mohd. yusof othman and muhammad yahya.  (2011).  thermal efficiency of double pass solar collector with longitudinal fins absorbers.  - american journal of applied sciences.  8(3):254-260. 

shahrul anizan, cheow siu leong, khairymaza lee yusri,
nowshad amin, saleem zaidi and kamaruzzaman sopian.  (2011).  the effect of rapid thermal annealing towards the performance of screen-printed si solar cell.  - american journal of applied sciences.  8(3):267-270. 

a.m. muzathik, w.b.w. nik, m.z. ibrahim, k.b. samo, k. sopian and m.a. alghoul.  (2011).  daily global solar radiation estimate based on sunshine hours.  - international journal of mechanical and materials engineering.  6(1):75-80. 

md. sharafat hossain, nowshad amin, m.a. matin, m. mannir aliyu, takhir razykov, and kamaruzzaman sopian.  (2011).  a numerical study on the prospects of high efficiency ultra thin znxcd1-xs/cdte solar cell.  - chalcogenide letters.  8(4):263-U59. 

zeinab abdallah m. elhassan, muhammad fauzi mohd zain, kamaruzzaman sopian and arafa awadalla.  (2011).  design of building integrated photovoltaic system for a low energy residences in hot dry climatic conditions in khartoum.  - research journal of applied sciences.  6(2):110-115. 

zeinab abdallah m. elhassan, muhammad fauzi mohd zain, kamaruzzaman sopian and arafa awadalla.  (2011).  output energy of photovoltaic module directed at optimum slope angle in kuala lumpur, malaysia.  - research journal of applied sciences.  6(2):104-109. 

zeinab abdallah m. elhassan, muhammad fauzi mohd zain, kamaruzzaman sopian and arafa awadalla.  (2011).  design of hybrid power system of renewable energy for domestic used in khartoum.  - journal of applied sciences.  11(12):2270-2275. 

s. sadrzadehrafiei, k. sopian, s. mat, ch. lim.  (2011).  determining the cost saving and emission reduction of optimum insulation thickness and air gap for building walls.  - australian journal of basic and applied sciences.  5(12):2287-2294. 

mohammed i. kabir, zahari ibarahim, kamaruzzaman sopian and nowshad amin.  (2011).  a review on progress of amorphous and microcrystalline silicon thin-film solar cells.  - recent patents on electrical engineering.  4(1):50-62. 

dalia attan, m.a. alghoul, b.b. saha, j. assadeq, k. sopian.  (2011).  the role of activated carbon fiber in adsorption cooling cycles.  - renewable and sustainable energy reviews.  15:1708-1721. 

mohd. moniruzzaman, md. rafiqul islam, kamaruzzaman sopian, saleem h. zaidi.  (2011).  cubic spline based particle swarm optimization for microstrip antennas.  - australian journal of basic and applied sciences.  5(12):804-807. 

m.s. hossain, m.m. aliyu, m.a. matin, m.a. islam, m.r. karim, t. razykov, k. sopian and n. amin.  (2011).  effect of different bsr in front and back contacts for znxcd1-xs/cdte solar cell.  - international journal of mechanical and materials engineering.  6(3):350-355. 

mohammad h. yazdi, shahrir abdullah, ishak hashim and kamaruzzaman sopian.  (2011).  effects of viscous dissipation on the slip mhd flow and heat transfer past a permeable surface with convective boundary conditions.  - energies.  4: 2273-2294. 

yousef a. eltbaakh, m.h. ruslan, m.a. alghoul, m.y. othman, k. sopian, m.i. fadhel.  (2011).  measurement of total and spectral solar irradiance: overview of existing research.  - renewable and sustainable energy reviews.  15:1403-1426. 

m.a. shameri, m.a. alghoul, k. sopian, m. fauzi m. zain, omkalthum elayeb.  (2011).  perspectives of double skin facade systems in buildings and energy saving.  - renewable and sustainable energy reviews.  15(3):1468-1475. 

