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Int. J. Electroactive Mater. 1 (2013) 23-27

Effects of Ethylene Glycol Concentration on Cadmium Sulphide Nanowires Growth

Chan Kok Sheng*, Mohd Rozi Mat Dris, Mohd Ikmar Nizam Isa, Mohammad Ismail

Department of Physical Sciences, Universiti Malaysia Terengganu, Kuala Terengganu, Terengganu, Malaysia
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Abstract : One dimensional (1-D) cadmium sulfide (CdS) nanowires were produced by L-cystein-assisted solvothermal methods. A series of experiments were carried out with different concentrations of ethylene glycol. X-ray diffraction (XRD) and scanning electron microscope(SEM)results show that the crystalinity of CdS nanowires structures are depending on the ethylene glycol. Moreover, with the concentration of ethylene glycol at 16 Molar, continuous nanowires with regular and smooth morphology were obtained. The width of each nanowires recorded were between 50-65 nm. The band gap of the samples measured by UV-vis spectroscopy increases from 2.42 eV to 2.54 eV with the increase of ethylene glycol concentration. The mechanism for L-cystein reaction with cadmium during the synthesis of the nanowires was also discussed.

Keywords : Cadmium Sulphide,nanowires,sovolthermal,band ga