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

Youngmin Park; Ki Young Dong; Jinwoo Lee; Jinnil Choi; Gwi Nam Bae; Byeong Kwon Ju

doi:10.1016/j.snb.2009.04.055

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

Youngmin Park, Ki Young Dong, Jinwoo Lee, Jinnil Choi, Gwi Nam Bae, Byeong Kwon Ju

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

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.

Original language	English
Pages (from-to)	407-411
Number of pages	5
Journal	Sensors and Actuators, B: Chemical
Volume	140
Issue number	2
DOIs	https://doi.org/10.1016/j.snb.2009.04.055
Publication status	Published - 2009 Jul 16

Keywords

Gas sensor
N,N-dimethylformamide (DMF)
O gas
Single-walled carbon nanotubes
Thermal treatment

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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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.",

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