mahmud m. alkilani, k. sopian, m.a. alghoul, m. sohif, m.h. ruslan.  (2011).  review of solar air collectors with thermal storage units.  - renewable and sustainable energy reviews.  15:1476-1490. 

nilofar asim and kamaruzzaman sopian.  (2011).  perspective on nanomaterials in solar cell.  - international journal of nanoscience.  10(6):1197-1208. 

li jin goh, mohd yusof othman, sohif mat, hafidz ruslan, kamaruzzaman sopian.  (2011).  review of heat pump systems for drying application.  - renewable and sustainable energy reviews.  15:4788-4796. 

kamaruzzaman sopian, baharuddin ali, nilofar asim.  (2011).  strategies for renewable energy applications in the organization of islamic conference (oic) countries.  - renewable and sustainable energy reviews.  15:4706- 4725. 

tamer khatib, a. mohamed, k. sopian, m. mahmoud.  (2011).  optimal sizing of building integrated hybrid pv/diesel generator system for zero load rejection for malaysia.  - energy and buildings.  43:3430-3435. 

f. hussain, m. y. h. othman, b. yatim, h. ruslan, k. sopian, z. anuar, s. khairuddin.  (2011).  fabrication and irradiance mapping of a low cost solar simulator for indoor testing of solar collector.  - journal of solar energy engineering.  133(4):Art. no. 044502. 

tamer khatib, azah mohamed, marwan mahmoud, k sopian.  (2011).  modeling of daily solar energy on a horizontal surface for five main sites in malaysia.  - international journal of green energy.  8(8):795-819. 

r. daghigh, m.h. ruslan, k. sopian.  (2011).  advances in liquid based photovoltaic/thermal (pv/t) collectors.  - renewable and sustainable energy reviews.  15(8):4156-4170. 

ronak daghigh , adnan ibrahim, goh li jin, mohd hafidz ruslan, kamaruzzaman sopian.  (2011).  predicting the performance of amorphous and crystalline silicon based photovoltaic solar thermal collectors.  - energy conversion and management.  52: 1741-1747. 

m.i. fadhel, k.sopian, w.r.w.daud, m.a. alghoul.  (2011).  review on advanced of solar assisted chemical heat pump dryer for agriculture produce.  - renewable and sustainable energy reviews.  15:1152-1168. 

adnan ibrahim, mohd yusof othman, mohd hafidz ruslan, sohif mat, kamaruzzaman sopian.  (2011).  recent advances in flat plate photovoltaic/thermal (pv/t) solar collectors.  - renewable and sustainable energy reviews.  352-365. 

p. poovanaesvaran, m.a. alghoul, k. sopian, n. amin, m.i. fadhel, m. yahya.  (2011).  design aspects of small-scale photovoltaic brackish water reverse osmosis (pv-bwro) system.  - desalination and water treatment.  27:210-223. 

ronak daghigh, adnan ibrahim, goh li jin, mohd hafidz ruslan, kamaruzzaman sopian.  (2011).  predicting the performance of amorphous and crystalline silicon based photovoltaic solar thermal collectors.  - energy conversion and management.  1741-1747. 

mahmud m. alkilani, kamaruzzaman sopian and sohif mat.  (2011).  fabrication and experimental investigation of pcm capsules integrated in solar air heater.  - american journal of environmental sciences.  7(6):542-546. 

arfidian rachman, kamaruzzaman sopian, sohif mat and muhammad yahya.  (2011).  feasibility study and performance analysis of solar assisted desiccant cooling technology in hot and humid climate.  - american journal of environmental sciences.  7(3):207-211. 

ahmad fudholi, kamaruzzaman sopian, mohd hafidz ruslan,
mohd. yusof othman and muhammad yahya.  (2011).  analytical and experimental studies on the thermal efficiency of the double-pass solar air collector with finned absorber.  - american journal of applied sciences.  8(7):716-723. 

m.h. yazdi, s. abdullah, i. hashim, k. sopian.  (2011).  slip mhd liquid flow and heat transfer over non-linear permeable stretching surface with chemical reaction.  - international journal of heat and mass transfer.  54(15-16):3214-3225. 

