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A Highly Sensitive Diketopyrrolopyrrole-Based Ambipolar Transistor for Selective Detection and Discrimination of Xylene Isomers

  • Bin Wang
  • , Tan Phat Huynh
  • , Weiwei Wu
  • , Naseem Hayek
  • , Thu Trang Do
  • , John C. Cancilla
  • , Jose S. Torrecilla
  • , Masrur Morshed Nahid
  • , John M. Colwell
  • , Oz M. Gazit
  • , Sreenivasa Reddy Puniredd
  • , Christopher R. McNeill
  • , Prashant Sonar
  • , Hossam Haick

Research output: Contribution to journal › Article › peer-review

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 languageEnglish
Pages (from-to)4012-4018
Number of pages7
JournalAdvanced Materials
Volume28
Issue number21
DOIs
StatePublished - Jun 2016

Keywords

  • ambipolar
  • diketopyrrolopyrrole
  • isomers
  • sensors
  • xylene

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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