zalita binti zainuddin;ramli bin omar;mohammad hafizuddin bin jumali;noor baa`yah bt. ibrahim;rozidawati binti awang.  (2023).  ferroelectric lead-free mn doped k0.5na0.5nbo3 piezoceramics for energy harvester application.  - .  . 

k. muhammad-najib, k. muhammad-aizat, m. h. jumali, r. abd-shukor.  (2023).  ac susceptibility and electrical properties of cr and mo substituted tl(basr)cacu2o7 tl-1212 type phase superconductors.  - applied physics a.  1-11. 

taif saad al maadhede, mohammad hafizuddin jumali, hadi j.m. al-agealy, chi chin yap, ammar daham ayada, auday h. shaban.  (2023).  effect of solvents on performance of alq3/zno solar cells: a theoretical approach.  - energy reports.  0-7. 

taif saad al maadhede, mohammad hafizuddin jumali, hadi j. al-agealy, chi chin yap, y. al-douri.  (2023).  improved performance of d149 dye-sensitized zno-based solar cell under solvents activation effect.  - the european physical journal plus.  1-8. 

man kit chong, zalita zainuddin, fatin saiha omar, mohammad hafizuddin hj jumali.  (2023).  tuning the growth of faceted na3zr2(sio4)2po4 nasicon like solid electrolyte and its effect on microstructure conductivity relationship.  - ionics.  3109-3117. 

farah liyana khairulaman, chi chin yap, mohammad hafizuddin hj jumali & nour atallah issa.  (2022).  pengoptimuman lapisan p3ht:pcbm terdop cui dalam sel suria organik jenis songsang untuk aplikasi cahaya dalam.  - sains malaysiana.  4059-4069. 

nour attallah issa, chi chin yap, sin tee tan, kai jeat hong, kam sheng lau, farah liyana khairulaman, chin hua chia, mohammad hafizuddin hj jumali, kok-keong chong.  (2022).  photovoltaic performance improvement of organic solar cell with zno nanorod arrays as electron transport layer using carbon quantum dots-incorporated photoactive layer.  - optical materials.  1-8. 

chong man kit, zalita zainuddin, mohammad hafizuddin hj jumali, fatin saiha omar.  (2022).  effects of excess na and p on ionic conductivity of na3zr2(sio4)2po4.  - 12th international fundamental science congress 2021 (ifsc2021).  84-87. 

man kit chong, zalita zainuddin, fatin saiha omar, mohammad hafizuddin hj jumali.  (2022).  na3zr2(sio4)2po4 nasicon-type solid electrolyte: influence of milling duration on microstructure and ionic conductivity mechanism.  - ceramics international.  22106-22113. 

r. abd-shukor, b. b. lee, k. muhamad-najib, n. b. ibrahim, m.h. jumali.  (2022).  ultrasonic shear velocity and attenuation in superconducting and non-superconducting smba2cu3o7-d (d= 0.16 and 0.54).  - applied physics a.  1-5. 

nor huwaida janil @ jamil, zalita zainuddin, mohammad hafizuddin hj jumali, izura izzuddin, lubna nadzir.  (2022).  tetragonal tungsten bronze phase potential in increasing the piezoelectricity of sol-gel synthesized (k0.5na0.5)1-xlixnbo3 ceramics.  - ceramics international.  9324-9329. 

khatatbeh ibtehaj, mohammad hafizuddin hj. jumali, sameer al-bati, poh choon ooi, bandar ali al-asbahi, abdullah ahmed ali ahmed.  (2022).  effect of beta-chain alignment degree on the performance of piezoelectric nanogenerator based on poly(vinylidene fluoride) nanofiber.  - macromolecular research.  172-182. 

m.d. aliff-imran, m. nur-afrina, m. j. masnita, m.h. jumali, r. abd-shukor.  (2022).  nano tin(iv) oxide addition effects on the transport and ac susceptibility parameters of bi1.6pb0.4sr2cacu2o8 superconductor.  - journal of materials science - materials in electronics.  13947-13955. 

sin tee tan, fang sheng lim, weng jon lee. hock beng lee, kai jeat hong, hind fadhil oleiwi, wei sea chang, chi chin yap, mohammad hafizuddin hj jumali.  (2021).  rational design of ordered bi/zno nanorod arrays: surface modification, optical energy band alteration and switchable wettability study.  - journal of materials research and technology.  5213-5220. 

taif saad al maadhde, mohammad hafizuddin jumali, hadi j.m.al-agealy, fatimah abdul razak, chi chin yap.  (2021).  an investigation of the fill factor and efficiency of molecular semiconductor solar cells.  - 3rd international scientific conference of alkafeel university, iscku 2021.  373-381. 

sameer al-bati, mohammad hafizuddin hj jumali, khatatbeh ibtehaj, bandar ali al-asbahi, chi chin yap.  (2021).  förster energy transfer mechanism and color tunability in three binary conjugated polymer blends.  - optical materials.  1-9. 

bandar ali al-asbahi, mohammad hafizuddin hj. jumali, m. s. alsalhi, saif m. h. qaid, amanullah fatehmulla, wafa musa mujamammi, hamid m. ghaithan.  (2021).  tuning photophysical properties of donor/acceptor hybrid thin- film via addition of sio2/tio2 nanocomposites.  - polymers.  1-13. 

sameeral-bati, mohammad hafizuddin hj jumali, ibtehaj khatatbeh, bandar ali al-asbahi..  (2021).  effect of tio2 nanoparticles on energy transfer mechanism in ternary nanocomposite conjugated polymer blend.  - optik.  1-9. 

farah liyana khairulaman, chi chin yap, mohammad hafizuddin hj jumali.  (2021).  improved performance of inverted type organic solar cell using copper iodide-doped p3ht:pcbm as active layer for low light application.  - materials letters.  1-4. 

ku noor dhaniah ku muhsen, rozana aina maulat osman, mohd sobri idris, nur izzati muhammad nadzri, mohammad hafizuddin hj jumali.  (2021).  effect of sintering temperature on (ba0. 85ca0. 15)(snxzr0. 1-xti0. 9) o3 for piezoelectric energy harvesting applications.  - ceramics international.  13107-13117. 

roslan bin abd. shukor;mohammad hafizuddin bin jumali;noor baa`yah bt. ibrahim.  (2021).  topological superconductivity in cu doped bismuth selenide and underdoped cuprates.  - .  . 

