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The use of nanotube structures in reducing the turn-on voltage in micro-discharges and micro-gas sensors - art. no. 70370Z

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Tweedie, M, Soin, N, Kumari, P, Roy, SS, Mathur, A, Mahony, CMO, Papakonstantinou, P and McLaughlin, JAD (2008) The use of nanotube structures in reducing the turn-on voltage in micro-discharges and micro-gas sensors - art. no. 70370Z. In: CARBON NANOTUBES AND ASSOCIATED DEVICES, San Diego, USA. SPIE-INT SOC OPTICAL ENGINEERING. Vol 7037 15 pp. [Conference contribution]

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DOI: 10.1117/12.799592

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 microplasma 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.

Item Type:Conference contribution (Paper)
Keywords:Carbon nanotubes; ZnO nanotubes; nanostructures; nanoneedles; micro-plasma; micro-discharge; gas sensor; electronic nose
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:212
Deposited By:Mrs Ann Blair
Deposited On:11 Sep 2009 10:56
Last Modified:15 Jun 2011 10:51

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