Spire Develops 41% Efficient Concentrator Solar Cell

Corp. says its wholly owned subsidiary, Spire Semiconductor LLC, has matched the current efficiency record for a concentrator solar cell. The record efficiency is available on a production-ready cell with a photo area of 1 square cm. The U.S. Department of Energy's National Renewable Energy Laboratory (NREL) measured the efficiency of 41.0% at 500x suns concentrated sunlight. Spire Semiconductor began working with NREL under an 18-month, $3.7 million cost share subcontract in early 2009. The goal of the research is to develop a triple-junction gallium arsenide 42.5% efficient Triathlon concentrator cell for concentrator photovoltaic systems. SOURCE: [link=http://www.spirecorp.com/spire-solar/index.php]Spire

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