Invention Grant
- Patent Title: Multi-crystalline silicon-germanium bulk crystal for use as a solar cell and method of making
- Patent Title (中): 用作太阳能电池的多晶硅锗体晶及其制造方法
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Application No.: US11176389Application Date: 2005-07-08
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Publication No.: US07750232B2Publication Date: 2010-07-06
- Inventor: Kazuo Nakajima , Wugen Pan , Kozo Fujiwara , Noritaka Usami
- Applicant: Kazuo Nakajima , Wugen Pan , Kozo Fujiwara , Noritaka Usami
- Applicant Address: JP Wakayama
- Assignee: Sumco Solar Corporation
- Current Assignee: Sumco Solar Corporation
- Current Assignee Address: JP Wakayama
- Agency: Clark & Brody
- Main IPC: H01L25/00
- IPC: H01L25/00
Abstract:
A multi-crystalline silicon germanium bulk crystal with microscopic compositional distribution is adapted for use in solar cells to substantially increase conversion efficiency. By controlling the average Ge concentration between 0.1 and 8.0 mole percent, significant improvements are attained with respect to short circuit current density and conversion efficiency.
Public/Granted literature
- US20070006915A1 Multi-crystalline silicon-germanium bulk crystal for use as a solar cell and method of making Public/Granted day:2007-01-11
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