Some investigations on thickness-dependent electrical behaviour of CdS:As/electrolyte solar cells

Abstract

An investigation has been made into the effect of photoelectrode thickness on the photovoltaic properties of cadmium sulphide/electrolyte solar cells. CdS photoelectrodes of various thicknesses doped with 0.25 wt.% arsenic were prepared by a chemical deposition process on plane mirror smooth stainless steel substrates. An electrode/ electrolyte junction cell was designed for use in a glass cuvette and has been analysed in terms of its electrical parameters. The thickness of the photoelectrode was found to cause significant changes in cell parameters such as short-circuit current, open-circuit voltage, series and shunt resistances, efficiency, fill factor, junction quality factors and flat band potential.