pensyarah universiti
institut kejuruteraan mikro & nanoelektronik (imen)
akrajas@ukm.edu.my
Kluster Kepakaran/ Cluster of Expertise :
Teknologi Digital dan Terkehadapan,
Sumber Lestari, Alam Sekitar dan Kehidupan Pintar,
Biografi/ Biography :
Prof. Akrajas Ali Umar received his PhD in Physics from the National University of Malaysia in 2004 in organic thin film for optical sensing application. He is currently Professor in the Institute of Microengineering and Nanoelectronics (IMEN), the National University of Malaysia since 2011. His research interests are mainly in the field of Nanophysics and Nanomaterial Chemistry, particularly nanostructures design with controlled atomic composition, surface structure and morphology with emphasis on energy conversion applications. Prior to joining the National University of Malaysia, he has served as a lecturer at the Department of Physics, Universitas Andalas, Indonesia from 1997 to 2008. He has also served as Ministry of Science and Technology and Environment of Malaysia (MOSTE) Postdoctoral Fellow, at the National University of Malaysia in 2004, Kyoto University Venture Business Laboratory Postdoctoral Fellow (2004-2005) and Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellow in Kyoto University, Japan, from 2005-2007. He was World Class Professor of Ministry of Research, Science , Technology and higher Education of Indonesia (2018) and visiting scholar in Fudan University, China (2019-2020). He has been appointed as Fudan Scholar, Fudan University in 2023. He has published more than 280 papers in high-impact factor journals with h-index as high as 36.
alimin alimin, sri juari santosa, akrajas ali umar, rahmayanti rahmayanti, alham alham. (2025). green conductive paper derived from sago pulp of southeast sulawesi based on magnetic nanocomposite of fe3o4/carbon nanofibers for phenol adsorption. - environmental nanotechnology, monitoring and management. 1 - 8.
mokhamad ali rizqi maulana, setia budi, jumaeda jatmika, mohammad hamzah fauzi, suci winarsih, akrajas ali umar. (2025). effect of electrolyte ph on room-temperature photoelectrodeposition of cu2o for hydrogen evolution reaction. - clean energy. 233 - 243.
ari sulistyo rinia, afrida helena sitorus, yolanda rati, erman taer, zulkarnain usman, jasril, akrajas ali umar. (2025). biosynthesis of sulfur and selenium co-doped zno nanoparticles for the enhanced photocatalytic treatment of industrial wastewater. - communications in science and technology. 10 - 16.
ratna kusumawardani, atiek rostika noviyanti, mukhamad nurhadi, akrajas ali umar, ferli septi irwansyah, muhamad diki permana. (2025). effect of sintering conditions on the structural and morphological characteristics of hydroxyapatite synthesized from belida fish (chitala lopis) bone. - asean journal of science and engineering (ajse). 491 - 508.
nurain alias, asad masood, poh choon ooi, mohsen ahmadipour, mohd ambri mohamed, abdul manaf hashim, akrajas ali umar, muhammad aniq shazni mohammad haniff. (2025). biosensor innovations for acute kidney injury (aki) and chronic kidney disease (ckd) diagnostics. - acs applied bio materials. 9557 - 9588.
marjoni imamora ali umar, dewi sahara, fadhilah fadhilah, abang anuar ehsan, muhammad aniq shazni mohammad haniff, mohd yusri abd rahman, vivi fauzia, atiek rostika noviyanti, dahyunir dahlan, setia budi, akrajas ali umar. (2025). enhanced optoelectrical dynamics in ambient-processed csfamapbx3 perovskite solar cells by lithium organic salt doping. - journal of materials science: materials in electronics. 1 - 16.
marjoni imamora ali umar, renna azmar, jihan azizah ananda, vivi fauzia, dahyunir dahlan, muhammad nurdin, maulidiyah maulidiyah, norasikin ahmad ludin, akrajas ali umar. (2025). large perovskite grain's crystal synthesis for enhanced solar cells efficiency. - journal of the taiwan institute of chemical engineers. 1 - 11.
faizal mustapa, selvia laki wawe, la ode ahmad, dwiprayogo wibowo, amir mahmud, maulidiyah maulidiyah, akrajas ali umar, muhammad nurdin.. (2025). development of cellulose acetate-polyethylene glycol-chitosan membrane-embedded tio2 nanoparticles for reverse osmosis desalination. - water, air, and soil pollution. 1 - 15.
zul arham, muhammad nurdin, kurniawan kurniawan, ismaun ismaun, maulidiyah maulidiyah, akrajas ali umar, sitti jaria ndora, fika ferlita. (2025). promising multi-oxide decorated graphene nanomaterials from nickel slag for voltammetric sensor electrodes. - water, air, and soil pollution. 1 - 13.
