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Indoor solar panels developed with over 40% efficiency, based on III-V semiconductors

GaInP indoor solar cell

Under laser excitation, the GaInP indoor solar cell glows bright red, indicating the high material quality (Image: Fraunhofer ISE)

Fraunhofer ISE has boosted the efficiency of photovoltaics to over 40% under 100 lux, developing solar cells to power wireless indoor IoT applications

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