| 发明名称 |
MULTI-JUNCTION SOLAR CELL AND USE THEREOF |
| 摘要 |
The present invention relates to a multi junction solar cell having at least four p-n junctions. The individual subcells thereby have band gaps of 1.9 eV, 1.4 eV, 1.0 eV and 0.7 eV. The multi junction solar cells according to the invention are used in space and also in terrestrial concentrator systems. |
| 申请公布号 |
US2015053257(A1) |
申请公布日期 |
2015.02.26 |
| 申请号 |
US201314383458 |
申请日期 |
2013.03.08 |
| 申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
Dimroth Frank;Bett Andreas |
| 分类号 |
H01L31/0725;H01L31/0232;H01L31/18;H01L31/074;H01L31/0216 |
主分类号 |
H01L31/0725 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A multi junction solar cell having at least four p-n junctions comprising a first, rear-side germanium subcell which has a p-n junction, a second and a third subcell made of III-V semiconductors and also at least one further, front-side subcell made of III-V semiconductors,
wherein the second subcell has a lattice constant which is greater by at least 1% than the lattice constant of all the other subcells and the second subcell is connected to the adjacent subcells via a metamorphic buffer layer for adaptation to the lattice constant of the adjacent subcells and, on the opposite side, is connected to the adjacent subcell via a wafer-bonding connection. |
| 地址 |
München DE |
