Invention Grant
US08796066B2 Low-cost solar cells and methods for fabricating low cost substrates for solar cells
有权
低成本的太阳能电池和用于制造用于太阳能电池的低成本基板的方法
- Patent Title: Low-cost solar cells and methods for fabricating low cost substrates for solar cells
- Patent Title (中): 低成本的太阳能电池和用于制造用于太阳能电池的低成本基板的方法
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Application No.: US12862334Application Date: 2010-08-24
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Publication No.: US08796066B2Publication Date: 2014-08-05
- Inventor: Ashok Sinha , Wen Ma
- Applicant: Ashok Sinha , Wen Ma
- Applicant Address: US CA Sunnyvale
- Assignee: Sunpreme, Inc.
- Current Assignee: Sunpreme, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agent Joseph Bach
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L31/18 ; H01L31/075
Abstract:
Substrates for solar cells are prepared by etching a plurality of metallurgical grade wafers; depositing aluminum layer on backside of each wafer; depositing a layer of hydrogenated silicon nitride on front surface of each wafer; annealing the wafers at elevated temperature; removing the hydrogenated silicon nitride without disturbing the aluminum layer. A solar cell is then fabricated on the front surface of the wafer while the aluminum remain to serve as the back contact of the cell.
Public/Granted literature
- US20100317146A1 LOW-COST SOLAR CELLS AND METHODS FOR FABRICATING LOW COST SUBSTRATES FOR SOLAR CELLS Public/Granted day:2010-12-16
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