muhammad zakir muzakkar, nur aisyah busri, akrajas ali umar, la ode agus salim, maulidiyah maulidiyah, muhammad nurdin. (2025). enhanced performance of perovskite solar cells with tungsten-doped sno2 as an electron transport material. - journal of inorganic and organometallic polymers and materials. 1475 - 1483.
n. a. s. aziz·, m. y. a. rahman, a. a. umar, e. r. mawarnis, a. w. m. zuhdi. (2025). dye-sensitized solar cells utilizing aurum-palladium bimetal film counter electrode. - ionics. 2855 - 2867.
hudya fitra hasmin, livia ilona djajasuminta, muhammad adam dwiputra, tengku emrinaldi, liszulfah roza, akrajas ali umar, titian riski ginting, vivi fauzia . (2025). enhancing the performance of molybdenum disulfide-based solar water evaporation systems by tuning the synthesis temperature. - environmental progress & sustainable energy. 1 - 12.
syahirah ahinayadullah, muhammad hilmi johari, muhammad faris musawwi ruslan, mega fatmasari, akrajas ali umar & abdul rahman mohmad. (2025). sintesis dan mekanisme pertumbuhan kepingan nbs2 yang dihasilkan melalui pemendapan wap kimia dibantu garam halida. - sains malaysiana. 1159 - 1166.
e. r. mawarnis, l. roza, m. y. a. rahman, m. herman, a. a. umar, n. a. s. aziz. (2024). palladium–ruthenium binary alloy nanosheets as catalyst for electrochemical water splitting. - chemical papers. 5961 - 5968.
tengku emrinaldi, muhammad adam dwiputra, ananta r. fareza, akrajas ali umar, ferry anggoro ardy nugroho, riski titian ginting, vivi fauzia. (2024). tuning surface wettability of mos2 to enhance solar-driven evaporation rates. - environmental progress and sustainable energy. 1-10.
rosmawati rosmawati , sri fatmah sari , asnani asnani , wa embe , asjun asjun , dwiprayogo wibowo , irwan irwan , nurul huda , muhammad nurdin , and akrajas ali umar . (2025). influence of sorbitol and glycerol on physical and tensile properties of biodegradable–edible film from snakehead gelatin and ?-carrageenan. - international journal of food science . 1 - 17.
faizal mustapa, selvia laki wawe, la ode ahmad, dwiprayogo wibowo, amir mahmud, maulidiyah maulidiyah, akrajas ali umar, muhammad nurdin.. (2025). development of cellulose acetate-polyethylene glycol-chitosan membrane-embedded tio2 nanoparticles for reverse osmosis desalination. - water, air, and soil pollution. 1 - 15.
muhammad zakir muzakkar, nur aisyah busri, akrajas ali umar, la ode agus salim, maulidiyah maulidiyah, muhammad nurdin. (2025). enhanced performance of perovskite solar cells with tungsten-doped sno2 as an electron transport material. - journal of inorganic and organometallic polymers and materials. 1475 - 1483.
marjoni imamora ali umar, renna azmar, jihan azizah ananda, vivi fauzia, dahyunir dahlan, muhammad nurdin, maulidiyah maulidiyah, norasikin ahmad ludin, akrajas ali umar. (2025). large perovskite grain's crystal synthesis for enhanced solar cells efficiency. - journal of the taiwan institute of chemical engineers. 1 - 11.
alimin alimina, fadel muhamada, alham alhama, finkyasti nur admana, ika anjania, della ardana amala, rahmayanti rahmayantia, la ode ahmada, fahmiati fahmiatia, ahmad zaenia, la agusub, muhammad zamrun firihu, ida usman, sri juari santosa, akrajas ali umar. (2025). a high performance supercapacitor electrode materials based on carbon quantum dots originated from bamboo leaves of southeast sulawesi doped with nanomagnetite derived from iron sands. - materials chemistry and physics. 1 - 10.
jaenudin ridwan, jumril yunas, akrajas ali umar, aini ayunni mohd raub. (2021). hydrothermal grow of cu doped zno nanorods for large spectrum photocatalyst. - 2021 ieee regional symposium on micro and nanoelectronics (rsm). 108-111.
norhayati abu bakar, nur adliha abdullah, akrajas ali umar, muhamad mat salleh, joseph george shapter. (2019). effect of silver concentration towards formation of agpt nanofern films as sers substrates. - fourth international conference on science and technology (materials science forum). 231-236.
liszulfah roza, i. iwantono, gusyeri andika, akrajas ali umar, mohd. yusri. abd rahman. (2018). effect of hexamethylenetetramine (hmt) concentration on the properties of boron doped zno nanotubes array films and the performance of dye-sensitized solar cell (dssc). - international conference on engineering and technology (intcet 2017). .
