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Bias-heating recovery of MWCNT gas sensor
- Authors
- Moon, Seung-Il; Paek, Kyeong-Kap; Lee, Yun-Hi; Park, Hun-Kuk; Kim, Jai-Kyeong; Kim, Soo-Won; Ju, Byeong-Kwon
- Issue Date
- 31-5월-2008
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- bias-heating recovery; gas sensor; multiwall carbon nanotubes
- Citation
- MATERIALS LETTERS, v.62, no.15, pp.2422 - 2425
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS LETTERS
- Volume
- 62
- Number
- 15
- Start Page
- 2422
- End Page
- 2425
- ISSN
- 0167-577X
- Abstract
- sensor was made using Au/Cr electrodes on a glass substrate and a thin carbon multiwall nanotube film printed between them. A bias-heating method was used completely to desorb gas molecules and restore its initial conductance. The temperature of the thin carbon nanotube film varied depending on the magnitude of the voltage used, and this relationship was investigated. After being used to detect NO2, the sensor returned to its initial conductance. This method enables complete recovery without additional processing steps, such as the fabrication of heat structure and ambient heating. (c) 2007 Elsevier B.V. All rights reserved.
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