s. al-ariki, nabil a. a. yahya, suaad a. al-ansi, m.h. hj jumali, a.n. jannah, r. abd-shukor.  (2021).  synthesis and comparative study on the structural and optical properties of zno doped with ni and ag nanopowders fabricated by sol gel technique.  - scientific reports.  1-11. 

rahmat zaki auliya, poh choon ooi, rad sadri, noor azrina talik, zhi yong yau, muhammad aniq shazni mohammad hanif, boontong goh, chang fu dee, navid aslfattahi, sameer al bati, khatatbeh ibtehaj, mohammad hafzuddin hj jumali, m. f. mohd razip wee, et. al.  (2021).  exploration of 2d ti3c2 mxene for all solution processed piezoelectric nanogenerator applications.  - scientific reports.  1-13. 

sameer al-bati, mohammad hafizuddin hj. jumali, bandar ali al-asbahi, khatatbeh ibtehaj, chi chin yap, saif m. h. qaid, hamid m. ghaithan, w. a. farooq..  (2020).  improving photophysical properties of white emitting ternary conjugated polymer blend thin film via additions of tio2 nanoparticles.  - polymers.  1-13. 

khatatbeh ibtehaj, mohammad hafizuddin hj. jumali, sameeral-bati..  (2020).  a novel facile preparation method of self-polarized poly(vinylidene fluorides) nanofiber for high-performance piezoelectric nanogenerator.  - polymer.  1-8. 

a.i.a. alselawe, mhh jumali, g. gopir, m.m. anas.  (2020).  ab-initio calculations of the structural, electronic and optical properties of (cdse)2 clusters.  - sains malaysiana.  1451-1460. 

noor j ridha, firas k mohamad alosfur, mohammad hafizuddin haji jumali, s radiman.  (2020).  effect of al thickness on the structural and ethanol vapor sensing performance of zno porous nanostructures prepared by microwave-assisted hydrothermal method.  - nanotechnology.  14550. 

muhammad hafeez, bandar ali al-asbahi, mohammad hafizuddin hj. jumali, muhammad yahaya, fakharul inam, muhammad fahad bhopal, arshad s. bhatti..  (2020).  critical role of defect states on visible luminescence from zns nanostructures doped with au, mn and ga.  - materials science in semiconductor processing.  1-10. 

nor huwaida janil @ jamil, mohammad hafizuddin hj jumali, zalita zainuddin, izura izzuddin, soodkhet pojprapai.  (2019).  penentuan parameter optimum bagi rawatan pengutuban elektrik ke atas seramik-piezo (batio3) menggunakan sistem buatan sendiri.  - sains malaysiana.  425-433. 

bandar ali al-asbahi, saif m. h. qaid, mohammad hafizuddin hj jumali, mohamad saleh alsalhi, abdullah s. aldwayyan.  (2019).  long-range dipole-dipole energy transfer enhancement via addition of sio 2 /tio 2 nanocomposite in pfo/meh-ppv hybrid thin films.  - journal of applied polymer science.  47845. 

kai jeat hong, sin tee tan, kok-keong chong, chi chin yap, mohammad hafizuddin hj jumali, yueh-lin loo.  (2019).  numerical analysis with experimental verification to predict outdoor power conversion efficiency of inverted organic solar devices.  - renewable energy.  . 

kam sheng lau, siew xian chin, sin tee tan, fang sheng lim, wei sea chang, chi chin yap, mohammad hafizuddin hj jumali, sarani zakaria, soon wei chook, chin hua chia.  (2019).  silver nanowires as flexible transparent electrode: role of pvp chain length.  - journal of alloys and compounds.  165-171. 

kamarulzaman ibrahim, marlia mohd hanafiah, mohammad hafizuddin hj. jumali, mohd talib latif, nazlina ibrahim, noor hayati ahmad raso, siti aishah hasbullah.  (2019).  preface: the 2018 ukm fst postgraduate colloquium.  - the 2018 ukm fst postgraduate colloquium.  10001-60024. 

ku noor dhaniah ku muhsen, rozana aina maulat osman, mohd sobri idris, mohammad hafizuddin hj jumali & nor huwaida binti jamil..  (2019).  enhancing the dielectric properties of (ba0.85ca0.15)(snxzr0.10-xti0.90)o3 lead-free ceramics by stannum substitution.  - journal of materials science: materials in electronics.  20654-20664. 

siti aishah ahmad fuzi, mohammad hafizuddin hj jumali, bandar ali al-asbahi, saif m.h. qaid.  (2019).  photophysical and energy transfer mechanism studies of poly (9,9-di-n-octylflourenyl-2,7-diyl)/fluorol 7ga/poly [2-methoxy-5-(2-ethylhexyloxy)-1,4-phenyleneyinylene] ternary organic blend films.  - thin solid films.  90-96. 

izura izzuddin, mohammad hafizuddin hj jumali, zalita zainuddin, nor huwaida janil @ jamil.  (2019).  piezoelectric enhancements in k0.5na0.5nbo3-based ceramics via structural evolutions.  - ceramics international.  17204-17209. 

eng liang lim, chi chin yap, mohammad hafizuddin hj jumali, farah liyana khairulaman.  (2019).  solution-dispersed copper iodide anode buffer layer gives p3ht:pcbm-based organic solar cells an efficiency boost.  - journal of materials science: materials in electronics.  . 

nor fatin khairah bahanurddin, zainal arifin ahmad, julie juliewatty mohamed, mohammad hafizuddin hj jumali..  (2019).  effect of sr dopant to the knn-litasb properties.  - materials characterization using x-rays and related techniques, aip conference proceedings.  02008. 

mohd nur ikhmal salehmin, lorna jeffery minggu, wun fui mark lee, mohamad azuwa mohamed, khuzaimah arifin, mohammad hafizuddin hj. jumali, mohammad b. kassim.  (2018).  highly photoactive cu2o nanowire film prepared with modified scalable synthesis method for enhanced photoelectrochemical performance.  - solar energy materials and solar cells.  237-245. 

babul airianah othman, doris quay xia, farah hanan anuar, kamarulzaman ibrahim khairiatul mardiana jansar, lim seng joe, marlia mohd hanafiah, mohammad hafizuddin hj. jumali, mohd salmi md noorani...etc all.  (2018).  the 2017 ukm fst postgraduate colloquium.  - the 2017 ukm fst postgraduate colloquium: proceedings of the university kebangsaan malaysia, faculty of science and technology 2017 postgraduate colloquium.  -. 

lee khai ern, mohd zahid md yusoff & mohamad hasnul naim abd hamid.  (2018).  u inovasi.  - rtm.  . 

