发明名称 |
IMPROVED PHOTOVOLTAIC CELL AND PRODUCTION THEREOF |
摘要 |
An efficient photovoltaic cell, and its process of manufacture, is disclosed wherein the back surface p-n junction is removed from a doped substrate having an oppositely doped emitter layer. A front surface and edges and optionally the back surface periphery are masked and a back surface etch is performed. The mask is not removed and acts as an anti-reflective coating, a passivating agent, or both. The photovoltaic cell retains an untextured back surface whether or not the front is textured and the dopant layer on the back surface is removed to enhance the cell efficiency. Optionally, a back surface field is formed. |
申请公布号 |
WO2004070850(A2) |
申请公布日期 |
2004.08.19 |
申请号 |
WO2004US02489 |
申请日期 |
2004.01.29 |
申请人 |
BP CORPORATION NORTH AMERICA INC.;NARAYANAN, SRINIVASAMOHAN;KUMAR, BIKASH |
发明人 |
NARAYANAN, SRINIVASAMOHAN;KUMAR, BIKASH |
分类号 |
H01L21/20;H01L31/0216;H01L31/0236;H01L31/068;H01L31/18 |
主分类号 |
H01L21/20 |
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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