发明申请
US20100122724A1 Four Junction Inverted Metamorphic Multijunction Solar Cell with Two Metamorphic Layers
审中-公开
具有两个变质层的四连结倒置变质多功能太阳能电池
- 专利标题: Four Junction Inverted Metamorphic Multijunction Solar Cell with Two Metamorphic Layers
- 专利标题(中): 具有两个变质层的四连结倒置变质多功能太阳能电池
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申请号: US12271192申请日: 2008-11-14
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公开(公告)号: US20100122724A1公开(公告)日: 2010-05-20
- 发明人: Arthur Cornfeld , Benjamin Cho
- 申请人: Arthur Cornfeld , Benjamin Cho
- 申请人地址: US NM Albuquerque
- 专利权人: Emcore Solar Power, Inc.
- 当前专利权人: Emcore Solar Power, Inc.
- 当前专利权人地址: US NM Albuquerque
- 主分类号: H01L31/00
- IPC分类号: H01L31/00 ; H01L21/02
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.
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