Development of an ozone gas sensor using single-walled carbon nanotubes

Title
Development of an ozone gas sensor using single-walled carbon nanotubes
Authors
박영민동기영이진우최진일배귀남주병권
Keywords
Single-walled carbon nanotubes; Gas sensor; O3 gas; N,N-dimethylformamide (DMF); Thermal treatment
Issue Date
2009-07
Publisher
Sensors and actuators. B, Chemical
Citation
VOL 140, NO 2, 407-411
Abstract
This study deals with the fabrication of an ozone gas sensor using single-walled carbon nanotubes (SWCNTs) as sensing material. The SWCNTs are dispersed by N,N-dimethylformamide (DMF). The CNT-DMF solution was dropped between interdigitated electrodes’ fingers to fabricate ozone gas sensor. For ozone environment, a commercial ozone generator was introduced. To improve sensor response, the deposited carbon nanotubes network was thermally treated at high temperature in a furnace. The sensor exhibits high sensitivity to ozone gas at concentration as lowas 50 ppb, and fast response time, which is promising for future commercialization of carbon nanotubes based ozone gas sensor.
URI
http://pubs.kist.re.kr/handle/201004/35547
ISSN
0925-4005
Appears in Collections:
KIST Publication > Article
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