Thin film characteristics and FET performances of β-octyl-substituted long oligothiophenes

Kazuo Takimiya, Katsuhiro Sakamoto, Tetsuo Otsubo, Yoshihito Kunugi

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

A series of β-octyl-substituted oligothiophenes from 6-mer to 41-mer was examined for active layers of organic filed-effect transistors. Upon spin-coating from chloroform solution, the 20-mer and the longer oligomers formed homogenous thin films composed of stacked lamella structures. Top-contact devices fabricated using these films showed good p-channel FET characteristics with mobilities of 10 -3 cm 2 V -1 s -1 which gradually increase with the extension of chain length.

Original languageEnglish
Pages (from-to)942-943
Number of pages2
JournalChemistry Letters
Volume35
Issue number8
DOIs
Publication statusPublished - 2006 Aug 5
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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