2005/12/22 by Eric Pop, David Mann, David J. Mann +4 · 5 citations
Engineering · Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Thermal Radiation and Cooling Technologies #Thermal properties of materials #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1021/nl052145f
Nano Letters, vol. 6, no. 1, 2006
openalex publication_date 2005/12/22 · arxiv created 2005/12/23 · arxiv updated 2015/06/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
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 W/m/K at room temperature for a SWNT of length 2.6 um 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.