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The relationship between contact resistance and contact force on Au coated carbon nanotube surfaces

The relationship between contact resistance and contact force on Au coated carbon nanotube surfaces
The relationship between contact resistance and contact force on Au coated carbon nanotube surfaces
Carbon-Nanotube (CNT) coated surfaces are investigated to determine the electrical contact performance under low force conditions. The surfaces under investigation are multi-walled CNTs formed on a Silicon substrate and coated with an Au film. These planar surfaces are mated with a hemispherical Au plated probe mounted in a nano-indentation apparatus. The maximum contact force used is 1mN. The contact resistance of these surfaces is investigated as a function of the applied force and is also studied under repeated loading cycles. The surfaces are compared with a reference Au-Au contact under the same experimental conditions and the results compared to established contact theory. The results show that the multi-walled CNT surface provides a stable contact resistance, but that the performance could be improved further with the application of single-walled CNT coatings. This initial study shows the potential for the application of CNT surfaces as an interface in low force electrical contact applications.
nano-indentation apparatus, contact resistance, carbon nanotubes, and Au/multi walled carbon nanotubes
1424408385
167-174
Institute of Electrical and Electronics Engineers
Yunus, E.M
1951422c-8f0e-4815-8fbd-c1186575d773
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Yunus, E.M
1951422c-8f0e-4815-8fbd-c1186575d773
McBride, J.W.
d9429c29-9361-4747-9ba3-376297cb8770
Spearing, S.M.
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a

Yunus, E.M, McBride, J.W. and Spearing, S.M. (2007) The relationship between contact resistance and contact force on Au coated carbon nanotube surfaces. In Proceedings of The 53rd IEEE Holm Conference on Electrical Contacts, 2007. Institute of Electrical and Electronics Engineers. pp. 167-174 . (doi:10.1109/HOLM.2007.4318212).

Record type: Conference or Workshop Item (Paper)

Abstract

Carbon-Nanotube (CNT) coated surfaces are investigated to determine the electrical contact performance under low force conditions. The surfaces under investigation are multi-walled CNTs formed on a Silicon substrate and coated with an Au film. These planar surfaces are mated with a hemispherical Au plated probe mounted in a nano-indentation apparatus. The maximum contact force used is 1mN. The contact resistance of these surfaces is investigated as a function of the applied force and is also studied under repeated loading cycles. The surfaces are compared with a reference Au-Au contact under the same experimental conditions and the results compared to established contact theory. The results show that the multi-walled CNT surface provides a stable contact resistance, but that the performance could be improved further with the application of single-walled CNT coatings. This initial study shows the potential for the application of CNT surfaces as an interface in low force electrical contact applications.

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Yunus,_McBride,_Spearing_Holm_paper.pdf - Other
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More information

Published date: 24 September 2007
Venue - Dates: The 53rd IEEE Holm Conference on Electrical Contacts, 2007-09-16 - 2007-09-19
Keywords: nano-indentation apparatus, contact resistance, carbon nanotubes, and Au/multi walled carbon nanotubes

Identifiers

Local EPrints ID: 48464
URI: http://eprints.soton.ac.uk/id/eprint/48464
ISBN: 1424408385
PURE UUID: d703554f-ba00-478a-9095-755c020bfbec
ORCID for S.M. Spearing: ORCID iD orcid.org/0000-0002-3059-2014

Catalogue record

Date deposited: 03 Oct 2007
Last modified: 10 Dec 2019 01:45

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