eng liang lim, chi chin yap, mohammad hafizuddin hj jumali, mohd asri mat teridi, chin hoong teh.  (2018).  a mini review: can graphene be a novel material for perovskite solar cell applications?.  - nano-micro letters.  1-12. 

noor azlan ghazali, mohd. ekhwan toriman, muhammad fauzi mohd. zain, lee khai ern, mohammad hafizuddin jumali, jalifah latip, roslinda shamsudin, mohamad azri tukimon, mohammad shah kirin zamberi, dahliya abdul kadir [and (fourteen) othes].  (2018).  instrumentation handbook: making an impact for your research.  - .  57. 

ng kim hang, lorna jeffery minggu, mark-lee wun fui, khuzaimah arifin, mohammad hafizuddin hj. jumali, mohammad b. kassim.  (2018).  a new method for the fabrication of a bilayer wo3/fe2o3 photoelectrode for enhanced photoelectrochemical performance.  - materials research bulletin.  47-52. 

yap chi chin;muhamad bin mat salleh;mohammad hafizuddin bin jumali;rozidawati binti awang.  (2018).  aplikasi nanostruktur bismut sulfida dengan pelbagai morfologi sebagai lapisan penerima elektron dalam sel suria organik jenis songsang.  - .  . 

kai jeat hong, sin tee tan, kok-keong chong, hock beng lee, riski titian ginting, fang sheng lim, chi chin yap, chun hui tan, wei sea chang, mohammad hafizuddin hj jumali.  (2018).  synergy study on charge transport dynamics in hybrid organic solar cell: photocurrent mapping and performance analysis under local spectrum.  - current applied physics.  . 

firas k mohamad alosfur , noor j ridha, mohammad hafizuddin haji jumali, s radiman.  (2018).  one-step formation of tio2 hollow spheres via a facile microwave-assisted process for photocatalytic activity.  - nanotechnology.  . 

masliana muslimin, mohammad hafizuddin jumali, tan sin tee, lee hock beng, tan chun hui & yap chi chin.  (2018).  influence of zr doping on structure and morphology of tio2 nanorods prepared using hydrothermal method.  - the 2017 ukm fst postgraduate colloquium, aip conference proceedings.  . 

noor j ridha , firas k mohamad alosfur, mohammad hafizuddin haji jumali, and s radiman.  (2018).  dimensional effect of zno nanorods on gas-sensing performance.  - journal of physics d: applied physics.  . 

abdelelah alshanableh, sin tee tan, chi chin yap, hock beng lee, hind fadhil oleiwi, kai jeat hong, mohd. hafizuddin hj.jumali, muhammad yahaya.  (2018).  surface engineering of zno nanorod for inverted organic solar cell.  - materials science & engineering b.  . 

nasehah syamin sabri, chi chin yap, muhammad yahaya, muhamad mat salleh and mohammad hafizuddin haji jumali.  (2018).  effect of mixed metal oxides anode modification on the performance of inverted type hybrid organic solar cell based on zno/p3ht.  - solid state science and technology.  . 

mohammad hafizuddin hj jumali, hock beng lee & haidr abdulzahra abbas.  (2017).  effect of growth durations on the formation of zno nanorods prepared using continuous microwave heating technique.  - the 1st ukm isesco comsats international workshop on nanotechnology for young scientists (iwys2016), aip conference proceedings.  . 

siti aishah ahmad fuzi, mohammad hafizuddin hj jumali & bandar ali al-asbahi.  (2017).  photoluminescence study of poly (9,9 di n octylfluorenyl 2,7 diyl)/flourol 7ga/poly[2 methoxy 5 (2 ethylhexyloxy) 1,4 phenylenevinylene] blends.  - the 1st ukm-isesco-comsats international workshop on nanotechnology for young scientists (iwys2016), aip conference proceedings.  . 

ibtisam yahya abdullah, muhammad yahaya, mohammad hafizuddin hj jumali & haider mohammed shanshool.  (2017).  influence of the spinning rate on the beta phase formation in poly(vinylidene fluoride) (pvdf) films.  - the 1st ukm isesco comsats international workshop on nanotechnology for young scientists (iwys2016), aip conference proceedings.  . 

siti aishah ahmad fuzi, mohammad hafizuddin hj jumali, bandar ali al-asbahi, kuan ying kok, nur ubaidah saidin.  (2017).  modification of optophysical properties of poly[(9,9-di-n-octylfluorenyl- 2,7-diyl)-alt-(benzo[2,1,3]thiadiazol-4,8-diyl)] thin film via additions of tio2 nanoparticles.  - international conference on x-rays and related techniques in research and industry, icxri 2016 (materials science forum).  357-361. 

lee khai ern, mohammad hafizuddin jumali, jalifah latip & roslinda shamsudin.  (2017).  empowering research and enhancing management talents.  - proceedings: international conference for research and management executives (icore 2017).  1-79. 

zalita zainuddin, siti anisah masri, wan amira wan zaib, rozidawati awang & mohammad hafizuddin hj jumali.  (2017).  structure, humidity sensitivity and magnetic properties of ce substituted magnesium ferrite.  - ukm-isesco-comsats international workshop on nanotechnology for young scientists (iwys2016).  . 

eng liang lim, chi chin yap, mohammad hafizuddin hj jumali, mohd asri mat teridi, chin hoong teh.  (2017).  inverted organic solar cells integrated with room temperature solution-processed bismuth sulfide electron selective layer.  - solar energy.  1108-1113. 

norhashimah ramli, siti fairuz ahmad, khai ern lee, wan rosmanira wan ismail, dahliya abdul kadir, mohammad sazuan sahrom, mohd riduan mt said, mohammad fadzlee ngatiman, mohd azri tukimon & mohammad hafizuddin haji jumali.  (2017).  analysis of clients` perceptions on the quality of laboratory services: the case of crim-ukm centralised laboratory.  - proceedings: international conference for research and management executives 2017.  10-16. 

chin hong wong, zuraini dahari, mohammad hafizuddin jumali, khairudin mohamed, julie juliewatty mohamed.  (2017).  simulation and fabrication of wagon-wheel-shaped piezoelectric transducer for raindrop energy harvesting application.  - journal of electronic materials.  1587-1597. 

nur ubaidah saidin, kuan-ying kok, mohammad hafizuddin haji jumali & siti aishah ahmad fuzi.  (2017).  controlled growth and alignment of palladium nanowires prepared by template-assisted electrodeposition.  - the 1st ukm-isesco-comsats international workshop on nanotechnology for young scientists (iwys2016), aip conference proceedings.  . 

