发明名称 |
Four junction inverted metamorphic multijunction solar cell with two metamorphic layers |
摘要 |
A multijunction solar cell including an upper first solar subcell having a first band gap; a second solar subcell adjacent to the first solar subcell and having a second band gap smaller than the first band gap; a first graded interlayer adjacent to the second solar subcell; the first graded interlayer having a third band gap greater than the second band gap; and a third solar subcell adjacent to the first graded interlayer, the third subcell having a fourth band gap smaller than the second band gap such that the third subcell is lattice mismatched with respect to the second subcell. A second graded interlayer is provided adjacent to the third solar subcell; the second graded interlayer having a fifth band gap greater than the fourth band gap; and a lower fourth solar subcell is provided adjacent to the second graded interlayer, the lower fourth subcell having a sixth band gap smaller than the fourth band gap such that the fourth subcell is lattice mismatched with respect to the third subcell. |
申请公布号 |
EP2187451(A2) |
申请公布日期 |
2010.05.19 |
申请号 |
EP20090013431 |
申请日期 |
2009.10.23 |
申请人 |
EMCORE CORPORATION |
发明人 |
CORNFELD, ARTHUR;CHO, BENJAMIN |
分类号 |
H01L31/078 |
主分类号 |
H01L31/078 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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