Low-cost solar cells and methods for fabricating low cost substrates for solar cells

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United States of America Patent

PATENT NO 8796066
APP PUB NO 20100317146A1
SERIAL NO

12862334

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
SUNPREME LTDCRICKET SQUARE HUTCHINS DRIVE PO BOX 2681 GRAND CAYMAN KY1-1 111

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ma, Wen Fremont, US 32 693
Sinha, Ashok Los Altos Hill, US 47 4480

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