Vertical single-wall carbon nanotube forests as plasmonic heat pipes

Andrei M. Nemilentsau, Slava V. Rotkin

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

High thermal conductivity of carbon nanotubes (NTs) is attractive for the heat removal applications. However, the problem of efficient thermal coupling to the heater/cooler still needs to be resolved. We study near-field electromagnetic tunneling as a mechanism of heat transfer across the interface. We report interface thermal (Kapitza) conductance between a low-density vertical metallic single-wall NT forest and a quartz substrate on the order of 50 MW/Km 2 and explain it by strong electromagnetic interaction and near-field entanglement between the surface phonon-polaritons in the polar dielectric and the NT plasmons. We predict that the thickness of the NT film can be tweaked to the resonance wavelength of these entangled modes for performance optimization of nanocarbon thermal interconnects.

Original languageEnglish (US)
Pages (from-to)4298-4304
Number of pages7
JournalACS nano
Volume6
Issue number5
DOIs
StatePublished - May 22 2012

Keywords

  • Interface thermal conductance
  • Kapitza conductance
  • Near-field heat
  • Single-wall nanotubes
  • Surface polariton

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