| 摘要 |
A compound solar cell having a higher conversion efficiency and a method for producing the compound solar cell at lower costs are provided. The compound solar cell includes a CIGS light absorbing layer (3), a buffer layer (5) and a front side electrode layer (6) provided on a substrate (1). An interface layer (4) made of a mixed crystal compound having a composition represented by the following general formula (1) is provided between the CIGS light absorbing layer (3) and the buffer layer (5) : Zn(O x , S 1-x ) ... (1), wherein x is 0.9 < X ‰¤ 1 or 0 ‰¤ X < 0.1. |
