Growth and characterization of copper indium(1-x) gallium(x) selenium(2) and copper indium sulfur(2y) selenium(2-2y) semiconductor alloys and evaluation of their electrochemical solar cells in iodine(3)ion/iodide-electrolyte

Crystals of CuIn;The band gap shift for these alloy systems with composition was established by photo-reflectance studies. The following band gap vs composition relationships were found.;Chemical analysis of these bulk crystals were performed using Inductively Coupled Plasma Spectroscopy (ICP). The results of this method were reproducible within ;X ray diffraction studies were used to establish a and c axis lattice parameters. Linear relationships were found for the composition dependence of the lattice parameters.;Photoluminescense studies on these alloys indicate that for CuIn;Semiconductor electrodes for these alloys were made by using In-Hg as back contact. Three-electrode photoelectrochemical cells were utilized using the standard calomel reference electrode and C as counter electrode. n-type CuInS...