| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a high efficiency CIS-based solar cell by reducing leakage current without requiring any extra process. <P>SOLUTION: In the CIS-based thin-film solar cell 10 where a back electrode layer 14 divided by a pattern 1, a CIS-based light absorption layer 16 and a transparent conductive film are formed sequentially on a substrate 12, the back electrode layer 14 is provided, on the surface in contact with the CIS-based light absorption layer 16, with an intermediate layer 20 composed of a compound of a metal composing the back electrode layer 14 and a group VI element composing the CIS-based light absorption layer 16. The intermediate layer 20 includes a first intermediate layer portion 20a formed on the top face which is parallel with the substrate 12, and a second intermediate layer portion 20b formed on a lateral face which is perpendicular to the substrate 12 and facing the pattern 1. The thickness of the second intermediate layer portion 20b is greater than that of the first intermediate layer portion 20a. <P>COPYRIGHT: (C)2012,JPO&INPIT |
