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How to Bring Solar Energy to 7 Billion People
79 min Aired April 16 2009
By exploiting the powers of nanotechnology and taking advantage of nontoxic, Earth-abundant materials, Berkeley Lab's Cyrus Wadia has fabricated new solar cell devices that have the potential to be several orders of magnitude less expensive than conventional solar cells. And, by mastering the chemistry of these materials-and the economics of solar energy-he envisions bringing electricity to the 1.2 billion people now living without it.