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GaAs

German-French scientists develop ultra-thin GaAs solar cell with 19.9% efficiency

The researchers have developed a new manufacturing process by using an ultra-thin absorbing layer made of 205-nanometer-thick gallium arsenide (GaAs) and a nanostructured back mirror.

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Another step toward affordable III-V solar cells

The U.S. National Renewable Energy Laboratory reports further progress in bringing down the cost of III-V solar cells. Scientists have refined their ‘brand new, 50-year-old’ D-HVPE technology to speed up the production rate for gallium arsenide solar cells by a factor of more than 20. The development is a potential step toward making incredibly efficient solar cells cost effective for everyday purposes.

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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.

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Efficiency record isn’t the biggest change for Alta Devices’ GaAS solar technology

Alta Devices’ gallium arsenide solar research cells have been certified with a 29.1% efficiency, setting a new single junction solar cell efficiency record. The most significant change, however, isn’t actually the efficiency; it is that the weight fell 30%, and from the words of Alta Devices, its process has lowered material costs to “essentially nothing”.

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Microlink Devices signs deal with NREL to produce lightweight HJT cells

U.S. based semiconductor manufacturer Microlink Devices has signed an exclusive deal with the U.S. National Renewable Energy Laboratory (NREL) to commercialize a type of lightweight heterojunction solar cell architecture, which could be utilized in powering satellites and aircraft.

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Swiss researchers team with NREL to break 35% cell efficiency

A collaborative project between the U.S. National Renewable Energy Laboratory, the Swiss Center for Electronics and Microtechnology (CSEM) and the École Polytechnique Fédérale de Lausanne (EPFL) has tested a range of multi junction cells in tandem configuration, and achieved efficiencies of up to 35.9%.

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Audi, Hanergy unit to jointly develop PV for vehicles

German automaker Audi and California-based Alta Devices — a wholly owned subsidiary of troubled Chinese PV group Hanergy Thin Film Power (HTF) — have agreed to collaborate on thin-film solar research, with plans to exhibit a PV-integrated Audi prototype vehicle by the end of this year.

Sol Voltaics moves toward commercialization for GaAs film solution

Swedish materials company Sol Voltaics announced that it has successfully produced gallium arsenide (GaAs) nanowires, bringing its efficiency boosting film a step closer to commercialization.

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