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Improving the contact resistance at low force using gold coated carbon nanotube surfaces

Published online by Cambridge University Press:  26 February 2010

J. W. McBride ,
E. M. Yunus  and
S. M. Spearing
J. W. McBride*
Affiliation:
School of Engineering Sciences, University of Southampton, Southampton, SO17 1BJ, UK
E. M. Yunus
Affiliation:
School of Engineering Sciences, University of Southampton, Southampton, SO17 1BJ, UK
S. M. Spearing
Affiliation:
School of Engineering Sciences, University of Southampton, Southampton, SO17 1BJ, UK
*
[email protected]
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Abstract

Investigations to determine the electrical contact performance under repeated cycles at low force conditions for carbon-nanotube (CNT) coated surfaces were performed. The surfaces under investigation consisted of multi-walled CNT synthesized on a silicon substrate and coated with a gold film. These planar surfaces were mounted on the tip of a PZT actuator and contacted with a plated Au hemispherical probe. The dynamic applied force used was 1 mN. The contact resistance (Rc ) of these surfaces was investigated with the applied force and with repeated loading cycles performed for stability testing. The surfaces were compared with a reference Au–Au contact under the same experimental conditions. This initial study shows the potential for the application of gold coated CNT surfaces as an interface in low force electrical contact applications.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 50 , Issue 1: Focus on Electrical Contacts , April 2010 , 12904
Copyright
© EDP Sciences, 2010

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