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 language | English |
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Pages (from-to) | S163-S166 |
Journal | Current Applied Physics |
Volume | 11 |
Issue number | 4 SUPPL. |
DOIs | |
Publication status | Published - 2011 Jul |
Keywords
- Environment sensor
- Gas sensor
- OTFTs
- Odor sensor
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)