Fraunhofer ISE multi-junction solar cells – World Record 41.1% efficiency reached

fraunhoferlogo.jpg   Researchers at the Fraunhofer Institute for Solar Energy Systems ISE have achieved a record efficiency of 41.1% for the conversion of sunlight into electricity. Sunlight is concentrated by a factor of 454 and focused onto a small 5 mm² multi-junction solar cell made out of GaInP/GaInAs/ Ge (gallium indium phosphide, gallium indium arsenide on a germanium substrate


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