norhayati abu bakar, muhamad mat salleh, akrajas ali umar and joseph george shapter. (2018). effect of surface density silver nanoplate films toward surface-enhanced raman scattering enhancement for bisphenol a detection. - journal of physics: conference series (3rd international symposium on frontier of applied physics, isfap 2017). .
abdullah h., naim n.m., hamid a.a., umar a.a.. (2016). characterization and fabrication of nanocomposite thin films of pani embedded with ag-mn alloy for e. coli sensor. - materials today: proceedings. 538-544.
akrajas ali umar, nurul ain abd malek, nabilah alias, abang anuar ehsan. (2022). two-dimensional transition metal dichalcogenide as electron transport layer of perovskite solar cells. - . 79-98.
norhayati abu bakar, muhamad mat salleh dan akrajas ali umar. (2015). a high sensitive of an optical raman sensor system to detect bisphenol a. - . 34 dan 155-159.
munetaka oyama, akrajas ali umar, jingdong zhang. (2010). recent advances in metal nanoparticle-attached electrodes. - . Bab 8 hal. 297-318.
syahirah ahinayadullah, muhammad hilmi johari, muhammad faris musawwi ruslan, mega fatmasari, akrajas ali umar & abdul rahman mohmad. (2025). sintesis dan mekanisme pertumbuhan kepingan nbs2 yang dihasilkan melalui pemendapan wap kimia dibantu garam halida. - sains malaysiana. 1159 - 1166.
siti azrah mohamad samsuri, mohd. yusri abd. rahman, akrajas ali umar, halim razali. (2024). sel suria terpeka pewarna: agen penchayaan dan perlepasan cas. - . 173.
norhayati abu bakar, akrajas ali umar, muhamad mat salleh. (2019). reka bentuk sensor pendar cahaya bintik kuantum zncdse untuk mengesan racun perosak. - sains malaysiana. 1513-1518.
m.y.a. rahman, l. roza, s.a.m. samsuri, a.a. umar. (2018). effect of n719 dye dipping temperature on the performance of dye-sensitized solar cell. - russian journal of electrochemistry. .
a.s. sulaiman, m.y.a. rahman, a.a. umar, m.m. salleh. (2018). dye-sensitized solar cell (dssc) utilizing tio2 nanostructure films: effect of synthesis temperature. - russian journal of electrochemistry. 56-61.
akrajas bin ali umar;dee chang fu;abdul rahman bin mohmad. (2024). two-dimensional nio hole-selective layer for highly efficient inverted perovskite solar cells. - . .
abdul rahman bin mohmad;akrajas bin ali umar;mohd ambri bin mohamed;rozan binti mohamad yunus. (2023). impact of niobium interstitials on structural properties and catalytic activity of metallic 2-dimensional niobium disulfide. - . .
dilla duryha binti berhanuddin;norhana binti arsad;akrajas bin ali umar;ahmad rifqi bin md zain. (2022). the development of silicon based light-emitting device using hybrid optically active point-defect and photonic crystal (phc) techniques. - . .
mohd yusri bin abd rahman;akrajas bin ali umar;mohd sukor bin su`ait. (2022). nickelpalladium alloy-reduced graphene oxide composite as counter electrode of dye-sensitized solar cells. - . .
akrajas bin ali umar;abdul rahman bin mohmad;mohd yusri bin abd rahman. (2022). ultimate thin tio2-tis2 hybrid nanosheet for high performance perovskite solar cells. - . .
| Geran / Grant | Kolaborator / Collaborator | Status |
|---|---|---|
| HIGH EFFICIENCY SOLAR PANELS USING ADVANCED MATERIALS | mimos berhad | 84% (2021-11-01 sehingga 2026-10-31) |
| HIGH EFFICIENCY SOLAR PANELS USING ADVANCED MATERIALS | gading kencana sdn bhd | 84% (2021-11-01 sehingga 2026-10-31) |
| FLEXIBLE, SUSTAINABLE, AND EFFICIENT ENERGY HARVESTING SOLAR PHOTOVOLTAIC PANELS | petronas research sdn bhd | 91.5% (2024-09-02 sehingga 2026-02-27) |
| PENDERIA ULTRAPEKA DAN FLEKSIBEL SERAKAN RAMAN PERMUKAAN DIPERKUAT (SERS) MENGGUNAKAN SWA-PASANG NANOBINTANG PERAK | sigtech engineering sdn bhd | 59.9% (2024-11-01 sehingga 2026-10-31) |
PHYSICS :PURE AND APPLIED SCIENCES
Nanomaterials
Pengalaman / Experience : tahun/years(s)
PHYSICS :PURE AND APPLIED SCIENCES
Nanomaterials Architecture for Energy Conversion
Pengalaman / Experience : 16 tahun/years(s)