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Graphene transistors exhibit nanoscale cooling effect

Posted on Saturday, April 09 2011 @ 15:20:02 CEST by


PhysOrg reports researchers have found that graphene transistors have a nanoscale cooling effect that reduces their temperature:
Led by mechanical science and engineering professor William King and electrical and computer engineering professor Eric Pop, the team will publish its findings in the April 3 advance online edition of the journal Nature Nanotechnology.

The speed and size of computer chips are limited by how much heat they dissipate. All electronics dissipate heat as a result of the electrons in the current colliding with the device material, a phenomenon called resistive heating. This heating outweighs other smaller thermoelectric effects that can locally cool a device. Computers with silicon chips use fans or flowing water to cool the transistors, a process that consumes much of the energy required to power a device.




 



 

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