SOLAR CELL AND SOLAR CELL PRODUCTION METHOD

摘要

A solar cell according to the present invention includes as a light absorption layer a p-type semiconductor layer having a gradient of X/(In+X) ratios in a film thickness direction and containing an Ib group element, In, an element X, and a VIb group element, wherein a ratio C between values of an X/(In+X) ratio A of an uppermost surface of an p-type semiconductor layer and an X/(In+X) ratio B at a depth at which a smallest X/(In+X) ratio in a film is exhibited is represented by Expressions (1) and (2): C = A/B... (1); and 1.1