Ambipolar light-emitting organic field-effect transistors using a wide-band-gap blue-emitting small molecule

Tomo Sakanoue, Masayuki Yahiro, Chihaya Adachi, Hiroyuki Uchiuzou, Takayoshi Takahashi, Akio Toshimitsu

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

The authors applied a wide-band-gap (2.9 eV) molecule of 4,- 4′ -bis(styryl)biphenyl (BSBP) as an active layer in light-emitting organic field-effect transistors. They found that BSBP provided both relatively high field-effect hole mobility of 0.01 cm2 V s and photoluminescence efficiency of 20% in thin film. They achieved ambipolar operation by without breaking vacuum through devices' preparation and measurements, applying aluminum contacts, and inserting a hydroxyl-free poly(methylmethacrylate) layer, and light emission was observed when the device was operated in the ambipolar mode. The results presented here will open the way to fabricating efficient light-emitting transistors with high mobility.

Original languageEnglish
Article number171118
JournalApplied Physics Letters
Volume90
Issue number17
DOIs
Publication statusPublished - 2007
Externally publishedYes

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field effect transistors
broadband
hole mobility
light emission
molecules
transistors
aluminum
photoluminescence
vacuum
preparation
thin films

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Sakanoue, T., Yahiro, M., Adachi, C., Uchiuzou, H., Takahashi, T., & Toshimitsu, A. (2007). Ambipolar light-emitting organic field-effect transistors using a wide-band-gap blue-emitting small molecule. Applied Physics Letters, 90(17), [171118]. https://doi.org/10.1063/1.2734389

Ambipolar light-emitting organic field-effect transistors using a wide-band-gap blue-emitting small molecule. / Sakanoue, Tomo; Yahiro, Masayuki; Adachi, Chihaya; Uchiuzou, Hiroyuki; Takahashi, Takayoshi; Toshimitsu, Akio.

In: Applied Physics Letters, Vol. 90, No. 17, 171118, 2007.

Research output: Contribution to journalArticle

Sakanoue, T, Yahiro, M, Adachi, C, Uchiuzou, H, Takahashi, T & Toshimitsu, A 2007, 'Ambipolar light-emitting organic field-effect transistors using a wide-band-gap blue-emitting small molecule', Applied Physics Letters, vol. 90, no. 17, 171118. https://doi.org/10.1063/1.2734389
Sakanoue, Tomo ; Yahiro, Masayuki ; Adachi, Chihaya ; Uchiuzou, Hiroyuki ; Takahashi, Takayoshi ; Toshimitsu, Akio. / Ambipolar light-emitting organic field-effect transistors using a wide-band-gap blue-emitting small molecule. In: Applied Physics Letters. 2007 ; Vol. 90, No. 17.
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