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Arylfluorene based universal hosts for solution- processed RGB and white phosphorescent organic light-emitting devices

机译:基于芳基的RGB和白色磷光有机发光器件的芳基氟醚基的通用主机

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摘要

A series of solution-processible arylfluorenes (AFs)/carbazole hybrid compounds (SmeFCz, DMeFCz, SMeOFCz, DMeOFCz, SFFCz and DFFCz) have been designed and synthesized via a simple one-step reaction. These compounds exhibit good thermal stability, excellent solubility and high triplet energy levels, which can be used as universal hosts for solution-processed phosphorescent organic light- emitting devices (PhOLEDs). Employing the developed materials, highly efficient blue (DMeFCz :CEmax: 20.0 cd A~(-1) , EQEE_(max): 10.0%), green (DMeFCz :CEmax: 26.0 cd A~(-1) , EQEE_(max): 7.8%) and red (SMeFCz :CE_(max): 13.7 cd A~(-1) , EQEE_(max): 8.2%) PhOLEDs fabricated by spin-coating in different device configurations have been demonstrated. Furthermore, complementary-color, single-emitting layer white phosphorescent device were also obtained. The SMeOFCz-based white device exhibited highly efficient white-light emission with a maximum efficiency of 27.1 cd A~(-1) (EQE of 12.0%). The state-of-art performance indicates that AFs/carbazole hybrid hosts have a favorable prospect for applications in solution-processed full-color displays and white PhOLEDs.
机译:通过简单的一步反应设计和合成,通过简单的一步反应设计和合成了一系列溶液 - 可行的芳基氟烯烯(AFS)/咔唑杂化化合物(SMEFCZ,DMEFCZ,SMEOFCZ,DMEOFCZ,SFFCCZ和DFFCCZ)。这些化合物表现出良好的热稳定性,优异的溶解度和高三重态能级,可用作溶液加工磷光有机发光器件(Pholeds)的通用宿主。采用发发的材料,高效的蓝色(DMEFCZ:CEMAX:20.0 CD A〜(-1),EQEE_(MAX):10.0%),绿色(DMEFCZ:CEMAX:26.0 CD A〜(-1),EQEE_(MAX) :7.8%)和红色(SMEFCZ:CE_(MAX):13.7 CD A〜(-1),EQEE_(MAX):8.2%)通过不同的装置配置中的旋转涂层制造的Pholeds。此外,还获得了互补颜色的单发光层白色磷光装置。基于中小企业的白色器件具有高效的白光发射,最大效率为27.1cd a〜(-1)(EQE为12.0%)。最先进的性能表明,AFS /咔唑混合主机在解决方案处理的全彩色显示器和白色PHOLED中具有有利的应用前景。

著录项

  • 来源
    《RSC Advances》 |2015年第114期|共7页
  • 作者

    Xinwen Zhang; Tao Yang; Qi Wei;

  • 作者单位

    Key Laboratory for Organic Electronics and Information Displays &

    Institute of Advanced Materials Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing University of Posts &

    Telecommunications Nanjing 210023 China.;

    Key Laboratory for Organic Electronics and Information Displays &

    Institute of Advanced Materials Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing University of Posts &

    Telecommunications Nanjing 210023 China.;

    Key Laboratory for Organic Electronics and Information Displays &

    Institute of Advanced Materials Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing University of Posts &

    Telecommunications Nanjing 210023 China.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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