Front contact solar cell with formed emitter

Cousins, Peter John

Title: Front contact solar cell with formed emitter

Patent · Tue Nov 04 00:00:00 EST 2014

OSTI ID:1163238

Cousins, Peter John

A bipolar solar cell includes a backside junction formed by an N-type silicon substrate and a P-type polysilicon emitter formed on the backside of the solar cell. An antireflection layer may be formed on a textured front surface of the silicon substrate. A negative polarity metal contact on the front side of the solar cell makes an electrical connection to the substrate, while a positive polarity metal contact on the backside of the solar cell makes an electrical connection to the polysilicon emitter. An external electrical circuit may be connected to the negative and positive metal contacts to be powered by the solar cell. The positive polarity metal contact may form an infrared reflecting layer with an underlying dielectric layer for increased solar radiation collection.

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Research Organization:: SunPower Corporation, San Jose, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC36-076017043

Assignee:: SunPower Corporation (San Jose, CA)

Patent Number(s):: 8,878,053

Application Number:: 13/495,577

OSTI ID:: 1163238

Resource Relation:: Patent File Date: 2012 Jun 13

Country of Publication:: United States

Language:: English

References (49)

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