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Proceedings Paper

The use of nanotube structures in reducing the turn-on voltage in micro-discharges and micro-gas sensors
Author(s): Mark Tweedie; Navneet Soin; Puja Kumari; Susanta S. Roy; Ashish Mathur; Charles Mahony; Pagona Papakonstantinou; James A. D. McLaughlin
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Paper Abstract

This paper will evaluate the usefulness of two nanostructuring techniques in order to grow low turn-on voltage electrodes for use in micro-discharge plasma applications such as the ST+D Ltd e-nose device. These devices are based on micro-plasma technology and currently operate at around 150V (at 10-2 Torr) or 3KV at atmosphere utilising a propriety power source. The application of such technology is the qualitative and qualitative detection of NOx with detection capabilities as low as 5 parts per billion. The e-nose patented device has undergone basic trials in a clinical environment and it is currently demonstrating 50ppb sensitivities, with an ultimate aim of moving this to parts per trillion.

Paper Details

Date Published: 9 September 2008
PDF: 15 pages
Proc. SPIE 7037, Carbon Nanotubes and Associated Devices, 70370Z (9 September 2008); doi: 10.1117/12.799592
Show Author Affiliations
Mark Tweedie, Univ. of Ulster (United Kingdom)
Navneet Soin, Univ. of Ulster (United Kingdom)
Puja Kumari, Univ. of Ulster (United Kingdom)
Susanta S. Roy, Univ. of Ulster (United Kingdom)
Ashish Mathur, Univ. of Ulster (United Kingdom)
Charles Mahony, Univ. of Ulster (United Kingdom)
Pagona Papakonstantinou, Univ. of Ulster (United Kingdom)
James A. D. McLaughlin, Univ. of Ulster (United Kingdom)
Sensor Technology and Devices Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 7037:
Carbon Nanotubes and Associated Devices
Manijeh Razeghi; Didier Pribat; Young Hee Lee, Editor(s)

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