发明名称 |
Broad spectrum solar cell |
摘要 |
An alloy having a large band gap range is used in a multijunction solar cell to enhance utilization of the solar energy spectrum. In one embodiment, the alloy is In1-xGaxN having an energy bandgap range of approximately 0.7 eV to 3.4 eV, providing a good match to the solar energy spectrum. Multiple junctions having different bandgaps are stacked to form a solar cell. Each junction may have different bandgaps (realized by varying the alloy composition), and therefore be responsive to different parts of the spectrum. The junctions are stacked in such a manner that some bands of light pass through upper junctions to lower junctions that are responsive to such bands.
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申请公布号 |
US2004118451(A1) |
申请公布日期 |
2004.06.24 |
申请号 |
US20030445711 |
申请日期 |
2003.05.27 |
申请人 |
WALUKIEWICZ WLADYSLAW;YU KIN MAN;WU JUNQIAO;SCHAFF WILLIAM J. |
发明人 |
WALUKIEWICZ WLADYSLAW;YU KIN MAN;WU JUNQIAO;SCHAFF WILLIAM J. |
分类号 |
H01L31/00;H01L31/068;H01L31/072;(IPC1-7):H01L31/00 |
主分类号 |
H01L31/00 |
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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