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Quantum Dots Lead to Better Solar Cells

Filed in archive Energy by Michael Anissimov on August 22, 2007

QD_cell.jpg
The addition to quantum dots to solar cells could lead to a tripling in efficiency, boosting from the usual 10% up to 40% or 60% (with concentrators). Silicon nanocrystals (quantum dots) are able to extract two or three electrons for each incoming photon, an unprecedented feat. Although solar is often hailed as a great, environmentally friendly energy source, it has a ways to go before being able to compete with fossil fuels - but efforts like this could make the difference.


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Tags: quantum  dot  2007  solar  cells  quantum+dots  solar+cells  better+solar 

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