Low force electrical switching using gold coated vertically aligned multi-walled carbon nanotubes surfaces

Yunus, E.M., McBride, J.W. and Spearing, S.M. (2008) Low force electrical switching using gold coated vertically aligned multi-walled carbon nanotubes surfaces. IEICE Technical Report, 108, (296), 61-64.


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Gold coated vertically aligned multi-walled carbon-nanotubes (Au/MWCNT) surfaces are investigated to determine the electrical contact performance under low force conditions with repeated load cycling. The multi-walled CNT's are synthesized on silicon planar and sputter coated with a gold film. These planar surfaces are mounted on the tip of a PZT actuator and mated with a coated Au hemispherical probe. The load is typical of MEMs devices, with a 4V supply, 1 and 10mA current, and applied force of 1mN. The contact resistance (Rc) is monitored with the repeated loading cycles (over 1000 and a million cycle) to determine reliability and durability testing. The surfaces are compared with a reference Au-Au contact under the same experimental conditions. This study shows the potential for the application of CNT surfaces as an interface in low force electrical contact applications.

Item Type: Article
Additional Information: Paper # EMD2008-80. International Session on Electro-Mechanical Devices 2008, Sendai, Japan, 15-16 Nov 2008
Related URLs:
Keywords: contact force, contact resistance, carbon nanotubes, Au/multi walled carbon nanotubes
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions : University Structure - Pre August 2011 > School of Engineering Sciences > Electro-Mechanical Engineering
ePrint ID: 64028
Accepted Date and Publication Date:
15 November 2008Published
Date Deposited: 26 Nov 2008
Last Modified: 31 Mar 2016 12:48
URI: http://eprints.soton.ac.uk/id/eprint/64028

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