Abstract

The thermal properties of a suspended metallic single-wall carbon nanotube\n(SWNT) are extracted from its high-bias (I-V) electrical characteristics over\nthe 300-800 K temperature range, achieved by Joule self-heating. The thermal\nconductance is approximately 2.4 nW/K and the thermal conductivity is nearly\n3500 W/m/K at room temperature for a SWNT of length 2.6 um and diameter 1.7 nm.\nA subtle decrease in thermal conductivity steeper than 1/T is observed at the\nupper end of the temperature range, which is attributed to second order\nthree-phonon scattering between two acoustic modes and one optical mode. We\ndiscuss sources of uncertainty and propose a simple analytical model for the\nSWNT thermal conductivity including length and temperature dependence.\n

Keywords

Thermal conductivityCarbon nanotubeMaterials scienceAtmospheric temperature rangeJoule heatingPhononThermalConductanceScatteringThermal conductionPhonon scatteringJoule (programming language)Condensed matter physicsNanotubeNanotechnologyComposite materialThermodynamicsOpticsPhysics

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Publication Info

Year
2005
Type
article
Volume
6
Issue
1
Pages
96-100
Citations
1772
Access
Closed

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Eric Pop, David J. Mann, Qian Wang et al. (2005). Thermal Conductance of an Individual Single-Wall Carbon Nanotube above Room Temperature. Nano Letters , 6 (1) , 96-100. https://doi.org/10.1021/nl052145f

Identifiers

DOI
10.1021/nl052145f