m. a. matin, nowshad amin, azami zaharim and kamaruzzaman sopian.  (2010).  a study towards the possibility of ultra thin cds/cdte high efficiency solar cells from numerical analysis.  - wseas transactions on environment and development.  8(6): 571-580. 

m.i. fadhel, k. sopian, w.r.w. daud.  (2010).  performance analysis of solar-assisted chemical heat-pump dryer.  - solar energy.  84:1920-1928. 

ronak daghigh, mohd hafidz ruslan, mohamad yusof sulaiman, kamaruzzaman sopian.  (2010).  review of solar assisted heat pump drying systems for agricultural and marine products.  - renewable and sustainable energy reviews.  14:2564-2579. 

m.i. kabir, zahari ibrahim, kamaruzzaman sopian, nowshad amin.  (2010).  effect of structural variations in amorphous silicon based single and multi-junction solar cells from numerical analysis.  - solar energy materials & solar cells.  94:1542-1545. 

tamer t.n. khatib, a. mohamed, n. amin, k. sopian.  (2010).  an efficient maximum power point tracking controller for photovoltaic systems using new boost converter design and improved control algorithm.  - wseas transactions on power systems.  5(2):53-63. 

a. r. ismail, m. y. m. yusof, k. sopian, m. r. a. rani, z. k. m. makhbul and n.k. makhtar.  (2010).  optimizing humidity level and illuminance to enhance worker performance in an automotive industry.  - journal of applied sciences.  10(14):1389-1396. 

goh li jin, adnan ibrahim, yee kim chean, roonak daghigh, hafidz ruslan, sohif mat, mohd. yusof othman and kamaruzzaman sopian.  (2010).  evaluation of single-pass photovoltaic-thermal air collector with rectangle tunnel absorber.  - american journal of applied sciences.  7(2):277-282. 

dihrab s.s., sopian k..  (2010).  electricity generation of hybrid pv/wind systems in iraq.  - renewable energy.  35(6):1303-1307. 

r. zulkifli, k. sopian, s. abdullah, m. s. takriff.  (2010).  analysis of pulse air jet flow profiles.  - international review of mechanical engineering.  4(5):495-501. 

nowshad amin, m. a. matin, m. m. aliyu, m. a. alghoul, m. r. karim, and k. sopian.  (2010).  prospects of back surface field effect in ultra-thin high-efficiency cds/cdte solar cells from numerical modeling.  - international journal of photoenergy.  2010:1-8. 

a. fudholi, k. sopian, m.h. ruslan, m.a. alghoul, m.y. sulaiman.  (2010).  review of solar dryers for agricultural and marine products.  - renewable and sustainable energy reviews.  14(1):1-30. 

a.r. ismail, n. jusoh, r. zulkifli, k. sopian and b.m. deros.  (2009).  thermal comfort assessment: a case study at malaysian automotive industry.  - american journal of applied sciences.  6(8):1495-1501. 

f. jahanshah , k. sopian, y. othman, h.r. fallah.  (2009).  pn junction depth impact on short circuit current of solar cell.  - solar energy.  83(9):1629-1633. 

a. r. ismail, y. c. soon, s. abdullah, r. zulkifli, k. sopian, m.n.a. rahman.  (2009).  reverse engineering in fabrication of piston crown.  - european journal of scientific research.  29(1):136-146. 

azami zaharim, siti khadijah najid, ahmad mahir razali, kamaruzzaman sopian.  (2009).  wind speed analysis in the east coast of malaysia.  - european journal of scientific research.  32(2):208-215. 

m. ibrahim, k. sopian, w. r. w. daud, m. a. alghoul, m. yahya, m. y. sulaiman, and a. zaharim.  (2009).  solar chemical heat pump drying system for tropical region.  - wseas transactions on environment and development.  5(5):404-413. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah and mohd sobri takriff.  (2009).  comparison of local nusselt number between steady and pulsating jet at different jet reynolds number.  - wseas transactions on environment and development.  5(5):384-393. 

