New radiation therapy promises relief for overheating laptops. In IBM's TJ Watson research center and at the Ioffe Institution in St petersburg Russia,Roktin and his collegues have developed a heat dissipation method that cools Carbon nano tube electronics by utilizing nonconventional radiation in a "near field zone" just above the surface on which the nano tube rest.
Roktin says,the new cooling method requires that the nanotube substrate be composed of a polar material such as Silicondioxide(Si02).The method channels excess heat from the nanotubes into the substrate which being much larger ,can be more effective cooled by the vents that push cool air through laptops.
Roktin and his collegues have been studying the heat dissipation problems associated with carbon nanotube electronics for three years .
"Other methods of heat dissipation do not succeed at discharging heat from within the channel of the nanotube or nanowire," says Rotkin. "Our method enables the heat to leave the channel and move to the substrate, while also scattering the hot electrons. This constitutes a novel cooling mechanism without any moving parts or cooling agents."
The article, titled "An Essential Mechanism of Heat Dissipation in Carbon Nanotube Electronics," was coauthored by Rotkin, who is a primary faculty member with Lehigh's Center for Advanced Materials and Nanotechnology; Vasilii Perebeinos and Phaedon Avouris of IBM's T.J. Watson Research Center; and Alexey G. Petrov of the Ioffe Institute.