mohammad hafizuddin hj jumali, zalita zainuddin & chi chin yap.  (2017).  preface: the 1st ukm-isesco-comsats international workshop on nanotechnology for young scientists.  - the 1st ukm-isesco-comsats international workshop on nanotechnology for young scientists (iwys2016).  . 

annas al-sharabi, sarah yasmin tajuddin, au diya fatihah wan saffiey, syazana jasman, h.a. alwi, m.h. hj jumali, r. abd-shukor.  (2017).  effects of nano-sized pbo on the transport critical current density and flux activation energy of yba2cu3o7 superconductor.  - international journal of electrochemical science.  90-102. 

nasehah syamin sabri, eng liang lim, chi chin yap, muhammad yahaya, muhamad mat salleh & mohammad hafizuddin haji jumali.  (2017).  effect of multiple deposition of nio layer on the performance of inverted type organic solar cell based on zno/p3ht:pcbm.  - the 1st ukm-isesco-comsats international workshop on nanotechnology for young scientists (iwys2016), aip conference proceedings.  20015. 

chun hui tan, sin tee tan, hock beng lee, riski titian ginting, hind fadhil oleiwi, chi chin yap, mohammad hafizuddin haji jumali, muhammad yahaya.  (2017).  automated room temperature optical absorbance co sensor based on in-doped zno nanorod.  - sensors and actuators b: chemical.  140-152. 

nasehah syamin sabri, chi chin yap, muhammad yahaya, muhamad mat salleh, mohammad hafizuddin hj jumali.  (2017).  solution-dispersed cuo nanoparticles as anode buffer layer in inverted type hybrid organic solar cells.  - physica status solidi a.  1-7. 

abdelelah alshanableh, chi chin yap, sin tee tan, hock beng lee, chun hui tan, riski titian ginting, mohd. hafizuddin hj. jumali.  (2016).  novel hydrothermal approach to functionalize self-oriented twin zno nanotube arrays.  - materials letters.  75-78. 

nur ubaidah saidin, mohammad hafizuddin hj. jumali, k.y. kok dan i. k. ng.  (2016).  pembentukan cekung berkualiti tinggi menggunakan tempoh penganodan yang singkat bagi penghasilan aao.  - sains malaysiana.  1787-1794. 

izzuddin i., jumali m.h.h., zalita z., huwaida j.n., awang r..  (2016).  influence of crystal structural orientation on impedance and piezoelectric properties of knn ceramic prepared using sol-gel method.  - sains malaysiana.  1281-1287. 

annas al-sharabi, sarah yasmin tajuddin, au diya fatihah wan saffiey, syazana jasman, h.a. alwi, m.h. jumali & r. abd-shukor.  (2016).  analisis kekonduksian lebihan superkonduktor yba2cu3o7 ditambah nanozarah pbo (excess conductivity analysis of pbo nanoparticle added yba2cu3o7 superconductor).  - sains malaysiana.  1959-1969. 

al-asbahi b.a., jumali m.h.h., alsalhi m.s..  (2016).  enhanced optoelectronic properties of pfo/fluorol 7ga hybrid light emitting diodes via additions of tio2 nanoparticles.  - polymers.  1-9. 

ng kim hang, lorna jeffery minggu, mohammad hafizuddin haji jumali & mohammad kassim.  (2016).  progress in photoelectrochemical research 2016.  - .  13. 

abdullah i.y., yahaya m., jumali m.h.h., shanshool h.m..  (2016).  influence of the substrate on the crystalline phase and morphology of poly (vinylidene fluoride) (pvdf) thin film.  - surface review and letters.  1-8. 

abdullah i.y., yahaya m., jumali m.h.h.j., shanshool h.m..  (2016).  enhancement piezoelectricity in poly(vinylidene fluoride) by filler piezoceramics lead-free potassium sodium niobate (knn).  - optical and quantum electronics.  1-9. 

zain, c.r.c.m., ibrahim, k., basri, k.h., joe, l.s., nor, m.m., jumali, m.h.h., yusoff, m.f.m., noorani, m.s.m., mustapha, m.a., ibrahim, n., rasol, n.h.a., ahmad, n., daud, n.m., masseran, n., karim, n.h.a., dzul-kifli, s.c., yaacob, w.z..  (2016).  preface: the 2016 ukm fst postgraduate colloquium.  - the 2016 ukm fst postgraduate colloquium, aip conference proceedings.  1001-1080. 

nasehah syamin sabri, chi chin yap, muhammad yahaya, muhamad mat salleh, mohammad hafizuddin haji jumali.  (2016).  effects of ch3nh3pbi(3-x)clx perovskite layer on the performance of inverted type hybrid organic solar cells based on zno/p3ht.  - materials science forum.  292-297. 

riski titian ginting, hock beng lee, sin tee tan, chun hui tan, mohd. hafizuddin hj. jumali, chi chin yap, jae-wook kang, and muhammad yahaya.  (2016).  a simple approach low-temperature solution process for preparation of bismuth-doped zno nanorods and its application in hybrid solar cells.  - journal of physical chemistry c.  771-780. 

hind fadhil oleiwi, sin tee tan, hock beng lee, chi chin yap, riski titian ginting, azmi zakaria, abdelelah alshanableh, chun hui tan, mohammad hafizuddin hj jumali, muhammad yahaya & z. a. talib.  (2016).  two-dimensional cds intercalated zno nanorods: a concise study on interfacial band structure modification.  - rsc advances.  52395-52402. 

hock beng lee, riski titian ginting, sin tee tan, chun hui tan, abdelelah alshanableh, hind fadhil oleiwi, chi chin yap, mohd hafizuddin hj. jumali & muhammad yahaya.  (2016).  controlled defects of fluorine-incorporated zno nanorods for photovoltaic enhancement.  - scientific reports.  1-11. 

nasehah syamin sabri, chi chin yap, muhammad yahaya, mohammad hafizuddin haji jumali, muhamad mat salleh.  (2016).  optimizing the performance of inverted type hybrid organic solar cell based on zno/p3ht with various polymer deposition parameters.  - journal of materials science: materials in electronics.  10442-10448. 

nasehah syamin sabri, chi chin yap, muhammad yahaya, muhamad mat salleh and mohammad hafizuddin haji jumali.  (2016).  solution-dispersed cuo nanoparticles anode buffer layer: effect of ultrasonic agitation duration on photovoltaic performance.  - the 2016 ukm fst postgraduate colloquium,aip conference proceedings.  1-6. 

