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Study of optical and structural properties of cds thin films by various cost-effective techniques

Author:

Sindhuja, S., Hema, R. and Pavithra, G.

Subject Area:

Physical Sciences and Engineering

Abstract:

Cadmium Sulphide (CdS) thin films were prepared by Chemical Bath Deposition, SILAR and by Spray pyrolysis techniques onto a cleaned glass substrates. The films were characterized by X-ray diffraction (XRD) and various structural parameters were reported. The spherical shaped clusters and the presence of elemental constituents were characterized using scanning electron microscope (SEM) and energy dispersive X-Ray analysis (EDAX) respectively. The absorption coefficient α of the investigated samples was calculated from transmission and absorption spectra and the direct band gap energy were obtained from the optical absorption measurements. The photoluminescence spectra show the green emission band of the samples.

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