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Quantum Dots covering one square inch could produce a watt of power for every one degree temperature difference
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“The system is really a simple one, which exploits certain properties of quantum dots to harvest heat,” Professor Andrew Jordan of the University of Rochester said. “Despite this simplicity, the power it could generate is still larger than any other nanoengine that has been considered until now.”
The engines would be microscopic in size, and have no moving parts. Each would only produce a tiny amount of power – a millionth or less of what a light bulb uses. But by combining millions of the engines in a layered structure, Jordan says a device that was a square inch in area could produce about a watt of power for every one degree difference in temperature. Enough of them could make a notable difference in the energy consumption of a computer.
Quantum Dot Heat Energy Harvester Simple Diagram. An array on nano energy harvesters in what the researchers call a “swiss cheese sandwich” arrangement.
Physical Review B – Powerful and efficient energy harvester with resonant-tunneling quantum dots
See more and subscribe to NextBigFuture at 2013-02-21 01:30:50 Source: http://nextbigfuture.com/2013/02/quantum-dots-covering-one-square-inch.html
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