hock beng lee, sin tee tan, riski titian ginting, chun hui tan, hind fadhil oleiwi, chi chin yap and mohd. hafizuddin haji jumali.  (2016).  tailoring the photovoltaic performance of inverted hybrid solar cells by replacing pedot:pss with v2ox as hole-extraction layer.  - the 2016 ukm fst postgraduate colloquium, aip conference proceedings.  1-5. 

eng liang lim, chi chin yap, mohd asri mat teridi, chin hoong teh, abd rashid bin mohd yusoff, mohammad hafizuddin hj jumali.  (2016).  a review of recent plasmonic nanoparticles incorporated p3ht: pcbm organic thin film solar cells.  - organic electronics.  12-28. 

nor huwaida janil @ jamil, izura izzuddin, zalita zainuddin, and mohammad hafizuddin haji jumali.  (2015).  microstructural studies of nanocrystalline barium zirconium titanate (bzt) for piezoelectric applications.  - the 2015 ukm fst postgraduate colloquium.  040008 (1-5). 

eng liang lim, chi chin yap, muhammad yahaya, muhamad mat salleh, mohammad hafizuddin haji jumali.  (2015).  zno nanorod arrays pre-coated with dcjtb dye for inverted type hybrid solar cells incorporating p3ht donor.  - journal of materials science: materials in electronics.  719-725. 

hock beng lee, mohd. hafizuddin hj jumali, riski titian ginting, sin tee tan, chi chin yap, chun hui tan.  (2015).  mechanistic study on highly crystalline (002) plane bounded zno nanofilms prepared via direct current magnetron sputtering.  - materials letters.  83-88. 

bahanurddin n.f.k., jumali m.h., mohamed j.j., ahmad z.a..  (2015).  effects of compaction pressure on lead zirconate titanate piezoelectric and dielectric properties prepared via high planetary mill.  - journal of ceramic processing research.  258-261. 

mohammad bin kassim, mohammad hafizuddin bin jumali, wan ramli bin wan daud, mohammad bin kassim, umi azmah binti hasran, siti kartom kamarudin, mohd shahbudin bin mastar, lorna binti jeffery minggu.  (2015).  pembangunan sel fuel fotoelektrokimia metanol untuk penghasilan hirogen dan kuasa dengan tenaga suria.  - .  . 

ibtisam yahya abdullah, muhammad yahaya, mohd hafizuddin haji jumali, haider mohammed shanshool.  (2015).  influence of temperature on crystalline structure of polyvinylidene fluoride.  - international journal of technical research & applications (ijtra).  . 

nor fatin khairah bahanurddin, muhammad afif sharhan shuaibon, mohammad hafizuddin jumali, zainal arifin ahmad, julie juliewatty mohamed.  (2015).  effect of lanthanum and strontium doped on pzt properties prepared via high planetary mill for piezofan application.  - international conference on x-rays and related techniques in research and industry 2014 (icxri 2014) (advanced materials research).  172-176. 

ibtisam yahya abdullah, mohammad hafizuddin haji jumali, muhammad yahaya, haider mohammed shanshool.  (2015).  facile formation of beta poly (vinylidene fluoride) films using the short time annealing process.  - advances in environmental biology.  20-27. 

ibtisam yahya abdullah, muhammad yahaya, mohd hafizuddin haji jumali & haider mohammed shanshool.  (2014).  effect of annealing process on the phase formation in poly(vinylidene fluoride) thin films.  - the 2014 ukm fst postgraduate colloquium, aip conference proceedings.  . 

yap chi chin, muhammad bin yahaya, mohammad hafizuddin bin jumali, muhamad bin mat salleh, rozidawati binti awang, akrajas ali umar.  (2014).  graphene thin film with enhanced electrical conductivity by chemical doping for organic solar cells.  - .  . 

lorna jeffery minggu, wan ramli wan daud, mohammad kassim, mohammad hafizuddin jumali & ng kim hang.  (2014).  directory of research projects - fundamental research grant scheme - technology and engineering.  - .  92-96. 

izura izzuddin, mohammad hafizuddin jumali & zalita zainuddin.  (2014).  structural and electrical evaluation of knn ceramic.  - the 2014 ukm fst postgraduate colloquium, aip conference proceedings.  . 

mohammad hafizuddin haji jumali, firas k. mohamad alosfur, shahidan radiman, noor j. ridha, mohd ambar yarmo, akrajas ali umar.  (2014).  rapid synthesis of tio2/mwcnts nanocatalyst with enhanced photocatalytic activity using modified microwave technique.  - materials science in semiconductor processing.  25:207-210. 

nur zu ira bohari, r. hussin, zuhairi ibrahim, m. h. haji jumali, royston uning, aliff rohaizad.  (2014).  structural and luminescence properties of eu3+ and dy3+-doped magnesium boro-tellurite ceramics.  - international conference on solid state science and technology, icssst 2012 (advanced materials research).  269-273. 

al-asbahi b.a., jumali m.h.h..  (2014).  enhancement of optical properties of poly (9,9?-di-n-octylfluorenyl- 2,7-diyl) in conjugated polymer/tio2 nanocomposites.  - canadian journal of physics.  1021-1025. 

al-asbahi b.a., haji jumali m.h., al-gaashani r..  (2014).  efficient charge transfer mechanism in polyfluorene/zno nanocomposite thin films.  - journal of nanomaterials.  . 

nur ubaidah saidin, mohammad hafizuddin hj jumali, kok kuan ying.  (2014).  effect of duration on pore widening of one-step anodized aluminum oxide template.  - the 2014 ukm fst postgraduate colloquium, aip conference proceedings.  142-146. 

intan syaffinazzilla zaine, z.m. zabidi, a.n. alias, m.h. jumali.  (2013).  effect of polyaniline doping on structural and vapor sensing properties of tungsten organometallic thin film.  - international conference on materials and manufacturing research (advanced materials research).  237-241. 

al-asbahi, b.a., jumali, m.h.h., yap, c.c., salleh, m.m., alsalhi, m.s..  (2013).  inhibition of dark quenching by tio2 nanoparticles content in novel pfo/fluorol 7ga hybrid: a new role to improve oled performance.  - chemical physics letters.  570:109-112. 

bandar ali al-asbahi, mohammad hafizuddin haji jumali, chi chin yap, muhamad mat salleh.  (2013).  enhancement of poly(9,9'-di-n-octylfluorenyl-2.7-diyl) optoelectronic properties in novel conjugated polymer/laser dye hybrid oleds.  - isesco conference on nanomaterials and applications 2012.  281-288. 