sohif mat,kamaruzzaman sopian, mazlin mokhtar, baharuddin ali, halimaton saadiah hashim, abdul khalim abdul rashid, muhammad fauzi mohd zain, nurakmal goh abdullah.  (2009).  managing sustainable campus in malaysia - organisational approach and measures.  - european journal of social sciences.  8(2):201-214. 

mohd nizam ab rahman, ruhizan mohd yasin, kamaruzzaman sopian, ahmad rasdan ismail, juhari ab razak.  (2009).  initial study on increasing productivity of orang asli in malaysia.  - european journal of social sciences.  8(3):441-448. 

a. g. hussin, s. f. hassan, y. z. zubairi, a. zaharim, k. sopian.  (2009).  an approximation of error concentration parameter for simultaneous circular functional relationship model.  - european journal of scientific research.  27(2):258-263. 

azami zaharim, mokhtar shaharuddin, mohd. jailani mohd. nor, othman a. karim, kamaruzzaman sopian.  (2009).  relationships between airborne particulate matter and meteorological variables using non-decimated wavelet transform.  - european journal of scientific research.  27(2):308-312. 

a.a. shariff, a. zaharim, k. sopian.  (2009).  the comparison logit and probit regression analyses in estimating the strength of gear teeth.  - european journal of scientific research.  24(4):548-553. 

m.a. alghoul, m.y. sulaiman, k. sopian, m. yahya, and a. zaharim.  (2009).  experimental and simulation study on malaysian activated carbon as adsorbent in a dual purpose solar system.  - wseas transactions on environment and development.  5(3):331-339. 

kamaruzzaman sopian, mohd zamri ibrahim, wan ramli wan daud, mohd yusof othman, baharuddin yatim, nowshad amin.  (2009).  performance of a pv-wind hybrid system for hydrogen production.  - renewable energy.  34(8):1973-1978. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah, mohd sobri takriff.  (2009).  comparison of local nusselt number for steady and pulsating circular jet at reynolds number of 16000.  - european journal of scientific research.  29(3):369-378. 

salwan s. dihrab, k. sopian, m.a. alghoul, m.y. sulaiman.  (2009).  review of the membrane and bipolar plates materials for conventional and unitized regenerative fuel cells.  - renewable and sustainable energy reviews.  13(6-7):1663-1668. 

j.m. abdulateef, k. sopian, m.a. alghoul, m.y. sulaiman.  (2009).  review on solar-driven ejector refrigeration technologies.  - renewable and sustainable energy reviews.  13(6-7):1338-1349. 

a. lennie, h. abdullah, s.m.mustaza, k.sopian.  (2009).  photovoltaic properties of si3n4 layer on silicon solar cell using silvaco software.  - european journal of scientific research.  29(4):447-453. 

mustafa ibrahim, k. sopian and w.r.w. daud.  (2009).  study of the drying kinetics of lemon grass.  - american journal of applied sciences.  6(6):1070-1075. 

a. r. ismail, m. r .a. rani, z. k. m. makhbul, k. sopian, m.m. tahir, j.a. ghani, c. meier.  (2009).  optimization of environmental factors: a study at malaysian automotive industry.  - european journal of scientific research.  27(4):500-509. 

a. r. ismail. n. jusoh, k. sopian, i.m.s. usman, r. zulkifli, m.n.a. rahman.  (2009).  thermal comfort assessment: a study at malaysia car manufacturer.  - european journal of scientific research.  27(4):510-523. 

m.h. yazdi, s. abdullah, i. hashim, k. sopian, a. zaharim.  (2009).  entropy generation analysis of liquid fluid past embedded open parallel microchannels within the surface.  - european journal of scientific research.  28(3):462-470. 

m. m. alkilani, k. sopian, sohif mat, m. a. alghoul.  (2009).  output air temperature prediction in a solar air heater integrated with phase change material.  - european journal of scientific research.  27(3):334-341. 

sulaiman shaari, kamaruzzaman sopian, nowshad amin and mohd nizan kassim.  (2009).  the temperature dependence coefficients of amorphous silicon and crystalline photovoltaic modules using malaysian field test investigation.  - american journal of applied sciences.  6(4):586-593. 

