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Nano Lett. 2008 Mar;8(3):902-7. doi: 10.1021/nl0731872. Epub 2008 Feb 20.

Superior thermal conductivity of single-layer graphene.

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Nano-Device Laboratory, Department of Electrical Engineering, Bourns College of Engineering, University of California-Riverside, Riverside, California 92521, USA.


We report the measurement of the thermal conductivity of a suspended single-layer graphene. The room temperature values of the thermal conductivity in the range approximately (4.84+/-0.44)x10(3) to (5.30+/-0.48)x10(3) W/mK were extracted for a single-layer graphene from the dependence of the Raman G peak frequency on the excitation laser power and independently measured G peak temperature coefficient. The extremely high value of the thermal conductivity suggests that graphene can outperform carbon nanotubes in heat conduction. The superb thermal conduction property of graphene is beneficial for the proposed electronic applications and establishes graphene as an excellent material for thermal management.


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