Effect of thickness on Structural, optical and morphological properties of electrodeposited nanocrystalline CdTe thin films

Cadmium Telluride thin films were deposited on freshly prepared, high-quality CdS films, using a fast electrodeposition method. It is presented that, only 30 min deposition time is enough to prepare CdTe films with thicknesses of about 1 micrometer. The deposition of n-i-p-cadmium telluride was carried out by varying the deposition voltage from 2.1 V to 1.8 V and 1.5 V. The exact thickness of the prepared films was determined using cross sectional scanning electron microscopy (FESEM). The structure of CdTe film deposited on CdS/FTO/glass substrate, was determined by studying the variation of the XRD picks by increasing the thickness of CdTe layer. Effect of thickness on optical properties and surface morphology of deposited films was also discussed.