Investigation of photomоdified semiconductor/ electrolyte interfaces : The n-lnSe/CulSe

An overlayer of CulSe3-Se° of i to 2 µm was photogenerated at the surface of n-InSe electrodes in a solution of copper polyiodide. The morphology, chemical composition, and crystal structure of these films were characterized by SEM, EDAX, X-ray diffraction under grazing incidence, ESCA and SIMS. The spectral properties were characterized by spectral photoresponse and photoreflectance and they were correlated with photoelectrochemicl1 and EBIC studies in order to determine the mechanism of charge transport across such layers