bandar ali al-asbahi, mohammad hafizuddin haji jumali, chi chin yap, moayad husein flaifel, muhamad mat salleh..  (2013).  photophysical properties and energy transfer mechanism of pfo/fluorol 7ga hybrid thin films.  - journal of luminescence.  57-65. 

bandar ali al-asbahi, mohammad hafizuddin haji jumali, chi chin yap, muhamad mat salleh..  (2013).  influence of tio2 nanoparticles on enhancement of optoelectronic properties of pfo-based light emitting diode.  - journal of nanomaterials.  1-7. 

noor j. ridha, mohammad hafizuddin haji jumali, akrajas ali umar, firas k. mohamad.  (2013).  ethanol sensor based on zno nanostructures prepared via microwave oven.  - 2013 seventh international conference on sensing technology (icst).  121-126. 

noor j. ridha, akrajas ali umar, f. alosfur,mohammad hafizuddin haji jumali, and muhamad mat salleh.  (2013).  microwave assisted hydrothermal method for porous zinc oxide nanostructured-films.  - journal of nanoscience and nanotechnology.  2667-2674. 

firas k mohamad alosfur, mohammad hafizuddin haji jumali, shahidan radiman, noor j ridha, mohd ambar yarmo and akrajas ali umar.  (2013).  modified microwave method for the synthesis of visible light-responsive tio2/mwcnts nanocatalysts.  - nanoscale research letters.  2013, 8:346. 

noor j. ridha, mohammad hafizuddin haji jumali, akrajas ali umar and f. alosfur.  (2013).  defects-controlled zno nanorods with high aspect ratio for ethanol detection.  - international journal of electrochemical science.  8(4):4583-4594. 

firas k mohamad alosfur, mohammad hafizuddin jumali, shahidan radiman, noor j. ridha, ali umar akrajas.  (2013).  visible light photocatalytic activity of tio2/mwcnts nanocomposite prepared using modified microwave technique.  - icst 2013 : 7th international conference on sensing technology.  777-781. 

marjoni imamora ali umar, chi chin yap, rozidawati awang, mohammad hafizuddin hj jumali, muhamad mat salleh, muhammad yahaya.  (2013).  characterization of multilayer graphene prepared from short-time processed graphite oxide flake.  - journal of materials science: materials in electronics.  24(4):1282-1286. 

norhashimah ramli, mohammad hafizuddin haji jumali and wan safizah wan salim.  (2013).  fundamental characterisation of dredged marine sediments from kuala perlis jetty by xrf, xrd and ftir.  - advanced materials research.  . 

alosfur, f; jumali, mhh; radiman, s; ridha, nj; yarmo, ma; umar, aa.  (2013).  visible light-responsive tio2 coated mwcnts as a hybrid nanocatalysts.  - international journal of electrochemical science.  8(2):2977-2982. 

al-asbahi, b.a., alsalhi, m.s., al-dwayyan, a.s., haji jumali, m.h.  (2012).  forster-type energy transfer mechanism in pf2/6 to meh-ppv conjugated polymers.  - journal of luminescence.  132(2):386-390. 

izzuddin, i., jumali, m.h.h., yahayaahayaahaya, m., salleh, m.m..  (2012).  new hybridization approach of titanium organometallic: pani thin films as room temperature gas sensors.  - sains malaysiana.  41(8):1017-1021. 

nasim, f., ali, a., hafizuddin, m., bhatti, a.s..  (2012).  role of ti phases in the modulation of border traps at the tio2/n-si interfaces.  - journal of applied physics.  112(4):art. no 044513. 

tahir, sfbm; ramli, n; izzuddin, i; salleh, mm; yahaya, m; umar, aa; jumali, mhh.  (2012).  effect of zno addition on structural properties of zno-pani/carbon black thin films.  - sains malaysiana.  41(8):1001-1004. 

jumali, m.h.h., mohamad, s.m., awang, r., yahaya, m., said, m.r.m., salleh, m.m..  (2012).  effect of annealing temperatures on formation of na0.5bi0.5tio3 and (na0.5bi0.5)(0.96)ba0.04tio3 ceramics prepared via sol gel method.  - 26th regional conference on solid state science and technology, rcssst 2011;seremban, negeri sembilan (advanced materials research).  . 

jumali, m.h.h., al-asbahi, b.a., yap, c.c., salleh, m.m., alsalhi, m.s..  (2012).  optoelectronic property enhancement of conjugated polymer in poly(9,9-di-n-octylfluorenyl-2.7-diyl)/titania nanocomposites.  - thin solid films.  524:257-262. 

s. nasrin, a.k.m.akther hossain, mohammad hafizuddin haji jumali.  (2012).  high frequency initial permeability of nanocrystalline nimncu ferrites.  - 2012 international conference on informatics, electronics and vision (iciev 2012).  . 

ng kim hang, lorna jeffery minggu, mohammad hafizuddin hj. jumali, mohammad b. kassim.  (2012).  fotoelektrod tungsten trioksida terdop nikel untuk tindak balas pembelahan air fotoelektrokimia.  - sains malaysiana.  41(7):893-899. 

f. md salleh, a.k. yahya and m.h jumali.  (2012).  enhancing the sinterability of chemically-derived tl1212 superconducting powders using nano-sized mgo as sintering aid.  - advanced materials research : 2nd international conference on advances in materials and manufacturing (icammp 2011).  . 

mohammad hafizuddin haji jumali, siti mariam mohammad, rozidawati awang, muhammad yahaya and muhammad mat salleh.  (2012).  effect of annealing temperatures on nanostructure of nbt ceramics.  - advanced materials research.  . 

mohammad hafizuddin haji jumali, noor razinah rahmat, muhammad yahaya, muhamad mat salleh, akrajas ali umar.  (2012).  synthesis of monodisperse cdse qds using controlled growth temperatures.  - advanced materials research.  . 

mohammad hafizuddin jumali, j. ridha noor, ali umar akrajas, muhammad yahya, muhamad mat salleh.  (2012).  characterization of sno2 nanoparticles prepared by two different wet chemistry methods.  - advanced materials research.  322-326. 

b. a. al-asbahi, m. h. haji jumali and c. c. yap.  (2012).  effect of tio2 contents on optical properties of poly(9,9`-di-n-octylfluorenyl-2.7-diyl)/tio2 nanocomposites thin films.  - solid state science and technology letters.  19(1&2):157-162. 

