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The properties of CdS thin films were investigated by applying atomic force microscopy (AFM), Raman and far-infrared spectroscopy. CdS thin films were prepared by using the thermal evaporation technique under base pressure 2×10 −5 torr. The quality of these films was investigated by AFM spectroscopy. We applied Raman scattering and far-infrared spectroscopy to investigate the optical properties...
We present in this work studies of photoluminescence at room temperature, AFM and optical transmission measurements of Cadmium Sulphide (CdS) films grown by the Closed Space Vapor Transport (CSVT) technique. Normally as-grown CdS-CSVT thin film samples do not show luminescence at room temperature, due mainly to the high density of deep non-radiative recombination centers at the band gap, thus in principle...
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