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Solar cell maker claims new efficiency record

Posted: 19 Apr 2011 ?? ?Print Version ?Bookmark and Share

Keywords:multijunction cells? solar cells? concentrated photovoltaic market? solar cell efficiency?

Solar Junction recently declared that it has set a new world record by achieving 43.5 percent efficiency on a commercial-ready production cell. The company develops multijunction cells for the concentrated photovoltaic (CPV) market.

This achievement was supported under the U.S. Department of Energy (DOE) PV Incubator Program, managed through DOE's National Renewable Energy Laboratory (NREL). The cell's efficiency was confirmed by NREL's Measurement and Characterization Laboratory.

The 5.5mm x 5.5mm production cell tops the current record by 1.2 percent and is higher than the average efficiency gain achieved by previous record holders. The Solar Junction cell measured a peak efficiency of 43.5 percent at greater than 400 suns and still maintained an efficiency as high as 43 percent out to 1,000 suns.

Solar Junction's cells incorporate its proprietary adjustable spectrum lattice-matched (A-SLAM) technology, which enables the company to more optimally partition the solar spectrum for maximum efficiency and greater reliability.

Solar Junction is a manufacturer of high-efficiency III-V multijunction solar cells based on lattice-matched 1eV materials. Founded in 2007, Solar Junction is headquartered in San Jose. Investors include New Enterprise Associates, Draper Fisher Jurvetson and Advanced Technology Ventures.

- Mark LaPedus
??EE Times

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