发明名称 |
Heterojunction V-groove multijunction solar cell |
摘要 |
A solar cell is disclosed with V-grooves which are series connected, but electrically isolated, indirect bandgap solar cells which are responsive to different light frequencies on both sides of a semi-insulating optically transparent substrate. The device has a very high conversion efficiency of approximately 40% and high open-circuit voltage and low series resistance. An exemplary structure in accordance with this disclosure has a series of silicon V-groove cells on one side and another series of GaAlAs V-groove cells on the other side. The cells are of generally trapezoidal cross-section. The difference between the characteristics of the Si cell and the GaAlAs cell is matched by control of the number of V-grooves.
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申请公布号 |
US4295002(A) |
申请公布日期 |
1981.10.13 |
申请号 |
US19800161820 |
申请日期 |
1980.06.23 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CHAPPELL, TERRY I.;WOODALL, JERRY M. |
分类号 |
H01L31/04;H01L25/04;H01L27/142;H01L31/0352;H01L31/072;H01L31/10;(IPC1-7):H01L31/06 |
主分类号 |
H01L31/04 |
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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