| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solar cell having higher energy conversion efficiency. <P>SOLUTION: A solar cell of the present invention comprises a p-type semiconductor layer, an n-type semiconductor layer, and a light-absorbing semiconductor layer which is sandwiched between the p-type semiconductor layer and the n-type semiconductor layer and has at least two energy levels in a forbidden band of the light-absorbing semiconductor layer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
