The response characteristics of odor sensor based on organic thin-film transistor for environment malodor measurements

Jin Wook Jeong, Young Wook Park, Tae Hyun Park, Jin Hwan Choi, Hyun Ju Choi, Eun Ho Song, Byeong Kwon Ju

Research output: Contribution to journalArticle

2 Citations (Scopus)

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.

Original languageEnglish
JournalCurrent Applied Physics
Volume11
Issue number4 SUPPL.
DOIs
Publication statusPublished - 2011 Jul 1

Fingerprint

odors
Odors
Thin film transistors
Skatole
transistors
Mercaptoethanol
sensors
Sensors
thin films
Gases
fumes
Fumes
swine
Drain current
Threshold voltage
gases
threshold voltage
wafers
shift
air

Keywords

  • Environment sensor
  • Gas sensor
  • Odor sensor
  • OTFTs

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

The response characteristics of odor sensor based on organic thin-film transistor for environment malodor measurements. / Jeong, Jin Wook; Park, Young Wook; Park, Tae Hyun; Choi, Jin Hwan; Choi, Hyun Ju; Song, Eun Ho; Ju, Byeong Kwon.

In: Current Applied Physics, Vol. 11, No. 4 SUPPL., 01.07.2011.

Research output: Contribution to journalArticle

Jeong, Jin Wook ; Park, Young Wook ; Park, Tae Hyun ; Choi, Jin Hwan ; Choi, Hyun Ju ; Song, Eun Ho ; Ju, Byeong Kwon. / The response characteristics of odor sensor based on organic thin-film transistor for environment malodor measurements. In: Current Applied Physics. 2011 ; Vol. 11, No. 4 SUPPL.
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