Review Article
R. Ganesh
Abstract
Thin films were prepared on a well cleaned glass substrate by economically simple chemical bath deposition (CBD) technique at 70 ± 5oC. In this paper, reports that the most important semiconductors materials from II – IV groups cadmium sulfide (CdS) thin films doped with different materials at same concentration. Copper (Cu), aluminum (Al), silver (Ag) and zinc (Zn) are the selected dopent materials. This paper presents the analysis of structural, optical and surface properties of the doped CdS thin films by X-ray diffractometer (XRD), UV-Vis-NIR spectrophotometer and scanning electron microscope (SEM) respectively. XRD studies showed all the doped CdS thin films exhibits amorphous in nature. Optical spectra of CdS thin films exhibit high transmittance in the visible region and high absorbance near Ultra-Violet (UV) range and surface smoothness is improved. Possible applications of the doped CdS thin films are also discussed.