GREEN
08/04/2010 04:15 pm ET | Updated May 25, 2011

Solar Power Gets Cheaper, Scientists Switch Out Gold For Nickel

In the world of solar there have recently been some major breakthroughs in cost advantages and efficiency increases. Scientists at the University of Toronto in Canada have come up with a way to reduce colloidal quantum dot solar cell prices by up to 80%, by swapping out costly conductive gold for cheap nickel.

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