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.  - .  . 

abdul rahman bin mohmad;azrul azlan bin hamzah;tengku hasnan bin tengku abdul aziz;akrajas bin ali umar.  (2021).  metallic 2-dimensional 1t mos2 as electrode material for supercapacitors.  - .  . 

tengku hasnan bin tengku abdul aziz;akrajas bin ali umar.  (2021).  reduced graphene oxide as electron buffer layer for organic light emitting diodes (oleds).  - .  . 

mohd yusri bin abd rahman;akrajas bin ali umar.  (2021).  nickel sulfide-reduced graphene oxide composite film as counter electrode in dye-sensitized solar cell.  - .  . 

akrajas ali umar.  (2021).  fixing the interface for enhanced perovskite solar cell performance.  - research outreach.  1-4. 

akrajas bin ali umar;tengku hasnan bin tengku abdul aziz;mohd yusri bin abd rahman;mohd ambri bin mohamed.  (2021).  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.  - .  . 

akrajas bin ali umar;tengku hasnan bin tengku abdul aziz;mohd yusri bin abd rahman.  (2020).  high performance organometal halide perovskite solar cells utilizing high-surface energy (001) faceted anatase tio2 nanosheets.  - .  . 

p. susthitha menon a/p n v visvanathan;akrajas bin ali umar;dilla duryha binti berhanuddin.  (2020).  multi-parametric graphene-based spr biosensor utilizing kretschmann-based technique.  - .  . 

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. 

n. mustaffa. m. y. a. rahman. a. a. umar.  (2019).  dye-sensitized solar cell utili zing silver-doped reduced graphene oxide films counter electrode: influence of annealing temperature on its performance.  - the 4th malaysia-japan joint symposium on nanoelectronics 2019.  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.  - .  . 

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.  . 

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.  . 

akrajas bin ali umar;muhamad bin mat salleh;mohd yusri bin abd rahman.  (2018).  engineering the two-dimensional hexagonal honeycomb crystal of noble metal chalcogenide for high-performance optoelectronic materials..  - .  . 

s.n. sadikin, m.y.a. rahman & a.a. umar.  (2018).  tio2-zns and tio2-graphene films as photoanodes in dye-sensitized solar cell (dssc).  - .  . 

muhamad bin mat salleh, muhammad bin yahaya, burhanuddin bin yeop majlis, akrajas ali umar.  (2015).  bahan mampan & teknologi hijau untuk peranti berkaitan tenaga.  - .  . 

muhamad bin mat salleh, burhanuddin bin yeop majlis, akrajas ali umar, dee chang fu.  (2015).  surface-enhanced raman scattering effect of triangular gold nanoframes as ultra sensitive sensor to detect bisphenol a.  - .  . 

dee chang fu, burhanuddin bin yeop majlis, muhamad bin mat salleh, akrajas ali umar, azrul azlan bin hamzah.  (2015).  synthesis and characterization of chalcogenide semiconducting one-dimensional nanowires for phase change memory applications.  - .  . 

akrajas ali umar, muhamad bin mat salleh, mohd yusri bin abd rahman, muhammad bin yahaya.  (2014).  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 applica….  - .  . 

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.  - .  . 

norshafadzila mohammad naim, huda abdullah, akrajas ali umar, aidil abdul hamid, sahbudin shaari.  (2013).  synthesis of silver nanoparticles embedded in polyvinyl alcohol nanocomposite thin film with various temperatures and its performance of e.coli sensor.  - 27 th regional conference on solid state science & technology (rcssst27).  . 

m. deraman, e. taer, a.a. umar, n. h. basri, r. farma, awitderus, m.m. ishak.  (2011).  role of nano-particles in modifying contact performance between electrode and current collector of a supercapacitor.  - international workshop on nanotechnology-in the edge on convergence, 24-27 november 2011, ukm.  .