Organic light-emitting transistors

Takahito Oyamada, Hiroyuki Uchiuzo, Noriyuki Shimoji, Kazumi Matsushige, Hiroyuki Sasabe, Chihaya Adachi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We succeeded in observing electroluminescence (EL) of Tetraphenylpyrene (TPPy) as an active layer in an organic field-effect transistor (OFET). In particular, an OFET with a short channel of dSD<1.0μm demonstrated higher EL efficiency than one with a much longer channel (dSD>10μm). We observed a maximum EL quantum efficiency (ηmax) of ∼0.3% in the short-channel-length device at an applied source-drain voltage of Vd∼-100 V and a gate voltage of Vg>-50 V. From the OFET characteristics, although the TPPy layer demonstrated typical p-type operation, the occurrence of EL clearly indicated simultaneous hole and electron injection from the source and drain electronics, respectively, under high Vd and Vg.

Original languageEnglish
Title of host publicationProceedings of the International Display Manufacturing Conference and Exhibition, IDMC'05
EditorsH.P. David Shieh, F.C. Chen
Number of pages2
Publication statusPublished - 2005
Externally publishedYes
EventInternational Display Manufacturing Conference and Exhibition, IDMC'05 - Taipei, Japan
Duration: Feb 21 2005Feb 24 2005

Publication series

NameInternational Display Manufacturing Conference and Exhibition, IDMC'05


OtherInternational Display Manufacturing Conference and Exhibition, IDMC'05

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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