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How can a split band gap convert a wide swath of the solar spectrum to electricity?

April 26, 2017band convert electricity gap solar spectrum Split swath wide

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How can a split band gap convert a wide swath of the solar spectrum to electricity?

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In a multilayer solar cell (left), each layer is a different alloy with a different band gap, which responds to a different frequency of sunlight. A multigap solar cell has only a single layer of material, but multiple band gaps allow it to respond to a range of different frequencies.