A solar cell with a heightened open-circuit voltage and improved junction quality of the interface between an interfacial layer (or buffer layer) and a thin-film light absorbing layer is disclosed. A thin-film solar cell is fabricated on a glass substrate and includes a metallic back electrode, a light...http://www.google.com/patents/US5981868?utm_source=gb-gplus-sharePatent US5981868 - Thin-film solar cell comprising thin-film light absorbing layer of chalcopyrite multi-element compound semiconductor
