Very-low-bandgap thermophotovoltaics for operation at higher temperatures

Researchers in France have developed very-low-bandgap thermophotovoltaic (TPV) cells featuring a barrier layer designed to suppress dark current. TPV, not to be confused with photovoltaic-thermal (PVT) technology, converts infrared (IR) radiation from heat sources directly into electricity using PV cells. Potential applications include thermal energy storage and the conversion of industrial process heat into electricity. The technology has attracted scientific interest for decades because it can potentially capture a broader portion of the solar spectrum and has the technical potential to exceed ...

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