Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2008.11a
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- Pages.382-383
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- 2008
Response properties of alcohol gas sensors depositing MWNT-composites by spray method
MWNT를 스프레이 코팅한 가스센서의 알콜 가스 응답 특성
- Choi, Young-Min (Kyungnam University) ;
- Gam, Byung-Min (Kyungnam University) ;
- Lee, Ho-Jung (Kyungnam University) ;
- Kim, Seong-Jeen (Kyungnam University)
- Published : 2008.11.06
Abstract
In this paper we presented experimental results of a gas sensor utilizing multi-walled carbon nanotube (MWNT)composites for the alcohol detection which is useful to checking drinking and driving, for example. The MWNT-composites were deposited using spray method on PES substrates suitable for use in low-cost and flexible sensors. We observed the variation of conductance from the sensors exposed to alcohol vapors evaporated at 37C equal to the human body temperature to match real condition. As the result, the conductance was decreased with the increase of ethanol vol% diluted in water. The sensors showed good sensitivity and linearity.