The response characteristics of odor sensor based on organic thin-film transistor for environment malodor measurements
- Authors
- Jeong, Jin Wook; Park, Young Wook; Park, Tae Hyun; Choi, Jin Hwan; Choi, Hyun Ju; Song, Eun Ho; Ju, Byeong Kwon
- Issue Date
- 7월-2011
- Publisher
- ELSEVIER
- Keywords
- OTFTs; Gas sensor; Odor sensor; Environment sensor
- Citation
- CURRENT APPLIED PHYSICS, v.11, no.4, pp.S163 - S166
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 11
- Number
- 4
- Start Page
- S163
- End Page
- S166
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/112163
- DOI
- 10.1016/j.cap.2011.07.023
- ISSN
- 1567-1739
- Abstract
- This paper studies the response characteristics of an odor sensor based on organic thin-film transistors (OTFTs) obtained from spin-coated poly-3-hexylthiophene (P3HT) on a thermally grown SiO2/Si wafer. The response characteristics of the odor sensor based on OTFTs are measured for odor gases generated from liquid fumes of 2-mercaptoethanol and 3-methylindole, such as are typically emitted by pig slurry in ambient air conditions. The experiments show that the response characteristics of the OTFT, when exposed to the 2-mercaptoethanol and 3-methylindole gases, result in a threshold voltage shift, a change in drain current, and a change in mobility with the gate bias. (C) 2011 Elsevier B. V. All rights reserved.
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