f. jahanshah, k. sopian, s.h. zaidi, m.y. othman, n. amin and n. asim.  (2009).  modeling the effect of p-n junction depth on the output of planer and rectangular textured solar cells.  - american journal of applied sciences.  6(4):667-671. 

r daghigh, nm adam, k sopian and bb sahari.  (2009).  thermal comfort of an air-conditioned office through different windows-door opening arrangements.  - building services engineering research and technology.  30(1):49-63. 

rozli zulkifli, kamaruzzaman sopian, shahrir abdullah, mohd sobri takriff.  (2009).  correlations of percentage increases in local nusselt number with radial distance for steady and pulsating jet.  - international review of mechanical engineering.  3(5): 613-618. 

mohammad reza faraji zonooz, z.m. nopiah, ahmad mohd.yusof, kamaruzzaman sopian.  (2009).  a review of markal energy modeling.  - european journal of scientific research.  26(3):352-361. 

roonak daghigh, kamaruzzaman sopian, jalil moshtagh.  (2009).  thermal comfort in naturally ventilated office under varied opening arrangements: objective and subjective approach.  - european journal of scientific research.  26(2):260-276. 

baharuddin ali, kamaruzzaman sopian, mohamad al ghoul, mohd yusof othman, azami zaharim, ahmad mahir razali.  (2009).  economics of domestic solar hot water heating systems in malaysia.  - european journal of scientific research.  26(1):20-28. 

baharuddin ali, kamaruzzaman sopian, mohdazhar abd. rahman, mohd yusof othman, azami zaharim, ahmad mahir razali.  (2009).  hybrid photovoltaic diesel system in a cable car resort facility.  - european journal of scientific research.  26(1):13-19. 

azami zaharim, ahmad mahir razali, rozaimah zainal abidin, kamaruzzaman sopian.  (2009).  fitting of statistical distributions to wind speed data in malaysia.  - european journal of scientific research.  26(1):6-12. 

azami zaharim, siti meriam zahid, mohammad said zainol, ibrahim mohamed, kamaruzaman sopian.  (2009).  modeling the kuala lumpur composite index (klci).  - european journal of scientific research.  25(3):499-512. 

azami zaharim, ahmad mahir razali, tee pei gim, kamaruzzaman sopian.  (2009).  time series analysis of solar radiation data in the tropics.  - european journal of scientific research.  25(4):672-678. 

juhari ab. razak, kamaruzzaman sopian, yusoff ali, mohammad ahmed alghoul, azami zaharim, ibrahim ahmad.  (2009).  optimization of pv-wind-hydro-diesel hybrid system by minimizing excess capacity.  - european journal of scientific research.  25(4):663-671. 

a.r. ismail, m.r.a. rani, z.k.m. makhbul, k. sopian, b.m. deros.  (2009).  thermal comfort assessment and optimization of environmental factors by using taguchi method.  - american journal of applied sciences.  6(9):1731-1741. 

adnan ibrahim, m.y. othman, m.h. ruslan, m.a. alghoul, m. yahya, a. zaharim and k. sopian.  (2009).  performance of photovoltaic thermal collector (pvt) with different absorbers design.  - wseas transactions on environment and development.  321-330. 

hassan n.s.m., daud w.r.w., sopian k., sahari j..  (2009).  water management in a single cell proton exchange membrane fuel cells with a serpentine flow field.  - journal of power sources.  193(1):249-257. 

ismail a.r., manap a.h.a.a., wahab d.a., zulkifli r., makhtar n.k., sopian k..  (2009).  concurrent engineering approach in designing pressure vessel.  - european journal of scientific research.  30(2):245-252. 

adnan ibrahim, goh li jin, roonak daghigh, mohd huzmin mohamed salleh, mohd yusof othman, mohd hafidz ruslan, sohif mat, kamaruzzaman sopian.  (2009).  hybrid photovoltaic thermal (pv/t) air and water based solar collectors suitable for building integrated applications.  - american journal of environmental sciences.  618-624. 

