Very high mobility in solution-processed organic thin-film transistors of highly ordered [1]benzothieno[32-b]benzothiophene derivatives

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

Research output: Contribution to journalArticlepeer-review

197 Citations (Scopus)

Abstract

Field-effect mobility as high as 5 cm2/(Vs) is achieved in solution-processed organic thin-film transistors with the development of a method for growing highly-oriented crystalline films of [1]benzothieno[32-b] benzothiophene derivatives. A droplet of the solution is sustained at an edge of a structure on an inclined substrate so that the crystalline domain grows in the direction of inclination. The oriented growth realizes excellent molecular ordering that manifests itself in micrometer-scale molecular terraces on the surface as a result of the self-organizing function of the material. The unprecedented performance achieved using an easy fabrication process has increased attractiveness of organic thin-film transistors for industrial applications.

Original languageEnglish
Article number111501
JournalApplied Physics Express
Volume2
Issue number11
DOIs
Publication statusPublished - 2009 Nov 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Very high mobility in solution-processed organic thin-film transistors of highly ordered [1]benzothieno[32-b]benzothiophene derivatives'. Together they form a unique fingerprint.

Cite this