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Title: Method and tool to reverse the charges in anti-reflection films used for solar cell applications

A method is provided for making a solar cell. The method includes providing a stack including a substrate, a barrier layer disposed on the substrate, and an anti-reflective layer disposed on the barrier layer, where the anti-reflective layer has charge centers. The method also includes generating a corona with a charging tool and contacting the anti-reflective layer with the corona thereby injecting charge into at least some of the charge centers in the anti-reflective layer. Ultra-violet illumination and temperature-based annealing may be used to modify the charge of the anti-reflective layer.
Inventors:
;
Issue Date:
OSTI Identifier:
1341853
Assignee:
Arizona Board of Regents on Behalf of Arizona State University (Scottsdale, AZ) CHO
Patent Number(s):
9,559,222
Application Number:
14/456,477
Resource Relation:
Patent File Date: 2014 Aug 11
Research Org:
Arizona Board of Regents on Behalf of Arizona State University, Scottsdale, AZ (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE

Other works cited in this record:

Silicon nitride passivation for a solar cell
patent, August 2011

Experimental evidence of parasitic shunting in silicon nitride rear surface passivated solar cells
journal, January 2002
  • Dauwe, Stefan; Mittelst├Ądt, Lutz; Metz, Axel
  • Progress in Photovoltaics: Research and Applications, Vol. 10, Issue 4, p. 271-278
  • DOI: 10.1002/pip.420

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