Constructing Charge‐Transfer Excited States Based on Frontier Molecular Orbital Engineering: Narrowband Green Electroluminescence with High Color Purity and Efficiency

DOI Web Site Web Site 被引用文献4件
  • Yincai Xu
    State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 China
  • Chenglong Li
    State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 China
  • Zhiqiang Li
    Jihua Laboratory 13 Nanpingxi Road Foshan 528200 Guangdong Province China
  • Qingyang Wang
    State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 China
  • Xinliang Cai
    State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 China
  • Jinbei Wei
    State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 China
  • Yue Wang
    State Key Lab of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 China

書誌事項

公開日
2020-08-06
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/ange.202007210
公開者
Wiley

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説明

<jats:title>Abstract</jats:title><jats:p>The design and synthesis of organic materials with a narrow emission band in the longer wavelength region beyond 510 nm remain a great challenge. For constructing narrowband green emitters, we propose a unique molecular design strategy based on frontier molecular orbital engineering (FMOE), which can integrate the advantages of a twisted donor–acceptor (D‐A) structure and a multiple resonance (MR) delayed fluorescence skeleton. Attaching an auxiliary donor to a MR skeleton leads to a novel molecule with twisted D‐A and MR structure characteristics. Importantly, a remarkable red‐shift of the emission maximum and a narrowband spectrum are achieved simultaneously. The target molecule has been employed as an emitter to fabricate green organic light‐emitting diodes (OLEDs) with Commission Internationale de L'Eclairage (CIE) coordinates of (0.23, 0.69) and a maximum external quantum efficiency (EQE) of 27.0 %.</jats:p>

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