Optimization of Process Parameters of Chemical Bath Deposition of

Chemical bath deposition of Cd1-xZnxS is achieved by the slow release of sulphide ions and the controlled release of cadmium and zinc ions in solution. However the difference in the solubility products of CdS and ZnS by several orders usually narrows the chalcogenide operating window, this coupled with the difference in their stability constant makes Cd1-xZnxS CBD process very difficult. We report the deposition and optimization of the growth parameters that maximizes the thickness of the deposited film in alkaline solution. The film showed an optical transmittance of about 80%, a determine band gap of 2.49eV with a molar composition x of 0.09.