Calif. prof turns to III-V semis for more efficient solar cells

06/9/2014 | MIT Technology Review online

Ali Javey, a professor at the University of California, Berkeley, is working on solar cells with greater energy-conversion efficiency by employing III-V semiconductors, such as gallium arsenide and indium phosphide, instead of silicon. Such cells are capable of a 25% efficiency rate, compared with a rate below 18% for silicon-based solar cells. Javey's proposed process could have a cost similar to that for conventional solar cells, according to the National Renewable Energy Laboratory.

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