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Nanotube-based chemical sensors

Norani Muti , Mohamed and Thaha , H. and Dzilal , A. and Dennis , J.O. (2007) Nanotube-based chemical sensors. In: 2007 International Conference on Intelligent and Advanced Systems, ICIAS 2007, 25 November 2007 through 28 November 2007, Kuala Lumpur.

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Abstract

Sensor technology has drawn a tremendous amount of attention because of its ability to provide fast feedback on the environment. This has led to intensive research activities worldwide to develop new sensing materials and technologies. With the advancement in nanotechnology, miniaturized sensors with reduced weight, lower power consumption, and low cost can be realized. In order to realize this potential, it is critical to develop reliable growth techniques capable of producing high purity, density and desired properties of the sensing element. This article focuses on the production of good quality sensing elements in the form of nanotubes; carbon nanotubes (CNTs) and titania nanotubes. Both types of CNTs, single-walled (SWCNT) and multiwalled (MWCNT) grown in the form of vertically aligned film on the substrates are believed to have enhanced sensing properties because of their high purity and directionality. Similarly with titania nanotubes, their sensitivity and selectivity towards hydrogen would be greatly increased because of their quality. Based on the changes in the specific properties of these nanotubes, chemical sensors can then be developed. ©2007 IEEE.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Chemical properties; Chemical sensors; Hydrogen; Nanotubes; Sensors; Titanium dioxide; Titanium oxides; Growth techniques; High purities; Intensive researches; Low costs; Miniaturized sensors; Multi walled; Power consumptions; Sensing elements; Sensing materials; Sensing properties; Sensor technologies; Specific properties; Titania nanotubes; Vertically aligned; Carbon nanotubes
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments / MOR / COE:Departments > Electrical & Electronic Engineering
ID Code:263
Deposited By: Assoc Prof Dr Norani Muti Mohamed
Deposited On:02 Mar 2010 01:18
Last Modified:19 Jan 2017 08:27

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