Abstract
Lead selenide (PbSe) thin films have been deposited on amorphous glass substrates at room temperature, using the simple chemical bath deposition technique. Lead sulfate and sodium selenosulfate were used as the source materials to obtain lead selenide films. Transmittance, absorption, optical bandgap and refractive index of the films were investigated via the UV–vis spectrum. Amorphous form was observed in the XRD pattern. The structural and optical properties of PbSe thin films produced at different pH were analyzed. SEM analysis was performed for analyzing the surface of the films. Some properties of the films were observed to vary with pH and these properties were investigated according to the change of pH, for pH values of 5–8. Optical bandgap varied with pH between 1.46[Formula: see text]eV and 1.75[Formula: see text]eV. Film thickness also changed with pH from 465[Formula: see text]nm to 1765[Formula: see text]nm.
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