alghoul m.a., poovanaesvaran p., sopian k., sulaiman m.y..  (2009).  review of brackish water reverse osmosis (bwro) system designs.  - renewable and sustainable energy reviews.  13(9):2661-2667. 

f. jahanshah, k. sopian, s.h. zaidi, m.y. othman, n. amin, n. asim.  (2009).  modeling the effect of pn junction depth on the output of planer and rectangular textured solar cells.  - american journal of applied science.  667-671. 

lim chin haw, kamaruzzaman sopian, yusof sulaiman, m. hafidz, m. yahya.  (2009).  assessment of public perception on photovoltaic application in malaysia urban residential areas using trudgill`s framework for analysis.  - european journal of social sciences.  8(4):589-603. 

m.a. alghoul, m.y. sulaiman, k. sopian, b.z. azmi.  (2009).  performance of a dual-purpose solar continuous adsorption system.  - renewable energy.  34(3):920-927. 

k. sopian, m.a. alghoul, ebrahim m. alfegi, m.y. sulaiman, e.a. musa.  (2009).  evaluation of thermal efficiency of double-pass solar collector with porous-nonporous media.  - renewable energy.  34(3):640-645. 

nowshad amin, chin wen lung, kamaruzzaman sopian.  (2009).  a practical field study of various solar cells on their performance in malaysia.  - renewable energy.  34(8):1939-1946. 

ebrahim m. ali alfegi, kamaruzzaman sopian, mohd yusof hj. othman, baharudin bin yatim.  (2009).  the effect of flow rates on the performance of finned single pass, double duct photovoltaic thermal solar air heaters.  - european journal of scientific research.  25(2):339-344. 

roonak daghigh and kamaruzzaman sopian.  (2009).  the impact of air exchange effectiveness on thermal comfort in an air-conditioned office.  - american journal of applied sciences.  6(11):1974-1981. 

adnan ibrahim, goh li jin, roonak daghigh, mohd huzmin mohamed salleh, mohd yusof othman, mohd hafidz ruslan, sohif mat and kamaruzzaman sopian.  (2009).  hybrid photovoltaic thermal (pv/t) air and water based solar collectors suitable for building integrated applications.  - american journal of environmental sciences.  5(5):618-624. 

ebrahim m. ali alfegi, kamaruzzaman sopian, mohd yusof hj othman and baharudin bin yatim.  (2009).  mathematical model of double pass photovoltaic thermal air collector with fins.  - american journal of environmental sciences.  5(5):592-598. 

mohd yusof hj othman, hafidz ruslan, kamaruzzaman sopain & goh li jin.  (2009).  kajian prestasi pengumpul suria fotovoltan-terma (pv/t) dengan plat penyerap lengkuk-v.  - sains malaysiana.  38(4):537-541. 

kamaruzzaman sopian, nowshad amin,nilofar asim,saleem h. zaidi.  (2008).  plasma implantation for emitter and localized back surface field (bsf) formation in silicon solar cells.  - european journal of scientific research.  24(3):365-372. 

salwan s. dihrab, k. sopian and a. zaharim.  (2008).  review on the unitized regenerative fuel cells materials.  - wseas transactions on environment and development.  4(12):1151-1160. 

zuhairuse md darus, siti nurhidayah abdul manan, nor atikah hashim, roslan saat, azami zaharim & zaidi omar.  (2008).  native regionalism in development of sustainable resort in malaysia.  - wseas transactions on environment and development.  4(12):1109-1119. 

baharuddin ali, kamaruzzaman sopian, chan hoy yen, sohif mat, azami zaharim.  (2008).  key success factors in implementing renewable energy programme in malaysia.  - wseas transactions on environment and development.  4(12):1141-1150. 

r. daghigh, n. m. adam, b. b. sahari, k. sopian and m. a. alghoul.  (2008).  influences of air exchange effectiveness and its rate on thermal comfort: naturally ventilated office.  - journal of building physics.  32(2):175-194. 

ayu wazira azhari, kamaruzzaman sopian, azami zaharim, mohamad al ghoul.  (2008).  a new approach for predicting solar radiation in tropical environment using satellite images - case study of malaysia.  - wseas transactions on environment and development.  4(4):373-378. 

