Characterization of thermal transport in multiwalled carbon nanotube using FIB irradiation

Koji Takahashi, Hiroyuki Hayashi

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

Abstract

Thermal conductance of an individual multiwalled carbon nanotube was measured as a function of its length. Focused ion beam was used to shorten a 4.8 micrometer-long nanotube to 2.4, 1.2, 0.6, and 0.3-micrometer-long specimens on a hot-film sensor. As the nanotube is shorten, the conductance decreases more than expected by the diffusive thermal conduction theory. We treated two nanotubes of 64nm and 85nm diameters, both of which showed quasi-ballistic phonon transport. This is the first experiment to quantitatively investigate the contribution of phonons with long free paths in multiwalled carbon nanotube. The principle of thermal measurement, amorphous carbon induced by the ion beam, and considerable errors are also explained.

Original languageEnglish
Title of host publicationThermomechanical Phenomena in Electronic Systems -Proceedings of the Intersociety Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1375-1378
Number of pages4
ISBN (Electronic)9781479952670
DOIs
Publication statusPublished - Sep 4 2014
Event14th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2014 - Orlando, United States
Duration: May 27 2014May 30 2014

Publication series

NameThermomechanical Phenomena in Electronic Systems -Proceedings of the Intersociety Conference

Other

Other14th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2014
CountryUnited States
CityOrlando
Period5/27/145/30/14

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

Takahashi, K., & Hayashi, H. (2014). Characterization of thermal transport in multiwalled carbon nanotube using FIB irradiation. In Thermomechanical Phenomena in Electronic Systems -Proceedings of the Intersociety Conference (pp. 1375-1378). [6892439] (Thermomechanical Phenomena in Electronic Systems -Proceedings of the Intersociety Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ITHERM.2014.6892439