A Solar Hybrid: Crystalline Silicon and Thin Film in One Cell

By Jennifer Kho on September 28, 2009

Who says a solar company has to choose between conventional silicon and thin-film solar cells? RoseStreet Labs Energy, a Phoenix-based private company, is combining the two in a double-layered cell that it claims can achieve “practical efficiencies” – meaning efficiencies of cells actually available on the market, not just in the lab – of 25 to 30 percent. On Monday, the company announced the world’s first nitride/silicon tandem solar cell, which it plans to produce in the fourth quarter of next year.

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