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from the does-it-also-make-the-room-darker? dept.
Researchers at the University of Michigan ran a light emitting diode (LED) with electrodes reversed in order to cool another device mere nanometers away. The approach could lead to new solid-state cooling technology for future microprocessors, which will have so many transistors packed into a small space that current methods can’t remove heat quickly enough.
This could turn out to be important for future smartphones and other computers. With more computing power in smaller and smaller devices, removing the heat from the microprocessor is beginning to limit how much power can be squeezed into a given space.
https://www.rtoz.org/2019/02/18/running-an-led-in-reverse-could-cool-future-computers/
[How does this compare to a Peltier device?
--Ed.]
(Score: 2) by JoeMerchant on Tuesday February 19 2019, @11:03PM
Last time I looked into it, everything is bound by the usual thermodynamic limitations. You can shuffle things around, but once entropy has increased there's no decreasing it in the big picture. Entropy can be decreased in a localized part of a system, but only by increasing entropy (usually including some bonus entropy, but at least as much as was decreased) somewhere else in the system.
Unless Maxwell's Demon is real...
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