Electrodeposition of Cd, Te, CdS and CdTe on Platinum and ITO/glass electrodes. Surface characterization of CdS/ITO, CdTe/ITO and CdS/CdTe/ITO electrodes

Abstract

Electrodeposition of Cd and Te has been investigated on platinum and ITO(indium tin oxide)/glass electrodes to obtain the optimum deposition conditions of CdS and CdTe on ITO/glass electrodes. Formation of CdS and CdTe thin films by cathodic deposition on different substrates (Pt, ITO) is described along with the influence of the substrate, pH, deposition potential and concentration of ions. Surface morphology and stochiometry of the CdS. CdTe and CdS/CdTe/ITO electrodes have been studied by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS).