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GaAs solar cells

Single‐walled carbon nanotubes for more efficient III‐V solar cells

Russian researchers have improved the efficiency of a thin-fim GaAs‐based solar cell by 0.9% by applying single‐walled carbon nanotubes as the topmost layer. The cell also showed a slight increase in the short circuit current density, from 16.9 to 17.9 mA/cm2.

Russian scientists unveil new manufacturing process for III-V solar cells

Researchers have integrated A3B5 semiconductors on a silicon substrate in a prototype solar cell and claim the technique could enable the production of III-V solar cells with conversion efficiencies of around 40%.

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The year in solar, part II: A lively show season, more legal shenanigans and rising panel efficiencies abound

Intersolar Europe is always a key date in the solar calendar but this year’s show had it all, including three panel-smuggling arrests. Elsewhere, wafers were getting bigger, efficiency records were tumbling and new technologies were emerging. There was also more news on the solar car ports fad and Hanwha’s ongoing legal tussle.

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Hanergy: From thin-film solar savior to mass lay-offs at MiaSolé, Alta, Solibro and Global Solar

Unannounced lay-offs with no pay or benefits have left more than 600 American workers, 180 employees in Germany and thousands in China unemployed and in the dark. Some of those affected have told pv magazine their story.

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New metallization tech to reduce microcracks in solar cells

A U.S. research group has developed a metal-carbon-nanotube composite – MetZilla – which can be embedded in commercial, screen-printable silver pastes and is said to reduce the formation of hotspots in solar modules and to prolong panel lifespan. The composite metal contacts are also ‘self-healing’ as they are able to regain electrical continuity after cycles of complete electrical failure caused by extreme strain.

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