Journal
APPLIED SURFACE SCIENCE
Volume 254, Issue 23, Pages 7600-7603Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2008.01.116
Keywords
quantum transport; carbon nanotubes; time-dependent approach
Categories
Funding
- CREST
- Next Generation Super Computing Project
- Nanoscience Program, MEXT, Japan
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We investigated the phonon scattering effects on the transport properties of carbon nanotube devices with micron-order lengths at room temperature, using the time-dependent wave-packet approach based on the Kubo formula within a tight-binding approximation. We studied the scattering effects of both the longitudinal acoustic and the optical phonons on the transport properties. The conductance of semiconducting nanotubes is decreased by the acoustic phonon, instead of the optical phonon. Furthermore, we clarified how the electron mobilities of the devices are affected by the acoustic phonon. (c) 2007 Elsevier B.V. All rights reserved.
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