Solar Energy Materials and Solar Cells, Vol.75, No.1-2, 87-92, 2003
Thin films of Cu(In,Ga)Se-2 and ordered vacancy compound prepared by thermal crystallization and their photovoltaic applications
Thin films of Cu-In-Ga-Se alloy system with various composition were prepared by thermal crystallization from In/CuInGaSe/In precursor. Electron probe microanalysis and X-ray diffraction study revealed that these samples were assigned to chalcopyrite Cu(In,Ga)Se, or ordered vacancy compound Cu(In,Ga)(2)Se-3.5. Solar cell with ZnO:A1/i-ZnO/CdS/Cu(In,Ga)Se-2/Mo/soda-lime glass substrate structure was fabricated by using thermal crystallization technique, and demonstrated a 9.58% efficiency without AR-coating. (C) 2002 Elsevier Science B.V. All rights reserved.