prof. madya dr. akrajas bin ali umar

pensyarah universiti

institut kejuruteraan mikro & nanoelektronik (imen)

 akrajas@ukm.edu.my

No. sambungan :  8547

No. rasmi:
UKM : 03 8921 5555
HUKM : 03-9145 6074/6075/6931/7748



   Biografi :
  • pensyarah universiti

  • mohd yusri bin abd rahman;muhamad bin mat salleh;akrajas bin ali umar.  (2019).  barium titanate (batio3) doped titanium dioxide (tio2) films as photoanode for dye-sensitized solar cell (dssc).  - 1-5. 

     

    norhayati binti abu bakar;akrajas bin ali umar;abdul rahman bin mohmad;norhayati binti abu bakar.  (2019).  building surface enhanced raman spectroscopy (sers) based biosensors.  -

     

    dahyunir dahlan, muhamad adam ramli, khudbatul fiqrian, siti khatijah md saad, munetaka oyama, akrajas ali umar.  (2019).  thermal impact on (001) faceted anatase tio2 microtablets and nanowalls's lattices and its effect on the photon to current conversion efficiency.  - journal of physics and chemistry of solids. 

     

    s.n. sadikin, m.y.a. rahman, a.a. umar.  (2019).  zinc sulphide-coated titanium dioxide films as photoanode for dye-sensitized solar cells: effect of immersion time on its performance.  - superlattices and microstructures.  153-159. 

     

    iwantono iwantono, siti khatijah md saad, fera anggelina, awitdrus awitdrus, muhamad adam ramli, akrajas ali umar.  (2019).  enhanced charge transfer activity in au nanoparticles decorated zno nanorods photoanode.  - physica e: low-dimensional systems and nanostructures.  44-50. 

     

    iwantono iwantono, siti khatijah md saad, fera anggelina, awitdrus awitdrus, muhamad adam ramli, akrajas ali umar.  (2019).  enhanced charge transfer activity in au nanoparticles decorated zno nanorods photoanode.  - physica e: low-dimensional systems and nanostructures.  44-50. 

     

    dahyunir dahlan, muhamad adam ramli, khudbatul fiqrian, siti khatijah md saad, munetaka oyama, akrajas ali umar.  (2019).  thermal impact on (001) faceted anatase tio2 microtablets and nanowalls's lattices and its effect on the photon to current conversion efficiency.  - journal of physics and chemistry of solids. 

     

    zhenhua weng, jiajun qin, akrajas ali umar, jiao wang, xin zhang, haoliang wang, xiaolei cui, xiaoguo li, lirong zheng, yiqiang zhan.  (2019).  lead-free cs2biagbr6 double perovskite-based humidity sensor with superfast recovery time.  - advanced functional materials.  1-9. 

     

    muhammad nurdin, maulidiyah maulidiyah, la ode agus salim, muhammad zakir muzakkar, akrajas ali umar.  (2019).  high performance cypermethrin pesticide detection using anatase tio2-carbon paste nanocomposites electrode.  - microchemical journal. 

     

    muhamad adam ramli, siti khatijah md saad, elvy rahmi mawarnis, marjoni imamora ali umar, p. susthitha menon, mohd yusri abd rahman, akrajas ali umar.  (2019).  facile charge transfer in fibrous pdpt bimetallic nanocube counter electrodes.  - new journal of chemistry.  11148-11156. 

     

    s.n. sadikin, m.y.a. rahman, a.a. umar.  (2019).  zinc sulphide-coated titanium dioxide films as photoanode for dye-sensitized solar cells: effect of immersion time on its performance.  - superlattices and microstructures.  153-159. 

     

    m.y.a. rahman, s.a.m. samsuri, a.a. umar.  (2019).  tio2-srtio3 composite photoanode: effect of strontium precursor concentration on the performance of dssc.  - applied physics a. 

     

    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. 

     

    s.n. sadikin, m.y.a. rahman, a.a. umar, t.h.t. aziz.  (2019).  improvement of dye-sensitized solar cell performance by utilizing tio2 coated graphene films photoanode.  - superlattices and microstructures.  92-98. 

     

    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. 

     

    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. 

     

    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). 

     

    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). 

     

    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. 

     

    iwantono i., tugirin s., anggelina f., awitdrus, taer e., roza l., umar a.a..  (2016).  effect of growth solution concentration on the performance of gallium doped zno nanostructures dye sensitized solar cells (dsscs).  - aip conference proceedings.  1-8. 

     

    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. 

     

    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). 

     

    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). 

     

    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. 

     

    iwantono i., tugirin s., anggelina f., awitdrus, taer e., roza l., umar a.a..  (2016).  effect of growth solution concentration on the performance of gallium doped zno nanostructures dye sensitized solar cells (dsscs).  - aip conference proceedings.  1-8. 

     

    norhayati abu bakar, muhamad mat salleh dan akrajas ali umar.  (2015).  testing and measurement: techniques and applications.  - 34 dan 155-159. 

     

    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. 

     

    norhayati abu bakar, muhamad mat salleh dan akrajas ali umar.  (2015).  testing and measurement: techniques and applications.  - 34 dan 155-159. 

