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Fraunhofer Develops Indoor Photovoltaics with Over 40% Efficiency

The optimized cells achieved high efficiencies even in low-light conditions of 100 lux

July 21, 2025

/ Staff
/ Solar, Technology
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Researchers at Germany’s Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) have developed solar cells based on III-V semiconductors that can achieve over 40% efficiency indoors.

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Staff

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Fraunhofer ISEGermanyIII-V SemiconductorsSolar
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