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Pressure dependent conduction of individual multi-walled carbon nanotubes: the effect of mechanical distortions / Chris Barnett; Cathren Gowenlock; Alvin Orbaek White; Andrew Barron

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

Swansea University Authors: Chris, 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...

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Published in: Nanoscale Advances
ISSN: 2516-0230
Published: Royal Society of Chemistry (RSC) 2021
Online Access: Check full text

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.
College: College of Engineering
Issue: 3
Start Page: 643
End Page: 646