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Method and apparatus for multi-junction solar cell structure with high band gap heterojunction middle cell
Method and apparatus for multi-junction solar cell structure with high band gap heterojunction middle cell
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机译：具有高带隙异质结中间电池的多结太阳能电池结构的方法和装置
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摘要
A method and a multijunction solar device having a high band gap heterojunction middle solar cell are disclosed. In one embodiment, a triple-junction solar device includes bottom, middle, and top cells. The bottom cell has a germanium (Ge) substrate and a buffer layer, wherein the buffer layer is disposed over the Ge substrate. The middle cell contains a heterojunction structure, which further includes an emitter layer and a base layer that are disposed over the bottom cell. The top cell contains an emitter layer and a base layer disposed over the middle cell.
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