Light Emission from Organic Single-Crystal Field-Effect Transistors

  • Nakamura Kiyoshi
    Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University
  • Ichikawa Musubu
    Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University
  • Fushiki Rei
    Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University
  • Kamikawa Taketomi
    Technology Platform Research Center, Seiko Epson Corporation
  • Inoue Masamitsu
    Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University
  • Koyama Toshiki
    Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University
  • Taniguchi Yoshio
    Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University

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Description

We have demonstrated electroluminescence from field-effect transistors (FETs) of an organic single crystal. We used top-contact-configuration FETs with Au and Al (or MgAg) as source and drain electrodes, respectively. The devices exhibited p-type unipolar behavior and light emission depending on gate voltages and metal species of the drain contact. Moreover, the light intensity increased in the saturation region of drain current.

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