Design of efficient thermally activated delayed fluorescence materials for pure blue organic light emitting diodes

Qisheng Zhang, Jie Li, Katsuyuki Shizu, Shuping Huang, Shuzo Hirata, Hiroshi Miyazaki, Chihaya Adachi

研究成果: ジャーナルへの寄稿記事

792 引用 (Scopus)

抄録

Efficient thermally activated delayed fluorescence (TADF) has been characterized for a carbazole/sulfone derivative in both solutions and doped films. A pure blue organic light emitting diode (OLED) based on this compound demonstrates a very high external quantum efficiency (EQE) of nearly 10% at low current density. Because TADF only occurs in a bipolar system where donor and acceptor centered 3ππ* states are close to or higher than the triplet intramolecular charge transfer ( 3CT) state, control of the π-conjugation length of both donor and acceptor is considered to be as important as breaking the π-conjugation between them in blue TADF material design.

元の言語英語
ページ(範囲)14706-14709
ページ数4
ジャーナルJournal of the American Chemical Society
134
発行部数36
DOI
出版物ステータス出版済み - 9 12 2012

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Organic light emitting diodes (OLED)
Fluorescence
Light
Sulfones
Quantum efficiency
Charge transfer
Current density
Derivatives

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

これを引用

Design of efficient thermally activated delayed fluorescence materials for pure blue organic light emitting diodes. / Zhang, Qisheng; Li, Jie; Shizu, Katsuyuki; Huang, Shuping; Hirata, Shuzo; Miyazaki, Hiroshi; Adachi, Chihaya.

:: Journal of the American Chemical Society, 巻 134, 番号 36, 12.09.2012, p. 14706-14709.

研究成果: ジャーナルへの寄稿記事

Zhang, Qisheng ; Li, Jie ; Shizu, Katsuyuki ; Huang, Shuping ; Hirata, Shuzo ; Miyazaki, Hiroshi ; Adachi, Chihaya. / Design of efficient thermally activated delayed fluorescence materials for pure blue organic light emitting diodes. :: Journal of the American Chemical Society. 2012 ; 巻 134, 番号 36. pp. 14706-14709.
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