skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Trench process and structure for backside contact solar cells with polysilicon doped regions

Patent ·
OSTI ID:1009830
 [1];  [2];  [3]
  1. Woodside, CA
  2. Menlo Park, CA
  3. Campbell, CA
+ Show Author Affiliations

A solar cell includes polysilicon P-type and N-type doped regions on a backside of a substrate, such as a silicon wafer. An interrupted trench structure separates the P-type doped region from the N-type doped region in some locations but allows the P-type doped region and the N-type doped region to touch in other locations. Each of the P-type and N-type doped regions may be formed over a thin dielectric layer. Among other advantages, the resulting solar cell structure allows for increased efficiency while having a relatively low reverse breakdown voltage.

Research Organization:
SunPower Corporation (San Jose, CA)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC36-07GO17043
Assignee:
SunPower Corporation (San Jose, CA)
Patent Number(s):
7,851,698
Application Number:
12/392,923
OSTI ID:
1009830
Country of Publication:
United States
Language:
English

References (4)

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
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
A flat-plate concentrator: micro-concentrator design overview
  • 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) https://doi.org/10.1109/PVSC.2000.916177
conference January 2000
Simplified backside-contact solar cells journal January 1990

Similar Records

Related Subjects