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DESIGN OF HIGHER EFFICIENCY SILICON SOLAR CELLS

United States Patent Application

20110168263
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
Higher efficiency, lower cost silicon based solar cells are provided by modifying the absorption coefficient of Silicon so that it strongly overlaps with the solar spectrum. In one embodiment this is achieved by co doping of the silicon with appropriate impurities. In another embodiment it is achieved by modifying the structure of silicon whereby a portion is converted into Silicon XII having the R8 structure.
Louie, Steven G. (Berkeley, CA), Cohen, Marvin L. (Piedmont, CA)
The Regents of the University of California (Oakland CA)
13/ 119,114
September 17, 2009
STATEMENT OF GOVERNMENTAL SUPPORT [0002] The invention described and claimed herein was made in part utilizing funds supplied by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231, and the National Science Foundation under grant number DMR07-05941. The government has certain rights in this invention.