Abstract
A study is conducted to report here a sensor based on an ambipolar diketopyrrolopyrrole (DPP) copolymer fi eld-effect transistor (FET) to selectively and sensitively detect xylene isomers at 40 ppm, which is below the NIOSH long-term exposure limit for xylene isomers. The rationale behind this approach is that an ambipolar FET that can operate alternatively in n-channel and p-channel modes has been adopted for the generation of double-sensing parameters in hole and electron changes, rather than using a unipolar FET. An alternating copolymer, poly(diketopyrrolopyrrole-terthiophene) is synthesized by Stille coupling, using hexyldecyl-substituted DPP fl anked with thiophene.
| Original language | English |
|---|---|
| Pages (from-to) | 4012-4018 |
| Number of pages | 7 |
| Journal | Advanced Materials |
| Volume | 28 |
| Issue number | 21 |
| DOIs | |
| State | Published - Jun 2016 |
Keywords
- ambipolar
- diketopyrrolopyrrole
- isomers
- sensors
- xylene
All Science Journal Classification (ASJC) codes
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering