Monday 20 July 2015

Gallium phosphide nanowires boost hydrogen yield in prototype solar fuel cell

A close-up look of gallium phosphide nanowires at the heart of the prototype solar fuel cell

One of the most promising forms of artificial photosynthesis involves using solar energy to split liquid water to produce oxygen and hydrogen gas, which can be stored and used as a clean fuel. And one of the most promising semiconductor materials for such a task is gallium phosphide (GaP), which can convert sunlight into an electrical charge and also split water. Unfortunately, the material is expensive, but researchers have now used a processed form of gallium phosphide to create a prototype solar fuel cell that not only requires 10,000 times less of the precious material, but also boosts the hydrogen yield by a factor of 10.

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from Gizmag Emerging Technology Magazine http://ift.tt/1SywKc1

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