Abstract
The focus of the ongoing research is to study constancy of chemical bath deposition (CBD) of CdS thin film. CdS films have been deposited using thiourea and cadmium sulphate in a non-aqueous medium at 80 °C. The various physical preparative parameters and the deposition conditions, such as the deposition time and temperature, concentrations of the chemical species, pH, speed of mechanical stirring, etc., were optimized to yield good quality films. The as-prepared sample is tightly adherent to the substrate’s support, less smooth, diffusely reflecting and was analyzed for composition. The synthesized film is characterized using X-ray diffraction (XRD), UV-VIS absorption spectroscopy and techniques in order to study its structural, optical, compositional properties. It appears that the composites are rich in Cd. The grown CdS thin film had an orange-red color. A band gap of CdS thin film is 2.41 eV. The average crystallite size of the CdS film was 21.50 nm.
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