     

    munetaka oyama, akrajas ali umar, jingdong zhang.  (2010).  advanced nanomaterials.  - Bab 8 hal. 297-318. 

     

    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 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. 

     

    norhayati binti abu bakar;akrajas bin ali umar;abdul rahman bin mohmad;norhayati binti abu bakar.  (2019).  building surface enhanced raman spectroscopy (sers) based biosensors.  -

     

    mohd yusri bin abd rahman;muhamad bin mat salleh;akrajas bin ali umar.  (2019).  barium titanate (batio3) doped titanium dioxide (tio2) films as photoanode for dye-sensitized solar cell (dssc).  - 1-5. 

     

    dee chang fu;muhamad bin mat salleh;burhanuddin bin yeop majlis;azrul azlan bin hamzah;akrajas bin ali umar.  (2019).  study on the sensing properties on albumin protein by nanowire based sensing arrays.  - 1-5. 

     

    rosli, m.m., salleh, m.m., umar, a.a.& aziz t.h.t.  (2018).  silver nanowires prepared by one-pot polyol method as transparent conducting thin film electrodes.  - the 9th international workshop on advanced materials science & nanotechnology. 

     

    a.s. sulaiman, m.y.a. rahman & a.a. umar.  (2018).  gold doped reduced graphene oxide as counter electrode in dye-sensitized solar cell.  - imen postgraduate colloquium 2018. 

