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Photon and carrier management design for nonplanar thin-film copper indium gallium diselenide photovoltaics

United States Patent

9,825,193
November 21, 2017
View the Complete Patent at the US Patent & Trademark Office
Photovoltaic structures are disclosed. The structures can comprise randomly or periodically structured layers, a dielectric layer to reduce back diffusion of charge carriers, and a metallic layer to reflect photons back towards the absorbing semiconductor layers. This design can increase efficiency of photovoltaic structures. The structures can be fabricated by nanoimprint.
Atwater; Harry A. (South Pasadena, CA), Callahan; Dennis (Los Angeles, CA), Bukowsky; Colton (Pasadena, CA)
California Institute of Technology (Pasadena, CA)
14/ 875,605
20160111563
October 5, 2015
STATEMENT OF INTEREST This invention was made with government support under Grant No. DE-EE0004946/T-107934 awarded by the Department of Energy. The government has certain rights in the invention.