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Nanowires have the power to revolutionize solar energy
Date:4/8/2013

anowire, improving the quality of the gallium arsenide and using better electrical contacts to extract the current could increase the prototype's efficiency.

Arrays of nanowire solar cells offer new prospects for energy production. This study suggests that an array of nanowires may attain 33% efficiency, in practice, whereas commercial (flat) solar panels are now only up to 20% efficient. Also, arrays of nanowires would use at least 10 000 times less gallium arsenide, allowing for industrial use of this costly material. Translating this into dollars for gallium arsenide, the cost would only be $10 per square meter instead of $100 000.

Free to the engineer's imagination to mount these nanowires onto a variety of substrate panels, be it lightweight, flexible or designed to withstand the harshest of conditions. In a world where energy consumption is on the rise, these nanowires may one day power everything from your favorite gadget to space missions to Mars.


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Contact: Hillary Sanctuary
hillary.sanctuary@epfl.ch
41-797-034-809
Ecole Polytechnique Fdrale de Lausanne
Source:Eurekalert

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