mohammad hafizuddin haji jumali, k. mohamad al asfoor firas, shahidan radiman, akrajas ali umar..  (2012).  dressing of mwcnts with tio2 nanoparticles using modified microwave method.  - international conference on nanomaterials, synthesis and characterization, icnsc2011 (advanced materials research).  228-231. 

mohammad b. kassim, lorna jeffery minggu, mohd hafizuddin haji jumali, akrajas, ali umar, siti fairus binti mohd yusoff, farah hannan anuar, khuzaimah arifin.  (2012).  progress in photoelectrochemical research 2012.  - .  74. 

mohammad hafizuddin haji jumali, j. ridha noor, akrajas ali umar, muhammad yahya, muhamad mat salleh.  (2012).  characterization of sno2 nanoparticles prepared by two different wet chemistry methods.  - international conference on nanomaterials, synthesis and characterization, icnsc2011 (advanced materials research).  322-326. 

mohammad hafizuddin hj jumali, firas k. mohamad al-asfoor, shahidan radiman and akrajas ali umar.  (2012).  dressing of mwcnts with tio2 nanoparticles using modified microwave method.  - advanced materials research.  . 

abd-shukor, r., kong, i., lim, e.l., mizan, n.a., alwi, h.a., jumali, m.h., kong, w..  (2012).  enhanced critical current density of fef 2 added yba 2cu 3o 7-delta.  - journal of superconductivity and novel magnetism.  25(4):957-960. 

m. h. h. jumali, i. izzuddin, h. najib, m. yahaya and m. m. salleh.  (2011).  ethanol sensing behaviour of tio2-pvk thin films.  - solid state science and technology.  19(2):8-15. 

s. m. mohamad, m. h. h. jumali, r. awang, m. yahaya and m. m. salleh.  (2011).  effect of deposition techniques on fabrication of nbt films.  - solid state science and technology letters.  18(1&2):88-94. 

haji jumali, m.h., ramli, n., izzuddin, i., salleh, m.m., yahaya, m..  (2011).  influence of pani additions on methanol sensing properties of zno thin films.  - sains malaysiana.  40(3):203-208. 

mohammad b. kassim, wan ramli wan daud, lorna jeffery minggu, kamaruzzaman sopian, mohd hafizuddin hj. jumali, akrajas ali umar, ibrahim n. hassan, siti fairus mohd yusoff, yap chi chin.  (2011).  progress in photoelectrochemical research 2011.  - .  99. 

mohammad hafizuddin hj. jumali, tio ying ying, norhashimah ramli, muhammad mat salleh and muhammad yahaya.  (2011).  effect of la2o3 additions on microstructure, morphology and pressure sensing behaviour of pzt based ceramics sintered in al2o3 environment.  - international conference on x-ray and related techniques in research and industry, ixcri 2010; langkawi island(advanced materials research).  . 

n. r. rahmat, m. yahaya, m. m. salleh, a. a. umar and m. h. jumali.  (2011).  synthesis of high-luminescence cdse quantum dots at various temperatures.  - solid state science and technology.  19(2):144-149. 

khalijah mohd salleh, mohd yusof hj othman, shahidan radiman, jawiah dakir, abdul halim tamuri, nor hayati alwi, muhammad hafizuddin jumali, lilia halim, mastura badzis.  (2011).  teachers` concerns, perception and acceptance toward tauhidic science education.  - kyoto bulletin of islamic area studies.  4(1&2):124-155. 

m. deraman, awitdrus, i. a. talib, r. omar, m. h. jumali, m. m. ishak, s. k. m. saad, e. taer, m. m. saman, r. farma, and r. m. yunus.  (2010).  electrical conductivity of carbon pellets prepared from mixtures of pyropolymers from oil palm bunches and petroleum green coke.  - aip conference proceedings volume 1325, the 4th asian physics symposium an international symposium.  . 

mohammad hafizuddin haji jumali, norhashimah ramli, izura izzuddin, muhamad mat salleh and muhammad yahaya.  (2010).  characterizations of sno2 thin films prepared using sol-gel method.  - solid state science and technology.  18(1): 386-393. 

muhammad yahaya, chi chin yap, mohammad hafizuddin jumali, muhamad mat salleh.  (2010).  growth and synthesis of zno nanorod arrays by a chemical solution method.  - 4th asian physics symposium: an international symposium.  79-82. 

siti fariza mat tahir, norhashimah ramli, izura izzuddin, muhammad mat salleh, muhammad yahaya dan mohammad hafizuddin haji jumali.  (2010).  sensor gas filem nipis nanokomposit sno2-pani.  - solid state science and technology letters.  17(1&2):77-83. 

mohamad deraman, siti katijah md saad, maria m. ishak, awitdrus, erman taer, ibrahim talib, ramli omar and mohammad hafizuddin hj. jumali..  (2010).  carbon/carbon nanotubes (cnts) composites from green pellets containing cnts and self-adhesives carbon grains from oil palm empty fruit bunch.  - aip conference proceedings no. 1284, the third nanoscience and nanotechnology symposium 2010, bandung, indonesia.  . 

jumali, m.h.h., mt. said, m.r., wee, n.y., yahaya, m., salleh, m.m..  (2010).  kelakuan pengesanan tekanan bagi seramik natrium bismut titanat [pressure sensing behaviour of sodium bismuth titanate ceramics].  - sains malaysiana.  39(4):621-626. 

awitdrus; deraman, m; abu talib, i; omar, r; jumali, mhh; taer, e; saman, mm.  (2010).  microcrystallite dimension and total active surface area of carbon electrode from mixtures of pre-carbonized oil palm empty fruit bunches and green petroleum cokes.  - sains malaysiana.  39(1):83-86. 

mohammad hafizuddin haji jumali, izura izzuddin, amirah m. akhir, norhashimah ramli, muhamad mat salleh and muhammad yahaya.  (2010).  microstructural and ethanol sensing variations of tio2-pss multi layered thin films.  - world applied science journal.  9:56-59. 

mohamad deraman, mansor mohd. saman, rozan mohd. yunus, awitdrus, erman taer, maria muhammad ishak, siti khatijah md saad, ibrahim talib, ramli omar, mohammad hafizuddin hj. jumali.  (2009).  the effect of h2so4 and co2 treatments on electrical conductivity of carbon electrode from oil palm empty fruit bunches.  - solid state sciences and technology letters, 2009, 16(1&2): 203-208.  16(1&2):203-208. 

mohammad hafizuddin jumali.  (2009).  prinsip asas kaedah ujikaji.  - bengkel pendidikan sains tauhidik 2, zon selatan.  . 

