68.9% Efficient GaAs‐Based Photonic Power Conversion Enabled by Photon Recycling and Optical Resonance
Source abstract
Abstract
A thin-film GaAs/AlGaAs rear-heterojunction photonic power converter with a back reflector is presented by Henning Helmers and co-workers in article number 2100113. Photon recycling is leveraged to increase the excess carrier density and consequently the output voltage. Optical resonance yields highest absorptance for near-bandgap photons. Thereby thermalization losses are minimized without compromising minimal transmission. A photovoltaic conversion efficiency of 68.9% for 858 nm monochromatic light is demonstrated.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: solar cell performance optimization · Chalcogenide Semiconductor Thin Films · Photonic and Optical Devices
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Affiliations
Fraunhofer ISE Fraunhofer Institute for Solar Energy Systems Heidenhofstr. 2 79110 Freiburg Germany
References
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