5',5″-(9,10-Bis((4-hexylphenyl)ethynyl) anthracene-2,6-diyl)bis(5- hexyl-2,2'-bithiophene) as an organic semiconductor and its application to thin film transistors

Suk Young Bae, So Young Jo, Kyung Hwan Kim, Tae Wan Lee, Dong Hoon Choi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

New anthracene-containing conjugated molecules have been synthesized through Stille coupling reaction. 2,6-Dibromo-9,10-bis(4-hexylphenyl)ethynyl) anthracene and 2,6-dibromo-9,10-bis(phenylethynyl)anthracene were reacted with tributyl(5'-hexyl-2,2'-bithiophen-5-yl)stannane to yield 5',5″-(9,10- bis(phenylethynyl)anthracene-2,6-diyl)bis(5-hexyl-2,2'-bithiophene), 1 and 5',5″-(9,10-bis((4-hexylphenyl)ethynyl) anthracene-2,6-diyl)bis(5-hexyl-2, 2'-bithiophene), 2. The molecule, 2 only exhibit good solubility in common organic solvents and good self-film-forming properties. The semiconducting properties of the molecule, 2 were evaluated in organic thin film transistors (OTFTs). The molecule, 2 exhibits charge carrier mobilities-as high as 5.3 × 10-3 cm2 V-1 -1 (I ON/IOFF = 2.43 × 105) without thermal annealing process.

Original languageEnglish
Pages (from-to)175-181
Number of pages7
JournalMolecular Crystals and Liquid Crystals
Volume538
DOIs
Publication statusPublished - 2011 Jun 1

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Keywords

  • Anthracene
  • bithiophene
  • conjugated molecules
  • mobility
  • organic thin film transistor
  • semiconductor

ASJC Scopus subject areas

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

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