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INTERMEDIATE BAND SOLAR CELLS WITH DILUTE GROUP III-V NITRIDES

United States Patent Application

20140261690
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
A single junction solar cell may be manufactured with a material having multiple bands. That is, a single semiconductor with several absorption edges that absorb photons from different parts of the solar spectrum may be constructed. The different absorption edges may be created by splitting a conduction band of the solar cell material into multiple intermediate sub-bands. The solar cell may include a photovoltaic material deposited on a substrate, in which the photovoltaic material is a III-V semiconductor alloy, such as AlGaNAs, AlGaAsNSb, or AlInGaNAsBi.
Walukiewicz, Wladyslaw (Kensington, CA), Yu, Kin Man (Lafayette, CA)
Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley CA)
13/ 844,442
March 15, 2013
GOVERNMENT SUPPORT STATEMENT [0001] This invention was made with government support under Contract No. DE-AC02-05CH11231 awarded by the U.S. Department of Energy. The government has certain rights in the invention.