mohammad hafizuddin haji jumali, izura izzuddin, norhashimah ramli, muhamad mat salleh and muhammad yahaya.  (2009).  comparative studies on microstructural and gas sensing performance of tio2 and tio2-pani nanocomposite thin films.  - journal of solid state science and technology.  17(1):126-131. 

mohamad deraman, ramli omar, mohammad hafizuddin hj. jumali, maria m. ishak, awitdrus, ibrahim talib, mansor m. saman, rozan m. yunus, erman taer.  (2009).  supercapacitor using carbon electrodes from pre-carbonized fibers of oil palm empty fruit bunches.  - abstrak makalah, persidangan antarabangsa pembangunan malaysia-indonesia sempena pelancaran alumni ukm cawangan indonesia, 4-5 april 2009, jakarta, indonesia.  . 

ramli, n; salleh, mm; yahaya, m; jumali, mhh.  (2009).  effect of zro2 addition on microstructure, morphology and pressure sensing behaviour of pb(zrxti1-x)o-3 ceramics sintered in al2o3 environment.  - sains malaysiana.  38(5):685-691. 

shamsuri a.a., daik r., ahmad i., jumali m.h.hj..  (2009).  nylon-6/liquid natural rubber blends prepared via emulsion dispersion.  - journal of polymer research.  16:381-387. 

c.c. yap, m. yahaya, m.h. jumali and m.m. salleh.  (2009).  synthesis of zno nanorod arrays on zno nanoparticles-coated ito substrate.  - journal of solid state science and technology.  17(2): 8-15. 

mohammad hafizuddin hj. jumali, izura izzuddin, norhashimah ramli, muhamad mat salleh, muhammad yahaya.  (2009).  effect of polyaniline additions on structural and gas sensing behaviour of metal oxides thin films.  - proceedings of spie - the international society for optical engineering.  . 

khalijah mohd salleh, mohd yusof hj othman, shahidan radiman, jawiah dakir, nor hayati alwi, muhammad hafizuddin jumali, lilia halim & mastura badzis.  (2009).  teachers` concerns, perception adn acceptance toward tauhidic science education.  - international symposium on islam, science and civilization.  . 

huzaifah haristsah abd razak, rusli daik, ibrahim abdullah & mohd hafizuddin jumali.  (2009).  structural and morphological development of polycarbonate/liquid natural rubber/ clay nanocomposites via emulsion dispersion technique.  - nanotech malaysia 2009 conference.  . 

erman taer, mohamad deraman, ibrahim talib, mohd. hafizuddin jumali, ramli omar, awitdrus, rozan mohamad yunus, mansor mohd. saman, munetaka oyama, akrajas ali umar.  (2009).  deposition and characterization of platinum and gold nano-particles on carbon pellets electrodes from mixture of green petroleum coke and self-adhesive carbon grains from biomass precursor.  - proceedings(natural sciences), fourth scientific conference-`facing the future with sciences`, 17th january, 2009, organised by persatuan pelajar indonesia-ukm, ukm..  . 

yusof, mi; salleh, z; yahya, ak; jumali, mh.  (2009).  superconductivity and enhancement of critical current density of ta-substituted tlsr1212 with addition of nanosize mgo.  - materials research innovations.  13(3):364-367. 

huzaifah haritsah abdul razak, rusli daik, ibrahim abdullah, & mohammad hafizuddin jumali.  (2009).  structure, morphology and thermal stability of polycarbonate/liquid natural rubber/clay nanocomposites prepared by emulsion dispersion technique.  - malaysia polymer international conference (mpic 2009).  . 

huzaifah haritsah abdul razak, rusli daik, ibrahim abdullah, mohammad hafizuddin hj jumali.  (2008).  penyediaan nanokomposit polikarbonat/getah asli cecair/tanah liat melalui kaedah penyebaran emulsi.  - kolokium siswazah fakulti sains dan teknologi ke 8, 1-2 julai 2008, ukm bangi..  . 

mohamad deraman, rozan mohamad yunus, ramli omar, mohd. hafizuddin jumali, ibrahim abu talib, erman taer, mansor mohd. saman and awitdrus.  (2008).  crystallites structural parameters of co2 activated carbon electrode from mixtures of h2so4 treated self adhesive carbon grains from oil palm empty fruit bunch and hydrous ruthenium oxide.  - solid state science and technology letters.  15(2):204-210. 

izura izzuddin, norhashimah ramli, muhamad mat salleh, muhammad yahaya and mohammad hafizuddin jumali.  (2008).  development of gas sensor system based on the tio2/pani composite thin film.  - proceedings 2008 ieee international conference on semiconductor electronics, ed chapter, ieee malaysia section, ukm bangi.  . 

salleh f.md., yahya a.k., awang z., jumali m.h..  (2008).  influence of t1-containing coprecipitation derived precursor powder on microstructure and transport properties of t10.8bi0.2sr2ca0.8 y0.2cu2o7 superconducting dip-coated tapes.  - journal of applied sciences.  8(1):185-188. 

erman taer, mohamad deraman, ibrahim abu talib, mohd. hafizuddin jumali, ramli omar, awitdrus, rozan m.yunus, mansor m. saman, munetaka oyama, akhrajas ali umar, mohd yazre m. yasin, astimar a. aziz..  (2008).  supercapacitor using carbon electrode from pre-carbonized rubber wood saw dust..  - prosiding kolokium siswazah ke-8, fakulti sains dan teknologi, ukm,.  . 

awitdrus, mohamad deraman, erman taer, mohd yazre mohd yasin, mansor mohd. saman, ibrahim talib, ramli omar, mohammad hafizuddin hj. jumali, astimar abdul aziz and rozan mohd. yunus..  (2008).  electrochemical impedance spectroscopy analysis of supercapacitor using carbon electrodes from pre-carbonized fibers of oil palm empty fruit bunches..  - kolokium siswazah ke-8, fakulti sains dan teknologi, ukm, page 103-105..  . 

a.k.yahya, w.f. abdullah, h.imad, m.h. jumali.  (2007).  changes in doping state of (tl, pb)sr1212 superconductors with yb substitution at sr site.  - physica c: superconductivity and its applications.  474-477. 

abubakar elshiekh abdelrahman, mohamad deraman, ramli omar, mohd hafizuddin jumali, sarani zakaria, astimar abd aziz, yap yee ling and julia tan meihua.  (2005).  young?s modulus, hardness and crystallite size of carbon pellets prepared from hcl treated pre-carbonized cotton ball..  - journal of solid state science and technology letters.  12(1&2):281-289.