Invention Application
US20110265864A1 SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR FORMING IMPURITY REGION
审中-公开
太阳能电池及其制造方法，以及形成污染区域的方法
- Patent Title: SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR FORMING IMPURITY REGION
- Patent Title (中): 太阳能电池及其制造方法，以及形成污染区域的方法
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Application No.: US13181288Application Date: 2011-07-12
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Publication No.: US20110265864A1Publication Date: 2011-11-03
- Inventor: Hyungseok KIM , Youngho Choe , Jaewon Chang
- Applicant: Hyungseok KIM , Youngho Choe , Jaewon Chang
- Priority: KR10-2009-0020533 20090311
- Main IPC: H01L31/0352
- IPC: H01L31/0352 ; H01L31/02
Abstract:
A Solar cell includes a substrate of a first conductive type; a first emitter portion positioned in the substrate and containing impurities of a second conductive type opposite the first conductive type; a second emitter portion positioned at the first emitter portion and containing impurities of the second conductive type, the second emitter portion having an impurity concentration higher than an impurity concentration of the first emitter portion; a first electrode connected to the second emitter portion; and a second electrode connected to the substrate, wherein the second emitter portion has a thickness equal to or less than a thickness of the first emitter portion.
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