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 journalArticlepeer-review

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

Bibliographical note

Funding Information:
This study was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Knowledge Economy, Republic of Korea (M2007010004) and by the Korea Science and Engineering Foundation grant (2009-0054103). This work was also supported by Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF20100020209). Particularly, Prof. D.H. Choi thanks the financial support by the Seoul R&BD Program (10543, 2009–2010).

Keywords

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

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of '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'. Together they form a unique fingerprint.

Cite this