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Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions

Christopher Barnett, Cathren Gowenlock Orcid Logo, Alvin Orbaek White Orcid Logo, Andrew Barron Orcid Logo

Nanoscale Advances, Volume: 3, Issue: 3, Pages: 643 - 646

Swansea University Authors: Christopher Barnett, Cathren Gowenlock Orcid Logo, Alvin Orbaek White Orcid Logo, Andrew Barron Orcid Logo

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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...

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Published in: Nanoscale Advances
ISSN: 2516-0230
Published: Royal Society of Chemistry (RSC) 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa56318
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first_indexed 2021-02-24T14:58:16Z
last_indexed 2022-04-28T03:25:48Z
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spelling 2022-04-27T12:28:49.8264113 v2 56318 2021-02-24 Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions 3cc4b7c0dcf59d3ff31f9f13b0e5a831 Christopher Barnett Christopher Barnett true false 3e999073c98799427c833bb5d331ef51 0000-0001-5774-5263 Cathren Gowenlock Cathren Gowenlock true false 8414a23650d4403fdfe1a735dbd2e24e 0000-0001-6338-5970 Alvin Orbaek White Alvin Orbaek White true false 92e452f20936d688d36f91c78574241d 0000-0002-2018-8288 Andrew Barron Andrew Barron true false 2021-02-24 FGSEN 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. Journal Article Nanoscale Advances 3 3 643 646 Royal Society of Chemistry (RSC) 2516-0230 2 1 2021 2021-01-02 10.1039/d0na01021a COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2022-04-27T12:28:49.8264113 2021-02-24T14:56:11.4527471 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Christopher Barnett 1 Cathren Gowenlock 0000-0001-5774-5263 2 Alvin Orbaek White 0000-0001-6338-5970 3 Andrew Barron 0000-0002-2018-8288 4 56318__19364__4d75607beb504b848fb0dd931f32262e.pdf 56318.pdf 2021-02-24T14:57:31.2749247 Output 396628 application/pdf Version of Record true © 2021 The Author(s). This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence true eng http://creativecommons.org/licenses/by-nc/3.0/
title Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions
spellingShingle Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions
Christopher Barnett
Cathren Gowenlock
Alvin Orbaek White
Andrew Barron
title_short Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions
title_full Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions
title_fullStr Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions
title_full_unstemmed Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions
title_sort Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions
author_id_str_mv 3cc4b7c0dcf59d3ff31f9f13b0e5a831
3e999073c98799427c833bb5d331ef51
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92e452f20936d688d36f91c78574241d
author_id_fullname_str_mv 3cc4b7c0dcf59d3ff31f9f13b0e5a831_***_Christopher Barnett
3e999073c98799427c833bb5d331ef51_***_Cathren Gowenlock
8414a23650d4403fdfe1a735dbd2e24e_***_Alvin Orbaek White
92e452f20936d688d36f91c78574241d_***_Andrew Barron
author Christopher Barnett
Cathren Gowenlock
Alvin Orbaek White
Andrew Barron
author2 Christopher Barnett
Cathren Gowenlock
Alvin Orbaek White
Andrew Barron
format Journal article
container_title Nanoscale Advances
container_volume 3
container_issue 3
container_start_page 643
publishDate 2021
institution Swansea University
issn 2516-0230
doi_str_mv 10.1039/d0na01021a
publisher Royal Society of Chemistry (RSC)
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
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description 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.
published_date 2021-01-02T04:11:11Z
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score 11.035634

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