Highly luminescent π-conjugated dithienometalloles: Photophysical properties and their application in organic light-emitting diodes

Ryosuke Kondo, Takuma Yasuda, Yu Seok Yang, Jun Yun Kim, Chihaya Adachi

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31 Citations (Scopus)


We have disclosed the photophysical and electroluminescent properties of a series of hetero-annulated π-conjugated dithieno[3,2-b:2′,3′-d] metallole derivatives incorporating Ge, Si, P, and S atoms as a bridging center. The influence of the hetero-annulated structures on their photophysical properties has been investigated systematically by UV/vis and photoluminescence (PL) spectroscopy, transient PL measurements, and DFT calculations. All these compounds show bright fluorescence with high quantum yields both in solutions and in doped thin films with a host matrix. Furthermore, the OLEDs employing the dithienometallole emitters exhibit high external quantum efficiencies of ∼6% at a practical brightness.

Original languageEnglish
Pages (from-to)16810-16816
Number of pages7
JournalJournal of Materials Chemistry
Issue number33
Publication statusPublished - Sep 7 2012


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

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