New semiconducting multi-branched conjugated molecules based on π-extended triphenylene and its application to organic field-effect transistor

Mai Ha Hoang, Min Ju Cho, Kyung Hwan Kim, Mi Yeon Cho, Jin soo Joo, Dong Hoon Choi

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Triphenylene derivatives are the most well-known representatives of discotic liquid crystals forming columnar mesophases. In this work, the authors report on the design and synthesis of new semiconducting materials, based on a triphenylene core, those are solution processable. These molecules have a good solubility and are applicable to soluble processing for organic field-effect transistor (OFET). Their thermal stabilities and dynamic behaviors are suitable for OFET device fabrication. In comparison with all of previous reported triphenylenes derivatives, these molecules have lower bandgap energies. As far as we know, there are few reports on the application of π-extended triphenylene systems to OFET. The semiconducting properties of these molecules were quite promising for further designs of π-extended triphenylene derivatives.

Original languageEnglish
Pages (from-to)501-506
Number of pages6
JournalThin Solid Films
Volume518
Issue number2
DOIs
Publication statusPublished - 2009 Nov 30

Keywords

  • Conjugated semiconductor
  • Mobility
  • Organic field-effect transistor
  • π-extended triphenylene

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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