Optical and charge transport properties of an ambipolar quinoidal oligothiophene derivative

J. C. Ribierre, K. Takaishi, L. Mager, T. Fujihara, T. Muto, M. Uchiyama, T. Aoyama

Research output: Contribution to journalArticlepeer-review

Abstract

We report on the charge transport and absorption properties of a low bandgap quinoidal oligothiophene derivative [QQT(CN)4]. Organic field-effect transistors based on as-prepared QQT(CN)4 thin films show an ambipolar p-type dominant behavior and can be converted to n-type by thermal annealing at 100C for 30 minutes. Absorption spectra and atomic force microscopy measurements carried out in both neat films and polymer blends provide new important insights into the role of the degree of aggregation and the intermolecular interactions on the semiconducting and photophysical properties of this organic electronic material.

Original languageEnglish
Pages (from-to)2-7
Number of pages6
JournalMolecular Crystals and Liquid Crystals
Volume566
Issue number1
DOIs
Publication statusPublished - Nov 1 2012
Externally publishedYes

Keywords

  • Quinoidal oligothiophene
  • ambipolar organic transistor
  • degree of aggregation
  • majority carrier type conversion
  • optical properties

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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