Electrical and Thermal Transport in Metallic Single-Wall Carbon Nanotubes on Insulating Substrates

Abstract

We analyze transport in metallic single-wall carbon nanotubes (SWNTs) on insulating substrates over the bias range up to electrical breakdown in air. To account for Joule self-heating, a temperature-dependent Landauer model for electrical transport is coupled with the heat conduction equation along the nanotube. The electrical breakdown voltage of SWNTs in air is found to scale linearly with their length, approximately as 5 V/um; we use this to deduce a thermal conductance between SWNT and substrate g ~ 0.17 +/- 0.03 W/K/m per tube length, which appears limited by the SWNT-substrate interface rather than the thermal properties of the substrate itself. We examine the phonon scattering mechanisms limiting electron transport, and find the strong temperature dependence of the optical phonon absorption rate to have a remarkable influence on the electrical resistance of micron-length nanotubes. Further analysis reveals that unlike in typical metals, electrons are responsible for less than 15% of the total thermal conductivity of metallic nanotubes around room temperature, and this contribution decreases at high bias or higher temperatures. For interconnect applications of metallic SWNTs, significant self-heating may be avoided if power densities are limited below 5 uW/um, or if the SWNT-surrounding thermal interface is optimized.

arXiv commentaccepted for publication in J. Appl. Phys. (2007)

References in corpus (11)

• Thermal Conductance of an Individual Single-Wall Carbon Nanotube above Room Temperature
• High-Field Electrical Transport in Single-Wall Carbon Nanotubes
• Electron-Phonon Scattering in Metallic Single-Walled Carbon Nanotubes
• High-Field, Quasi-Ballistic Transport in Short Carbon Nanotubes
• Carbon Nanotube Field-Effect Transistors With Integrated Ohmic Contacts and High-k Gate Dielectrics
• Negative Differential Conductance and Hot Phonons in Suspended Nanotube Molecular Wires
• An RF Circuit Model for Carbon Nanotubes
• Electron-phonon effects and transport in carbon nanotubes
• Electron Transport and Hot Phonons in Carbon Nanotubes
• Universal Features of Quantized Thermal Conductance of Carbon Nanotubes
• Non-linear transport and heat dissipation in metallic carbon nanotubes

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