Solar firm claims efficiency record
4/14/2011 2:20 PM EDT
SAN JOSE, Calif. - Solar Junction, a developer of multi-junction cells for the concentrated photovoltaic (CPV) market, claims to have set a world-record for 43.5 percent efficiency on a commercial-ready production cell.
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 5.5 mm x 5.5 mm 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 the company’s 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 multi-junction 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.