METHOD FOR MANUFACTURING CZTS BASED THIN FILM HAVING DUAL BAND GAP SLOPE, METHOD FOR MANUFACTURING CZTS BASED SOLAR CELL HAVING DUAL BAND GAP SLOPE AND CZTS BASED SOLAR CELL THEREOF

摘要

A method for manufacturing a CZTS based thin film having a dual band gap slope, comprising the steps of: forming a Cu₂ZnSnS₄ thin film layer; forming a Cu₂ZnSn(S,Se)₄ thin film layer; and forming a Cu₂ZnSnS₄ thin film layer. A method for manufacturing a CZTS based solar cell having a dual band gap slope according to another aspect of the present invention comprises the steps of: forming a back contact; and forming a CZTS based thin film layer on the back contact by the method described above.