Organic feld-effect transistors based on high hole mobility of monodisperse glassy-nematic oligofluorenes

Takeshi Yasuda, Yoshinobu Furusawa, Katsuhiko Fujita, Shaw H. Chen, Tetsuo Tsutsui

Research output: Contribution to conferencePaperpeer-review

Abstract

The present study takes advantage of molecular self-assembly of Oligofluorenes for the preparation of organic field-effect transistors. These new materials permit a systematic investigation of carrier mobility in monodomain and polydomain glassy-nematic films in addition to glassy-amorphous films. It was found that mobility increases with oligomer length and that the mobility of a long-chain polymer is limited by its persistence length. At a sufficient molecular length, an oligomer's mobility was shown to surpass that of its polymer analogue. For instance, a monodomain film of a dodecafluorene exhibited a hole mobility of 0.012 cm 2/Vs, an enhancement over a glassy-amorphous film by a factor of 800.

Original languageEnglish
Pages1405
Number of pages1
Publication statusPublished - 2005
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: May 25 2005May 27 2005

Other

Other54th SPSJ Annual Meeting 2005
CountryJapan
CityYokohama
Period5/25/055/27/05

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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