Journal article 682 views 97 downloads
Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions
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Alvin Orbaek White ,
Andrew Barron
Nanoscale Advances, Volume: 3, Issue: 3, Pages: 643 - 646
Swansea University Authors:
Christopher Barnett, Cathren Gowenlock , Alvin Orbaek White , Andrew Barron
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DOI (Published version): 10.1039/d0na01021a
Abstract
Multi-walled carbon nanotubes (MWCNTs) show an oscillation in electrical resistance (from I–V measurements) during mechanical distortion in which peak separation is inversely correlated with the diameter of the MWCNTs. These results provide the first experimental support of the theoretical predictio...
| Published in: | Nanoscale Advances |
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| ISSN: | 2516-0230 |
| Published: |
Royal Society of Chemistry (RSC)
2021
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa56318 |
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| Abstract: |
Multi-walled carbon nanotubes (MWCNTs) show an oscillation in electrical resistance (from I–V measurements) during mechanical distortion in which peak separation is inversely correlated with the diameter of the MWCNTs. These results provide the first experimental support of the theoretical prediction that distortion causes Van Hove singularities and Dirac cones in MWCNTs to misalign and cause the opening of the band gap, and suggest that when fabricating contacts for CNTs for device applications, the pressure caused by the contact deposition method must be taken into account for manufacturing devices with consistent properties. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
3 |
| Start Page: |
643 |
| End Page: |
646 |