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Front contact solar cell with formed emitter

Patent ·
OSTI ID:1068556
 [1]
  1. Menlo Park, CA
+ Show Author Affiliations
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.
Research Organization:
SunPower Corporation (San Jose, CA)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC36-07GO17043
Assignee:
SunPower Corporation (San Jose, CA)
Patent Number(s):
8,222,516
Application Number:
12/070,742
OSTI ID:
1068556
Country of Publication:
United States
Language:
English

References (5)

A flat-plate concentrator: micro-concentrator design overview
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conference January 2000
Simplified backside-contact solar cells journal January 1990
A mirror-less design for micro-concentrator modules
  • Terao, A.; Mulligan, W. P.; Daroczi, S. G.
  • 28th IEEE Photovoltaic Specialists Conference, Conference Record of the Twenty-Eighth IEEE Photovoltaic Specialists Conference - 2000 (Cat. No.00CH37036) https://doi.org/10.1109/PVSC.2000.916158
conference January 2000
Development of chip-size silicon solar cells
  • 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) https://doi.org/10.1109/PVSC.2000.915778
conference January 2000
The promise of concentrators journal January 2000

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14 SOLAR ENERGY