Abstract
The CuS thin films were deposited on glass substrates using the chemical bath deposition technique at 65⁰C temperature from aqueous solutions of copper sulphate and thiourea in which tartaric acid solution were employed as the complexing agent. HRXRD studies reveal covellite CuS, having hexagonal primitive crystal structure. AFM studies shows morphology of CuS thin film as spherical particles, and spiky cones showing probability of nanorod formation of CuS. The grains are distributed homogeneously with a pattern consistent with polycrystalline film. Lower value of RMS value for CuS 8 sample of thin film (15.5907nm) shows that less light is scattered by an optical surface, and hence better the surface quality of thin film. Absorbance of thin film observed between 300-350 nm. The highest transmittance of the as-grown film in the entire wavelength of interest was recorded as 50%.
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