Nothing can bring down the price of III-V solar cells - just add germanium

A research paper from scientists at the U.S. National Renewable Energy Laboratory outlines a new approach to the production of gallium arsenide based cells. The approach, termed 'germanium on nothing', could enable the cost effective, high volume production of PV cells based on III-V materials such as gallium arsenide.Scientists at the United States National Renewable Energy Laboratory (NREL) and the Korea Advanced Institute of Science and Technology have demonstrated a method of producing gallium arsenide (GaAs) solar cells with a reusable germanium substrate. The researchers say the technique ...

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