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Article
Thermal Conductivity of Chirality-Sorted Carbon Nanotube Networks
Applied Physics Letters
  • Feifei Lian, Stanford University
  • Juan P. Llinas, University of Illinois Urbana-Champaign
  • Zuanyi Li, Stanford University
  • David Estrada, Boise State University
  • Eric Pop, Stanford University
Document Type
Article
Publication Date
3-7-2016
Abstract

The thermal properties of single-walled carbon nanotubes (SWNTs) are of significant interest, yet their dependence on SWNT chirality has been, until now, not explored experimentally. Here, we used electrical heating and infrared thermal imaging to simultaneously study thermal and electrical transport in chirality-sorted SWNT networks. We examined solution processed 90% semiconducting, 90% metallic, purified unsorted (66% semiconducting), and as-grown HiPco SWNT films. The thermal conductivities of these films range from 80 to 370 W m-1 K-1 but are not controlled by chirality, instead being dependent on the morphology (i.e., mass and junction density, quasi-alignment) of the networks. The upper range of the thermal conductivities measured is comparable to that of the best metals (Cu and Ag), but with over an order of magnitude lower mass density. This study reveals important factors controlling the thermal properties of light-weight chirality-sorted SWNT films, for potential thermal and thermoelectric applications.

Copyright Statement

Copyright (2016) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics, 108(10), 103101 and may be found at doi: 10.1063/1.4942968.

Citation Information
Feifei Lian, Juan P. Llinas, Zuanyi Li, David Estrada, et al.. "Thermal Conductivity of Chirality-Sorted Carbon Nanotube Networks" Applied Physics Letters (2016)
Available at: http://works.bepress.com/david_estrada/25/