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Encapsulated nanowires : boosting electronic transport in carbon nanotubes
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Vasylenko, Andrij, Wynn, Jamie, Medeiros, Paulo V. C., Morris, Andrew J., Sloan, Jeremy and Quigley, David (2017) Encapsulated nanowires : boosting electronic transport in carbon nanotubes. Physical Review B (Condensed Matter and Materials Physics), 95 (12). 121408(R). doi:10.1103/PhysRevB.95.121408 ISSN 1098-0121.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.95.121408
Abstract
The electrical conductivity of metallic carbon nanotubes (CNTs) quickly saturates with respect to bias voltage due to scattering from a large population of optical phonons. The decay of these dominant scatterers in pristine CNTs is too slow to offset an increased generation rate at high voltage bias. We demonstrate from first principles that encapsulation of one-dimensional atomic chains within a single-walled CNT can enhance the decay of “hot” phonons by providing additional channels for thermalization. Pacification of the phonon population growth reduces the electrical resistivity of metallic CNTs by 51% for an example system with encapsulated beryllium.
Item Type: | Journal Article | |||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||
Library of Congress Subject Headings (LCSH): | Nanowires, Carbon nanotubes | |||||||||
Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | |||||||||
Publisher: | American Physical Society | |||||||||
ISSN: | 1098-0121 | |||||||||
Official Date: | 27 March 2017 | |||||||||
Dates: |
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Volume: | 95 | |||||||||
Number: | 12 | |||||||||
Article Number: | 121408(R) | |||||||||
DOI: | 10.1103/PhysRevB.95.121408 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||
Date of first compliant deposit: | 31 March 2017 | |||||||||
Date of first compliant Open Access: | 4 April 2017 | |||||||||
RIOXX Funder/Project Grant: |
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