Front contact solar cell with formed emitter
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- SunPower Corporation, San Jose, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1163238
- Patent Number(s):
- 8,878,053
- Application Number:
- 13/495,577
- Assignee:
- SunPower Corporation (San Jose, CA)
- DOE Contract Number:
- FC36-076017043
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2012 Jun 13
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY
Citation Formats
Cousins, Peter John. Front contact solar cell with formed emitter. United States: N. p., 2014.
Web.
Cousins, Peter John. Front contact solar cell with formed emitter. United States.
Cousins, Peter John. Tue .
"Front contact solar cell with formed emitter". United States. https://www.osti.gov/servlets/purl/1163238.
@article{osti_1163238,
title = {Front contact solar cell with formed emitter},
author = {Cousins, Peter John},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {11}
}
Works referenced in this record:
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patent, May 1990
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- US Patent Document 4,927,770
Radiation resistant passivation of silicon solar cells
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Method of fabricating polysilicon emitters for solar cells
patent, October 1991
- Swanson, Richard; Gan, Jon-Yiew
- US Patent Document 5,057,439
Interconnect structure for solar cells and method of making same
patent, November 2001
- Crane, Richard; Piper, Matthew; Daroczi, Shandor
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Heavily doped polysilicon-contact solar cells
journal, July 1985
- Lindholm, F. A.; Neugroschel, A.; Arienzo, M.
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