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

Authors
Park, YoungminDong, Ki-YoungLee, JinwooChoi, JinnilBae, Gwi-NamJu, Byeong-Kwon
Issue Date
16-7월-2009
Publisher
ELSEVIER SCIENCE SA
Keywords
Single-walled carbon nanotubes; Gas sensor; O-3 gas; N,N-dimethylformamide (DMF); Thermal treatment
Citation
SENSORS AND ACTUATORS B-CHEMICAL, v.140, no.2, pp.407 - 411
Indexed
SCIE
SCOPUS
Journal Title
SENSORS AND ACTUATORS B-CHEMICAL
Volume
140
Number
2
Start Page
407
End Page
411
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/119661
DOI
10.1016/j.snb.2009.04.055
ISSN
0925-4005
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 low as 50 ppb, and fast response time, which is promising for future commercialization of carbon nanotubes based ozone gas sensor. (C) 2009 Elsevier B.V. All rights reserved.
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