Bipolar transport materials for electroluminescence applications

Yi Wei Tsai, Jen Shyang Ni, Feng Ling Wu, Ming Chang P. Yeh*, Yu Jen Cheng, Li Zhong Tsai, Siao Yin Yu, San Yu Ting, Li Yin Chen, Yuh Sheng Wen, Mandy M. Lee, Jiann T. Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Benzofuranyl benzene incorporating naphthyl (phenothiazinyl or dimesitylboryl) entities via meta-conjugation have been synthesized. These compounds exhibit bipolar transport characteristic with mobilities in the range of 10-5 to 10-4 cm2/V s at an electric field of 4 × 105 V/cm. The compounds with two naphthyl or dimesitylboryl substituents emit in the violet region with good solution quantum yields. The OLEDs fabricated from the benzofuranyl/dimethylboryl, benzofuranyl/naphthyl and benzofuranyl/dimethylboryl/phenathiazine derivatives have maximum external efficiencies of 1.01%, 1.41% and 3.14%, respectively.

Original languageEnglish
Pages (from-to)265-274
Number of pages10
JournalOrganic Electronics
StatePublished - 1 Mar 2016


  • 2,3-benzofuran
  • Ambipolar
  • Flurorescence emitter
  • Organic light emitting diode
  • Wide band gap

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