Blue-light-emitting ambipolar field-effect transistors using an orqanic single crystal of 1,4-Bis(4-methylstyryl)benzene

Hajime Nakanotani, Ryota Kabe, Masayuki Yahiro, Taishi Takenobu, Yoshihiro Iwasa, Chihaya Adachi

Research output: Contribution to journalArticle

11 Citations (Scopus)


An ambipolar light-emitting organic field-effect transistor (LE-OFET) based on a 1,4-Bis(4-methylstyryl)benzene (BSB-Me) single crystal was developed. The BSB-Me single crystal has very high photoluminescence quantum efficiency (φPL) of 89 ± 2%, while φPL of the BSB-Me vapor-deposited film is limited to a much lower value of 54 ± 2%. Ambipolar operation with successive blue electroluminescence from the FETs based on the BSB-Me single crystals was demonstrated by realizing nearly equal electron and hole mobilities [about 0.005 cm2/(Vs)] with asymmetric gold-calcium contacts. Since BSB-Me single crystals can perform light amplification, the BSB-Me-based ambipolar LE-OFET is a promising candidate for future electrically driven organic blue-emitting solid-state lasers.

Original languageEnglish
Pages (from-to)918011-918013
Number of pages3
JournalApplied Physics Express
Issue number9
Publication statusPublished - Sep 1 2008

All Science Journal Classification (ASJC) codes

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

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