j. m. abdulateef, k. sopian and m. a. alghoul.  (2008).  optimum design for solar absorption refrigeration systems and comparison of the performances using ammonia-water, ammonia-lithium nitrate and ammonia-sodium thiocyanate solutions.  - international journal of mechanical and materials engineering.  3(1):17-24. 

kamaruzzaman sopian, azami zaharim, yusoff ali, zulkifli mohd nopiah, juhari ab. razak, nor salim muhammad.  (2008).  optimal operational strategy for hybrid renewable energy system using genetic algorithms.  - wseas transactions on mathematics.  7(4):130-140. 

m. ebrahim ali alfegi, kamaruzzaman sopian, mohd yusof hj othman and baharudin bin yatim.  (2008).  experimental investigation of single pass, double duct photovoltaic thermal (pv/t) air collector with cpc and fins.  - american journal of applied sciences.  5(7):866-871. 

kamaruzzaman sopian, nilofar asim, nowshad amin, saleem h. zaidi.  (2008).  enhancement of optical absorption in thin-film silicon solar cells in silicon-on-insulator (soi) configuration.  - european journal of scientific research.  24(3):358-364. 

a.r.ismail, m.r.a.mansor, m.j.m.nor, m.z.nuawi, r. zulkifli, m. n. ab. rahman and k. sopian.  (2008).  comparative studies and impact analysis of environmental noise modeling from malaysian industrial projects.  - wseas transactions on environment and development.  4(8):666-675. 

chan hoy yen, kamaruzzaman sopian, baharuddin ali, mazlin mokhtar.  (2008).  energy indicators for sustainable development in malaysia.  - european journal of social sciences.  6(2):213-231. 

mokhtar shaharuddin, azami zaharim, mohd. jailani mohd. nor, othman a. karim, kamaruzzaman sopian.  (2008).  application of wavelet transform on airborne suspended particulate matter and meteorological temporal variations.  - wseas transactions on environment and development.  4(2):89-98. 

zahari ibrahim, kamaruzzaman sopian, azami zaharim, m.a. ghoul and baharudin ali.  (2008).  estimation of flow rates in naturally ventilated buildings using simplified method.  - wseas transactions on environment and development.  4(1):56-65. 

mohd yusof othman, kamaruzzaman sopian.  (2008).  renewable energy education for asean.  - renewable energy.  16(1-4):1225-1230. 

m. a. alghoul, m. y. sulaiman, b.z. azmi, k sopian, and m. abdul wahab.  (2007).  review of materials for adsorption refrigeration technology.  - anti-corrosion methods and materials.  54(4):225-229. 

mohd. yusof othman, baharudin yatim, kamaruzzaman sopian and mohd. nazari abu bakar,.  (2007).  performance studies on a finned double-pass photovoltaic-thermal (pv/t) solar collector.  - desalination.  209, 43-55. 

mohd yusof othman, baharudin yatim, kamaruzzaman sopian and mohd nazari abu bakar.  (2007).  performance studies on a finned double-pass photovoltaic/thermal (pv/t) solar collector.  - desalination.  209(1-3):43-49. 

nowshad amin, kamaruzzaman sopian, makota konagai.  (2007).  numerical modeling of cds/cdte and cds/cdte/znte solar cells as a function of cdte thickness.  - solar energy materials and solar cells.  91(13):1202-1208. 

ebrahim m. ali alfegi, kamaruzzaman sopian, mohd yusof hj othman and baharudin bin yatim.  (2007).  comparative study on performance of single pass, double duct photovoltaic thermal collector with and without cpc.  - european journal of social sciences.  5 (3) 119-124. 

kamaruzzaman sopian and wan ramli wan daud.  (2006).  challenges and future developments in proton exchange membrane fuel cells.  - renewable energy.  31(5):719-727. 

rozli zulkifli and kamaruzzaman sopian.  (2006).  pulsating circular air jet impingement heat transfer.  - journal of institution of engineers malaysia.  67(3): 47-53.