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thermovoltaic cells

Air-bridge thermophotovoltaic cell with 30% efficiency, 99% reflectance

U.S. scientists have developed a thermophovoltaic cell that could be paired with inexpensive thermal storage to provide power on demand. The indium gallium arsenide (InGaAs) TPV cell absorbs most of the in-band radiation to generate electricity, while serving as a nearly perfect mirror.

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