Invention Grant
US08815637B2 Conductive paste for photovoltaic cell and method of producing photovoltaic cell element using the same
有权
用于光伏电池的导电浆料及使用其的生产光伏电池元件的方法
- Patent Title: Conductive paste for photovoltaic cell and method of producing photovoltaic cell element using the same
- Patent Title (中): 用于光伏电池的导电浆料及使用其的生产光伏电池元件的方法
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Application No.: US13824879Application Date: 2011-09-30
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Publication No.: US08815637B2Publication Date: 2014-08-26
- Inventor: Kotaro Umeda , Tomoko Yoshimi , Shuhei Katayama , Yoshio Miura , Toshihiro Iwaida , Takeshi Nakatani
- Applicant: Kotaro Umeda , Tomoko Yoshimi , Shuhei Katayama , Yoshio Miura , Toshihiro Iwaida , Takeshi Nakatani
- Applicant Address: JP Kyoto
- Assignee: KYOCERA Corporation
- Current Assignee: KYOCERA Corporation
- Current Assignee Address: JP Kyoto
- Agency: Procopio, Cory, Hargreaves & Savitch LLP
- Priority: JP2010-220554 20100930; JP2011-014256 20110126
- International Application: PCT/JP2011/072602 WO 20110930
- International Announcement: WO2012/043811 WO 20120405
- Main IPC: H01L21/00
- IPC: H01L21/00

Abstract:
A conductive paste for a photovoltaic cell and a method for producing the photovoltaic cell are disclosed. The conductive paste includes a silver powder, glass frit and a sintering inhibitor that suppresses sintering of the silver powder. The sintering inhibitor contains at least one substance selected from aluminum oxide, silicon oxide and silicon carbide. The method includes forming a first anti-reflective layer on a first region of a main surface of a semiconductor substrate; forming a second anti-reflection layer on a second region of the main surface which is different from the first region; coating the electrically conductive paste onto the second anti-reflective layer on the second anti-reflection layer; and forming a surface electrode in the second region by reacting the second anti-reflection layer with the electrically conductive paste at an elevated temperature.
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