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Optoelectronic semiconductor device and method of fabrication

United States Patent

November 25, 2014
View the Complete Patent at the US Patent & Trademark Office
An optoelectronic device comprising an optically active layer that includes a plurality of domes is presented. The plurality of domes is arrayed in two dimensions having a periodicity in each dimension that is less than or comparable with the shortest wavelength in a spectral range of interest. By virtue of the plurality of domes, the optoelectronic device achieves high performance. A solar cell having high energy-conversion efficiency, improved absorption over the spectral range of interest, and an improved acceptance angle is presented as an exemplary device.
Cui; Yi (Sunnyvale, CA), Zhu; Jia (Stanford, CA), Hsu; Ching-Mei (Stanford, CA), Fan; Shanhui (Stanford, CA), Yu; Zongfu (Stanford, CA)
The Board of Trustees of the Leland Stanford Junior University (Palo Alto, CA)
12/ 909,064
October 21, 2010
STATEMENT REGARDING FEDERALLY-SPONSORED RESEARCH This invention was made with Government support under contracts DE-FG02-07ER46426 and DE-FG36-08GO18004 awarded by the Department of Energy. The Government has certain rights in this invention.