Growth of Cadmium Sulphide Nanorods Using Chemical Bath Deposition Technique by Varying Cd/S Concentration

NITINKUMAR M SHAH

doi:10.4028/www.scientific.net/AMR.894.328

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 894Growth of Cadmium Sulphide Nanorods Using Chemical...

Growth of Cadmium Sulphide Nanorods Using Chemical Bath Deposition Technique by Varying Cd/S Concentration

Abstract:

Cadmium sulfide (CdS) thin films were prepared using the chemical bath deposition method onto glass substrates at constant reaction temperature of 85 °C. Cadmium sulphate and thiourea were used as sources of Cd⁺² and S^-2ions respectively. Films were prepared by varying cadmium concentration (viz. 1, 5 and 10 mM) keeping thiourea concentration constant (20 mM). These films were examined for their structural and surface morphologies by X-ray diffraction analysis (XRD) and atomic force microscopy (AFM). Analysis of results suggests that CdS nanorods grow with cadmium sulphate concentration of 10 mM. The optical properties were investigated using UVVIS spectrophotometer. The values of optical band gaps as-calculated from optical transmission measurements suggests that films have energy band gap in the range of 2.38-2.32eV decreases with increase of cadmium concentration.

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Advanced Materials Research (Volume 894)

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328-331

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https://doi.org/10.4028/www.scientific.net/AMR.894.328

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Online since:

February 2014

Authors:

NITINKUMAR M SHAH

Keywords:

Atomic Force Microscopy (AFM), Cadmium Sulphide Thin Films, Nanorods, Optical Analysis, XRD

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