Thermally activated delayed fluorescence of Bis(9,9-dimethyl-9,10-dihydroacridine) dibenzo[b,d]thiophene 5,5-dioxide derivatives for organic light-emitting diodes

Jong Uk Kim, Saripally Sudhaker Reddy, Lin Song Cui, Hiroko Nomura, Sunbin Hwang, Dae Hyeon Kim, Hajime Nakanotani, Sung Ho Jin, Chihaya Adachi

研究成果: Contribution to journalArticle査読

5 被引用数 (Scopus)

抄録

Two luminescent dibenzo[b,d]thiophene 5,5-dioxide derivatives combined with 9,9-dimethyl-9,10-dihydroacridine were synthesized and the appearance of thermally activated delayed fluorescence was confirmed. Both 3,7- and 2,8-bis(9,9-dimethyl-9,10-dihydroacridine)dibenzo[b,d]thiophene 5,5-dioxide (3ASOA) and (4ASOA) showed prompt and delayed fluorescence with high total photoluminescence (PL) quantum efficiencies of 72% and 88% in their doped films, respectively. The maximum external electroluminescence (EL) efficiencies of 13.8% in 4ASOA and 10.4% in 3ASOA were obtained. Further, 4ASOA showed slightly relaxed rolloff behavior, indicating that 2,8-substitution of the donors appreciably improved both PL and EL characteristics.

本文言語英語
ページ(範囲)485-491
ページ数7
ジャーナルJournal of Luminescence
190
DOI
出版ステータス出版済み - 10 2017

All Science Journal Classification (ASJC) codes

  • 生物理学
  • 生化学
  • 化学 (全般)
  • 原子分子物理学および光学
  • 凝縮系物理学

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