Browsing by Author "ard@ukm.my"
Now showing items 1-11 of 11
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Characterization of cuprous oxide thin films on n-Si substrate prepared by sol-gel spin coating
Dewi Suriyani, Che Halin, Dr.; Ibrahim, Abu Talib, Prof. Dr.; Muhammad Azmi, Abd Hamid; Abdul Razak, Daud (MASS Malaysia, 2008)Cuprous oxide films were successfully grown onto a n-Si substrate with (100) orientation via sol-gel spin-coating method at room temperature in air followed by annealing in 5% H2 + 95% N2 atmosphere. The annealed temperatures ... -
Cuprous oxide thin films for a photoelectrochemical cell of ITO/Cu 2O/PVC-LiClO 4/graphite
Dewi Suriyani, Che Halin; Ibrahim, Abu Talib, Prof. Dr.; Daud, Abd Razak; Muhammad Azmi, Abdul Hamid, Dr. (Trans Tech Publications Inc., 2012)Cuprous oxide (Cu 2O) thin films were formed onto indium tin oxide (ITO) coated glass substrate by sol-gel spin coating technique using different additives namely polyethylene glycol and ethylene glycol. It was found that ... -
The effect of spin coating rate on morphology and optical properties of cuprous oxide thin film prepared by sol-gel technique
Dewi Suriyani, Che Halin, Dr.; Ibrahim, Abu Talib, Prof. Dr.; Abdul Razak, Daud; Muhammad Azmi, Abd Hamid (Australian Ceramic Society, 2010)Cuprous oxide thin films were successfully grown on indium tin oxide (ITO) coated glass by sol-gel spin coating using diethanolamine (DEA) as a solubility agent. The films were annealed at 350 °C in 5% H2 + 95% N 2 atmosphere. ... -
Electrochemical corrosion behaviour of Mg-(Ca,Mn) sacrificial anodes
Shaiful Rizam, Shamsudin; Azmi, Rahmat, Assoc. Prof. Dr.; Mahdi, Che Isa; Mohd Nazree, Derman; Abdul Razak, Daud (Trans Tech Publications, 2013)The aim of the study is to identify the effect of Ca in Mg-Mn alloy on electrochemical corrosion behavior for the development of high performance sacrificial anode. Mg alloys were fabricated by casting technique under an ... -
An electrochemical impedance spectroscopy study of Al-Zn and Al-Zn-Sn Alloys in tropical seawater
M. C., Isa; Abdul Razak, Daud; M. Y., Ahmad; M., Daud; Shaiful Rizam, Shamsudin; N., Hassanuddin; M. S., Din Yati; M. M., Muhammad (Trans Tech Publications, Switzerland, 2012)In this paper, a study on the electrochemical behaviour and electrical properties of Al-Zn and Al-Zn-Sn alloys in tropical seawater using open circuit potential (OCP) measurement and electrochemical impedance spectroscopy ... -
Mechanism of current transport for a photoelectrochemical cells of ITO/Cu2O/PVC-LiClO4/graphite
Dewi Suriyani, Che Halin, Dr.; Haiza, Haroon; Ibrahim, Abu Talib, Prof. Dr.; Abdul Razak, Daud, Prof. Dr.; Muhammad Azmi, Abd Hamid, Assoc. Prof. Dr. (Trans Tech Publications, 2013)This paper deals with the current transport mechanism of solid state photoelectrochemical cells of ITO/Cu2O/PVC-LiClO4/graphite as well as the physical properties of a component of a device affecting its performance. The ... -
Physical properties of cuprous oxide thin films grown on n-Si substrate by sol-gel spin coating
Dewi Suriyani, Che Halin, Dr.; Ibrahim, Abu Talib, Prof. Dr.; Abdul Razak, Daud; Muhammad Azmi, Abd Hamid (Penerbit Universiti Kebangsaan Malaysia (UKM), 2009)Cu2O films were grown on n-Si substrates via the sol-gel spin-coating method. The films were annealed under 5% H2 + 95% N2 atmosphere at 350°C, 450°C and 550°C. Diffractogram obtained by the grazing angle x-ray diffractometry ... -
Preparation of photoelectrochemical cell of ITO/Cu2O/PVC-LiClO4/graphite using Cu2O films as an active layer
Dewi Suriyani, Che Halin; Haiza, Haroon; Ibrahim, Abu Talib; Abdul Razak, Daud; Muhammad Azmi, Abd Hamid (Trans Tech Publications, 2014-02)Cuprous oxide (Cu2O) thin films were successfully grown on indium tin oxide (ITO) coated glass by sol-gel spin coating using diethanolamine (DEA) as a solubility agent. The films were annealed at 350 °C in 5% H2 + 95% N2 ... -
Preparation of photoelectrochemical cell of ITO/Cu2O/PVC-LICLO4/graphite using Cu2O films as an active layer
Dewi Suriyani, Che Halin, Dr.; Haiza, Haroon; Ibrahim, Abu Talib, Prof. Dr.; Abdul Razak, Daud, Prof. Dr; Muhammad Azmi, Abd Hamid, Assoc. Prof. Dr. (Trans Tech Publications, 2014)Cuprous oxide (Cu2O) thin films were successfully grown on indium tin oxide (ITO) coated glass by sol-gel spin coating using diethanolamine (DEA) as a solubility agent. The films were annealed at 350 °C in 5% H2 + 95% N2 ... -
Preparation of submicron Al-Ti Alloy particles by mechanical alloying
Abdul Razak, Daud; Adolf Asih, Supriyanto (Universiti Malaysia Perlis, 2009-12-01)Introduction: Mechanical alloying (MA) is a solid-state powder processing technique involving repeated welding, fracturing and re-welding of powder particles in a high-energy ball mill [1-3]. MA has been used to synthesize ... -
XPS and optical studies of different morphologies of ZnO nanostructures prepared by microwave methods
Rashad, Al-Gaashani; Shahidan, Radiman, Prof. Dr.; Abdul Razak, Daud, Prof. Dr.; Nouar, Tabet, Prof. Dr.; Yarub, Al-Douri, Assoc. Prof. Dr. (Elsevier, 2013-04)Zinc oxide (ZnO) nanostructures of various morphologies were prepared using a microwave-assisted aqueous solution method. Herein, a comparative study between three different morphologies of ZnO nanostructures, namely ...