Improved solar cell and method of making same

Details Improved solar cell and method of making same Improved solar cell and method of making same

H - Electricity

01

L

H01L 31/06 (2006.01) H01L 31/02 (2006.01) H01L 31/0224 (2006.01) H01L 31/048 (2006.01) H01L 31/068 (2006.01) H01L 31/18 (2006.01)

Patent

CA 2113446

2113446 9324961 PCTABS00028 The cell provided by the invention includes a silicon substrate (20) having a shallow p-n junction (22) adjacent its front surface, a plurality of silver soldering pads (16) bonded to the rear surface (14) of the substrate, an aluminum contact (12) on the rear surface of the substrate having openings (2) that expose at least portions of said silver pads (16), a silver contact (4) surrounded by an antireflection coating on the front substrate, and a glass layer (18) overlying the aluminum contact (12) so as to protect it against oxidation and corrosion. The glass layer (18) has windows (28) exposing portions of the soldering pads for solder attachment of connecting wire ribbons.

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