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Pink solar cells provide green power on the cheap

Nilay Patel
07.30.07
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The race to build a cheaper solar cell continues to produce results, as researchers at Ohio State have developed a nanotech solar cell with a unique pink color that they say will one day be able to produce as much power as traditional silicon cells for a quarter of the cost. The dye-sensitive solar cells, or DSSCs, get their pink color from a mixture of ruthenium and either titanium or zinc oxide particles that absorb sunlight, while nanowires link the particles to provide power transfer. So far the team have gotten the cells to produce half as much power as traditional cells, but the next step is to start using nanowire "trees" to improve efficiency to equal or surpass those levels. No word on when we'll see this tech hit the market, but surely the prospect of a hot pink solar Cadillac isn't too far off.

[Photo is of an unrelated DSSC concept from New Zealand]

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