     
    Geran Kolaborator Status
    GUP-2018-081 mohd khairy othman
    58.9% (2018-08-15 sehingga 2020-08-14)
    GUP-2018-083 prof. dr. munetaka oyama
    58.9% (2018-08-15 sehingga 2020-08-14)
    GUP-2018-084 ultraimpact technologies sdn bhd
    58.9% (2018-08-15 sehingga 2020-08-14)
    GUP-2019-072 mimos berhad
    2.5% (2019-10-01 sehingga 2021-09-30)
    Projek Tempoh Peranan
    the development of silicon based light-emitting device using hybrid optically active point-defect and photonic crystal (phc) techniques 01-10-201930-09-2021 Penyelidik Bersama
    impact of niobium interstitials on structural properties and catalytic activity of metallic 2-dimensional niobium disulfide 01-09-201931-08-2021 Penyelidik Bersama
    ultimate thin tio2-tis2 hybrid nanosheet for high performance perovskite solar cells 01-09-201931-08-2021 Ketua Projek
    nickelpalladium alloy-reduced graphene oxide composite as counter electrode of dye-sensitized solar cells 01-09-201931-08-2021 Penyelidik Bersama
    (Tiada Rekod Tajuk) 05-07-201902-07-2021 Ketua Projek
    high performance organometal halide perovskite solar cells utilizing high-surface energy (001) faceted anatase tio2 nanosheets 01-03-201929-02-2020 Ketua Projek
    high intensity photoluminescence from structural manipulation of hybrid 2d materials and silicon structure for the development of light-emitting device at telecommunication wavelength 01-01-201931-12-2020 Penyelidik Bersama
    investigation of the role of atomic stoichiometry in moxwycu1-x-yx2 (x=s and se) nanosheets on their optoelectronic properties for high performance solar cells 15-08-201814-08-2020 Ketua Projek
    nickel sulfide-reduced graphene oxide composite film as counter electrode in dye-sensitized solar cell 15-08-201814-08-2020 Penyelidik Bersama
    reduced graphene oxide as electron buffer layer for organic light emitting diodes (oleds) 15-08-201814-08-2020 Penyelidik Bersama
    metallic 2-dimensional 1t mos2 as electrode material for supercapacitors 15-08-201814-08-2020 Penyelidik Bersama
    ganjaran penerbitan: akrajas ali umar 01-05-201831-07-2018 Ketua Projek
    multi-parametric graphene-based spr biosensor utilizing kretschmann-based technique 24-10-201623-04-2019 Penyelidik Bersama
    engineering the two-dimensional hexagonal honeycomb crystal of noble metal chalcogenide for high-performance optoelectronic materials. 01-08-201631-07-2018 Ketua Projek
    study on the sensing properties on albumin protein by nanowire based sensing arrays 01-05-201631-10-2018 Penyelidik Bersama
    barium titanate (batio3) doped titanium dioxide (tio2) films as photoanode for dye-sensitized solar cell (dssc) 01-05-201631-10-2018 Penyelidik Bersama
    building surface enhanced raman spectroscopy (sers) based biosensors 01-10-201530-09-2018 Penyelidik Bersama
    characterization of graphene based for biomedical apps 15-06-201530-09-2016 Penyelidik Bersama
    nanobahan untuk peranti sel suria dan sensor 15-06-201530-09-2016 Penyelidik Bersama
    gold doped multilayer graphene electrode for dye-sensitized solar cells 01-06-201530-11-2016 Penyelidik Bersama
    efficient and bright light-emitting diodes on single-layer graphene electrodes 01-02-201531-01-2020 Penyelidik Bersama
    high efficiency plasmonic enhanced hybrid perovskite solar cell: study on plasmonic shape effect 01-08-201430-07-2016 Ketua Projek
    nanobahan untuk tenaga dan oled 01-04-201431-03-2015 Penyelidik Bersama
    bantuan kewangan bahan penyelidikan (bkbp): akrajas ali umar 01-01-201431-03-2015 Penyelia
    investigation on the role of crystalline facet and surface atomic-defect of platinum ultraporous nanocrystal on the charge transfer reaction at the surface 16-12-201315-12-2016 Ketua Projek
    investigation on the effect of zinc oxide nanorods on the current transport property of titanium dioxide nanowires in core-shell structure 16-12-201315-12-2016 Penyelidik Bersama
    develoment of a highly sensitive nanowire based gas sensing device 01-11-201331-10-2015 Penyelidik Bersama
    growth of ultraporous platinum nanocrystal directly on ito substrate: investigation on the effect of sodium deocyl sulfate surfactant and formic acid reducingagent on the morphology and their application in catalysis 01-10-201330-09-2014 Ketua Projek
    generation of coherent spherical-wave light-source using erbium-doped silica nanoparticles coated with gold 20-05-201319-05-2015 Penyelidik Bersama
    zno nanoporous structure for high sensitivity co gas sensor and its mechanism 01-04-201331-03-2016 Penyelidik Bersama
    synthesis and characterization of chalcogenide semiconducting one-dimensional nanowires for phase change memory applications 01-04-201331-03-2015 Penyelidik Bersama
    bantuan kewangan bahan penyelidikan: akrajas ali umar 01-03-201328-02-2014 Penyelia
    sintesis dan perincian bahan untuk peranti sel suria organik, oled dan sensor 01-01-201331-03-2014 Penyelidik Bersama
    bahan mampan & teknologi hijau untuk peranti berkaitan tenaga 01-11-201230-04-2015 Penyelidik Bersama
    green organic solar cells based on water soluble polythiophene and nanocrystalline zinc oxide prepared by inkjet printing technique 01-07-201231-07-2014 Penyelidik Bersama
    development of novel si(x)gel(1-x) tuneable quantum dot lateral p-i-n photodiode (qdlp) for near-infrared detection applications 25-06-201224-06-2013 Penyelidik Bersama
    surface-enhanced raman scattering effect of triangular gold nanoframes as ultra sensitive sensor to detect bisphenol a 01-06-201231-05-2015 Penyelidik Bersama
    study of performance of supercapasitor fabricated using nanocatalyst and composite carbon nanotube/carbon electrodes from fibers of oil palm empty fruit bunches 01-06-201231-05-2015 Penyelidik Bersama
    surface plasmonic effect in a nanomaterial-coated tapered silica-based optical microfiber 01-06-201201-09-2014 Penyelidik Bersama
    nanoelektronik dan mems sensor 01-05-201230-06-2015 Penyelidik Bersama
    enhancing the efficiency of quantum dots-organics hybrids photovoltaic device by plasmonic effect of silver nanocrystals 04-04-201203-04-2014 Ketua Projek
    high sensitivity pressure sensor using potassium sodium niobates (knn) based thin films with modified crystal structure 04-04-201203-04-2014 Penyelidik Bersama
    light emitting device based on new bio polymer material 01-10-201130-09-2012 Penyelidik Bersama
    fabrication of a nanowire field effect transistor for hydrogen gas sensing application 01-10-201130-09-2012 Penyelidik Bersama
    investigation of localized plasmonic effect on the light energy conversion efficiency of quantum dots organics hybrid photovoli 01-10-201130-09-2012 Ketua Projek
    study of performance of supercapasitor fabricated using nanocatalyst and composite carbon nanotube/ carbon alectrodes from fibers of oil palm empty fruit bunches 08-08-201107-08-2012 Penyelidik Bersama
    mems and nano sensors for biosensing applications 01-08-201131-07-2013 Penyelidik Bersama
    photonic crystal-organic structure for high-sensivity carbon monoxide gas sensor 21-06-201120-06-2014 Penyelidik Bersama
    graphene thin film with enhanced electrical conductivity by chemical doping for organic solar cells 21-06-201120-06-2014 Penyelidik Bersama
    new macromolecules incorporated into nanocomposite optocal array capable of trace-level recognition of anionic pollutants 21-06-201120-06-2014 Penyelidik Bersama
    high sensivity pressure sensor using localize piezoelectric effect of sodium bismuth titane nanoparticles 21-06-201120-06-2014 Penyelidik Bersama
    pembangunan modul pengajaran dan penyelidikan sel fotoelektrokimia berasaskan nano bahan semikonduktor untuk penjanaan tenaga keterbaharuan 01-07-201030-06-2012 Penyelidik Bersama
    sifat kondumetrik filem nipis hibrid nanozarah zno-polianilia 15-03-201014-03-2012 Penyelidik Bersama
    fabrication of ii-vii semiconductors quantum dots-organic hybrids with broadband light-sensitivity characteristic 01-11-200931-10-2011 Ketua Projek
    fabrication luminescence devices using inkjet printing technique 01-07-200930-06-2011 Penyelidik Bersama
    fabrikasi peranti hibrid bintik kuantum-organik 01-06-200831-12-2012 Ketua Projek