Nanoscale conformable coatings for enhanced thermal conduction of carbon nanotube films

Amy M. Marconnet, Munekazu Motoyama, Michael T. Barako, Yuan Gao, Scott Pozder, Burt Fowler, Koneru Ramakrishna, Glenn Mortland, Mehdi Asheghi, Kenneth E. Goodson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Vertically aligned carbon nanotube (CNT) arrays can provide the required combination of high thermal conductivity and mechanical compliance for thermal interface applications. Much work in the last 15 years has focused on improving the quality and intrinsic thermal conductivity of the nanotube arrays. Currently the thermal interface resistance between nanotube arrays and surrounding materials limits the overall thermal performance. To reduce this interface resistance, we propose coating the nanotube film with a continuous layer of metal. In this work, we electroplate 1 to 20 μm-thick continuous copper films directly on the carbon nanotube array. We measure the thermal conductivity of CNT arrays after electroplating using cross-sectional infrared microscopy. For low volume fraction, vertically-aligned carbon nanotubes arrays with copper electroplating (0.5 vol. %), the film thermal conductivity is nearly 3 W/m/K. These results demonstrate the feasibility of the electroplating method to coat CNT films.

Original languageEnglish
Title of host publicationProceedings of the 13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012
Pages15-19
Number of pages5
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012 - San Diego, CA, United States
Duration: May 30 2012Jun 1 2012

Publication series

NameInterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITHERM
ISSN (Print)1936-3958

Other

Other13th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2012
Country/TerritoryUnited States
CitySan Diego, CA
Period5/30/126/1/12

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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