Posted Dec. 20, 2011 at 8:35 a.m.

Premium Lock Semprius solar cells score in U.S. lab test

Published: 2011-12-20 08:35:17
Updated: 2011-12-20 08:35:17

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The National Renewable Energy Laboratory said the company's 600-micron, gallium arsenide cells had 41 percent efficiency at a 100-suns concentration....

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