Invention Application
- Patent Title: SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME
- Patent Title (中): 太阳能电池及其制造方法
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Application No.: US15235955Application Date: 2016-08-12
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Publication No.: US20170047459A1Publication Date: 2017-02-16
- Inventor: Mann YI , Daeyong LEE , Jeongkyu KIM , Junyong AHN
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR SEOUL
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR SEOUL
- Priority: KR10-2015-0113607 20150812
- Main IPC: H01L31/0392
- IPC: H01L31/0392 ; H01L31/18 ; H01L31/0216 ; H01L31/028 ; H01L31/0224 ; H01L31/068

Abstract:
A solar cell and a method for manufacturing the same are disclosed. The method for manufacturing the solar cell includes injecting impurities of a second conductive type opposite a first conductive type into an entire first surface of a semiconductor substrate containing impurities of the first conductive type, the semiconductor substrate having the first surface, a side surface, and a second surface opposite the first surface, forming a doping barrier layer on the entire first surface and the entire side surface of the semiconductor substrate, and at an edge portion of the second surface of the semiconductor substrate, injecting the impurities of the first conductive type into the second surface of the semiconductor substrate at which the doping barrier layer is not formed, at a higher concentration than the semiconductor substrate, performing a thermal process on the semiconductor substrate to simultaneously form an emitter region of the second conductive type at the entire first and side surfaces of the semiconductor substrate and a back surface field region of the first conductive type at the second surface of the semiconductor substrate, and removing the doping barrier layer.
Information query
IPC分类: