Synthesis and characterization of an ester-terminated organic semiconductor for ethanol vapor detection

Tae Kyu An, Hui Jun Yun, Raghavendra Narote, Ran Kim, Sang Uck Lee, Yebyeol Kim, Sooji Nam, Hyojung Cha, Yong Jin Jeong, Kyunghun Kim, Shinuk Cho, Soon Ki Kwon, Yun Hi Kim, Chan Eon Park

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

An organic-field effect transistor (OFET) based on a newly synthesized organic molecule with an ester end group (ANOAT) was tested in a sensor for the detection of ethanol vapor. The linearly fused acene in ANOAT forms channel layers in the OFET and the ester end group of ANOAT interacts with ethanol vapor. The ethanol sensing ability of the ANOAT-based OFET derives not from changes in the crystalline structure of the organic semiconductor but from the interaction between ethanol vapor and the ester end group, which we demonstrated by using FT-IR analysis, computational modeling, X-ray scattering, and AFM analysis.

Original languageEnglish
Pages (from-to)2277-2284
Number of pages8
JournalOrganic Electronics
Volume15
Issue number10
DOIs
StatePublished - Oct 2014

Keywords

  • Ester end group
  • Ethanol sensor
  • Fused acene
  • Interaction
  • Organic field-effect transistor (OFET)
  • Simulation

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