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Title: 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:
 [1]
  1. Menlo Park, CA
Publication Date:
Research Org.:
SunPower Corporation (San Jose, CA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1068556
Patent Number(s):
8,222,516
Application Number:
12/070,742
Assignee:
SunPower Corporation (San Jose, CA)
DOE Contract Number:  
FC36-07GO17043
Resource Type:
Patent
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., 2012. 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/1068556.
@article{osti_1068556,
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 = {2012},
month = {7}
}

Patent:

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Works referenced in this record:

Development of chip-size silicon solar cells
conference, January 2000

  • Mulligan, W. P.; Terao, A.; Smith, D. D.
  • 28th IEEE Photovoltaic Specialists Conference, Conference Record of the Twenty-Eighth IEEE Photovoltaic Specialists Conference - 2000 (Cat. No.00CH37036)
  • DOI: 10.1109/PVSC.2000.915778

A mirror-less design for micro-concentrator modules
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  • DOI: 10.1109/PVSC.2000.916158

A flat-plate concentrator: micro-concentrator design overview
conference, January 2000

  • Mulligan, W. P.; Terao, A.; Daroczi, S. G.
  • 28th IEEE Photovoltaic Specialists Conference, Conference Record of the Twenty-Eighth IEEE Photovoltaic Specialists Conference - 2000 (Cat. No.00CH37036)
  • DOI: 10.1109/PVSC.2000.916177

Simplified backside-contact solar cells
journal, January 1990

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