| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a solar cell, and a manufacturing method therefor.SOLUTION: A solar cell includes a substrate, a first electrode layer on the substrate, a light absorption layer on the first electrode layer, and a buffer layer on the light absorption layer. The light absorption layer includes a first region having a graded band-gap energy profile, a second region having a graded band-gap energy profile, and a third region having a flat band-gap energy profile between the first and second regions.</p> |
