Three-dimensional organic field-effect transistors using solution-processed thin films of benzothieno-benzothiophene derivatives

Wanyan Li, Mayumi Uno, Yuri Hirose, Takafumi Uemura, Kazuo Takimiya, Jun Takeya

Research output: Contribution to journalArticlepeer-review

Abstract

Organic field-effect transistors utilizing solution-processed benzothieno-benzothiophene is developed using a three-dimensional field-effect transistor structure, which comprises multiple vertical channels to enhance their output drain current. The soluble benzothieno-benzothiophene thin films were formed on vertical channels using different solvents, and the mobility is estimated to be 3.7 × 10-3cm2/Vs. Nevertheless, extremely large values of channel width divided by length enables current amplification up to 0.7mA per device area of 1cm2, even with the low carrier mobility. The result demonstrates the usefulness of the three-dimensional structure to produce high output currents for device applications.

Original languageEnglish
Pages (from-to)58/[398]-62/[402]
JournalMolecular crystals and liquid crystals
Volume539
DOIs
Publication statusPublished - 2011
Externally publishedYes

Keywords

  • Organic field-effect transistor
  • organic semiconductor
  • solution process
  • three-dimensional transistor
  • vertical transistor

ASJC Scopus subject areas

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

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