ELECTROCHEMICAL PHOTOCELL USING CdS–ZnSe SOLID SOLUTION FILM ANODE

Abstract
Epitaxial films of CdS–ZnSe solid solution were prepared by vacuum evaporation from the source composed of equimolar amounts of CdS and ZnSe onto the (III) thin films of a NaCl–NaBr solid solution system. The action spectrum of the electrochemical photocell using these epitaxial films as photoanodes in a S2−-containing electrolyte was shifted to the longer wavelength region by about lOOnm compared with a CdS thin film anode. The open-circuit voltage and the short-circuit current were found to be 0.54 V and 0.7 mA/cm2, respectively, under sunlight of 62 mW/cm2.