Thermal conductance of an individual single-wall carbon nanotube above room temperature.

By Eric Pop, D. Mann, Qian Wang, Kenneth E. Goodson, Hongjie Dai. Nano letters (Print), 2005

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The thermal properties of a suspended metallic single-wall carbon nanotube (SWNT) are extracted from its high-bias (I-V) electrical characteristics over the 300-800 K temperature range, achieved by Joule self-heating. The thermal conductance is approximately 2.4 nW/K, and the thermal conductivity is nearly 3500 Wm(-1)K(-1) at room temperature for a SWNT of length 2.6 mum and diameter 1.7 nm. A subtle decrease in thermal conductivity steeper than 1/T is observed at the upper end of the temperature range, which is attributed to second-order three-phonon scattering between two acoustic modes and one optical mode. We discuss sources of uncertainty and propose a simple analytical model for the SWNT thermal conductivity including length and temperature dependence.

Subfields: Civil and Structural Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/d5df206e47285a5baf316946b88191918994eb9c

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Citations in the corpus

Thermal conductivity of carbon nanotube networks: a review (2019, background): “Transport of thermal energy through a CNT is often considered to be dominated by the phonon conduction mechanism [13, 14].”
Thermal properties of graphene and nanostructured carbon materials. (2011, background): “values obtained in the experiments were attributed to the ballistic transport regime achieved in some CNTs. Commonly quoted values for individual MWCNTs are ~3000 W/mK [10] and ~3500 W/mK for SW-CNTs [11] at RT. These values are above the bulk graphite limit of ~2000 W/mK. Thus, CNTs are nanostructu”
Thermal conduction phenomena in carbon nanotubes and related nanostructured materials (2013, methodology): “An empirical model (Pop et al., 2006), developed from an analytical fit to the temperature dependency of the measured thermal conductivity for a 1.7 nm SWCNT in conjunction with additional data from (Yu et al., 2005), predicts a thermal conductivity given by k0 ¼ 3:7 10 7 T þ 9:7 10 10 T2 þ 9:3 1þ…”