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Thermal resistance of the nanoscale constrictions between carbon nanotubes and solid substrates

Maune, Hareem and Chiu, Hsin-Ying and Bockrath, Marc (2006) Thermal resistance of the nanoscale constrictions between carbon nanotubes and solid substrates. Applied Physics Letters, 89 (1). Art. No. 013109. ISSN 0003-6951.

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We have determined the thermal resistance for transferring heat between individual single-walled carbon nanotube devices and solid substrates. Using sapphire and comparing our results to previous results obtained from SiO2, we find that the resistance is dominated by interfacial resistance rather than the spreading resistance of heat for diffusing into the substrate. Our results are in agreement to a recent model for the thermal resistance of nanoscale constrictions. Our results suggest that relatively short contact lengths (~10–30 nm) to a typical solid should be sufficient to transfer heat efficiently into carbon nanotubes, underscoring the potential of carbon nanotubes for nanoscale thermal management.

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Additional Information:©2006 American Institute of Physics (Received 7 March 2006; accepted 17 May 2006; published online 6 July 2006) This work was supported by the ONR, the Powel Foundation, and the NSF. The authors thank Natalio Mingo for helpful discussions.
Subject Keywords:carbon nanotubes; sapphire; thermal resistance; diffusion; electric breakdown; thermal conductivity; interface phenomena
Issue or Number:1
Record Number:CaltechAUTHORS:MAUapl06
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3904
Deposited By: Archive Administrator
Deposited On:18 Jul 2006
Last Modified:02 Oct 2019 23:07

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