The Effect of Ammonia Salt Concentration on the Properties of Chemical Bath Deposited CdS Thin Films

Abstract

Cadmium sulphide films were grown on glass substrates by chemical bath deposition (CBD) from a bath containing CdCl₂, NH₄Cl, NH₄OH and thiourea. The effect of ammonium chloride on the deposition rate, structure and optical properties of the CdS thin films has been considered in this work. The XRD patterns show that the films have polycrystalline structure. The deposition time decreases with decreasing the concentration of NH₄Cl. The surface morphology, Optical properties and the band gap value reported in this work is in good agreement with that reported in the literature.