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Photodetector Uses Ultrathin Materials to Increase Efficiency

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RIVERSIDE, Calif., Oct. 17, 2017 — A prototype developed using quantum mechanical processes could usher in a novel class of ultra-efficient photodetectors that would enable solar cells to turn the light they receive into multiple electrons. The prototype is based on the efficient multiplication of interlayer electron-hole (e-h) pairs in 2D semiconductor heterostructure photocells. To build the prototype, researchers at University of California, Riverside, stacked two atomic layers of tungsten diselenide (WSe2) on a single atomic layer of molybdenum diselenide (MoSe2). Such stacking resulted in properties that were vastly...Read full article

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