Electrodeposited CdS thin films and their application in CdS/CdTe solar cells

Abstract

Technologically the electrochemical deposition method, through the influence of potential, temperature, pH and composition of reactants, offers excellent control over the properties of semiconductors. Using a potentiostatic approach, CdS films were deposited on tin oxide coated glass substrates under different conditions. The films were found to be smooth, uniform and adherent with a small grain size. X-ray diffraction analysis indicated a hexagonal phase rather than the cubic phase. Electrochemical deposition parameters were studied to obtain the optimum conditions for solar cell CdS thin films.