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Fraunhofer ISE Achieves 34.2% Efficiency with III-V Germanium PV Module

Fraunhofer scientists have announced two efficiency records for III-V tandem modules. The team says its 34.2% efficiency III-V germanium PV module is the most efficient solar module in the world, while its 31.3% efficiency III-V silicon PV module is a record in its class.Germany’s Fraunhofer Institute for Solar Energy Systems ISE has developed two III-V tandem PV modules with world record power conversion efficiencies. The team’s modules each fe…
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34.2% efficiency: According to Fraunhofer ISE researchers, they built the most efficient solar module in the world – and by the way broke another record.How was that possible? The article The most efficient solar modules in the world come from Freiburg – this is how they work first on ingenieur.de - job portal and news portal for engineers.

·Düsseldorf, Germany
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Scientists at the Fraunhofer Institute for Solar Energy Systems ISE succeeded in building two tandem photovoltaic modules [...]

In addition to the record module, the Freiburg researchers achieved an efficiency of 31.3 percent for another tandem module with another combination. This is also a record, using the more cost-effective silicon technology.The Fraunhofer Institute for Solar Energy Systems ISE has produced two tandem modules with efficiency records.The first is a III-V Germanium photovoltaic module with 34.2 percent efficiency.It includes solar cells from Azur Spa…

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pv magazine Deutschland broke the news in on Tuesday, February 17, 2026.
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