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首页> 外文期刊>Advanced Functional Materials >Similar or Totally Different: The Control of Conjugation Degree through Minor Structural Modifications, and Deep-Blue Aggregation-Induced Emission Luminogens for Non-Doped OLEDs
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Similar or Totally Different: The Control of Conjugation Degree through Minor Structural Modifications, and Deep-Blue Aggregation-Induced Emission Luminogens for Non-Doped OLEDs

机译：相似或完全不同：非掺杂OLED通过较小的结构修饰和深蓝色聚集诱导的发光源控制共轭度

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摘要

Four 4,4'-bis(1,2,2-triphenylvinyl)biphenyl (BTPE) derivatives, 4,4'-bis(1,2,2-triphenylvinyl)biphenyl, 2,3-bis(1,2,2-triphenyivinyl)biphenyl, 2,4'-bis(1,2,2-triphenylvinyl)biphenyl, 3,3'-bis(l,2,2-triphenylvinyl)biphenyl and 3,4'-bis(1,2,2-triphenylvinyl)biphenyl (oTPE-mTPE, oTPE-pTPE, mTPE-mTPE, and mTPE-pTPE, respectively), are successfully synthesized and their thermal, optical, and electronic properties fully investigated. By merging two simple tetraphenyiethene (TPE) units together through different linking positions, the π-conjugation length is effectively controlled to ensure the deep-blue emission. Because of the minor but intelligent structural modification, all the four fluorophores exhibit deep-blue emissions from 435 to 459 nm with Commission Internationale de I'Eclairage (CIE) chromaticity coordinates of, respectively, (0.16,0.14), (0.15,0.11), (0.16,0.14), and (0.16,0.16), when fabricated as emitters in organic light-emitting diodes (OLEDs). This is completely different from BTPE with sky-blue emission (0.20,0.36). Thus, these results may provide a novel and versatile approach for the design of deep-blue aggregation-induced emission (AIE) luminogens.
机译：四种4,4'-双（1,2,2-三苯基乙烯基）联苯（BTPE）衍生物，4,4'-双（1,2,2-三苯基乙烯基）联苯，2,3-双（1,2,2） -三苯乙炔基）联苯，2,4'-双（1,2,2-三苯乙烯基）联苯，3,3'-双（1,2,2-三苯乙烯基）联苯和3,4'-双（1,2，已成功合成了2-三苯基乙烯基）联苯（分别为oTPE-mTPE，oTPE-pTPE，mTPE-mTPE和mTPE-pTPE），并对其热，光学和电子性质进行了充分研究。通过将两个简单的四苯乙撑（TPE）单元通过不同的连接位置合并在一起，可以有效地控制π共轭长度，以确保发出深蓝色光。由于进行了微小但智能的结构修改，所有四个荧光团在435至459 nm处均显示深蓝色发射，并且国际照明委员会（CIE）色度坐标分别为（0.16,0.14），（0.15,0.11） （0.16,0.14）和（0.16,0.16）制成有机发光二极管（OLED）中的发射器时。这与发射天蓝色（0.20,0.36）的BTPE完全不同。因此，这些结果可能为设计深蓝色聚集诱导发射（AIE）发光剂提供新颖而通用的方法。

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  • 来源
    《Advanced Functional Materials》 |2013年第18期|2329-2337|共9页
  • 作者

    Jing Huang; Ning Sun; Yongqiang Dong; Runli Tang; Ping Lu; Ping Cai; Qianqian Li; Dongge Ma; Jingui Qin; Zhen Li;

  • 作者单位

    Department of Chemistry Wuhan University Wuhan 430072, China;

    Institute of Applied Chemistry The Chinese Academy of Sciences Changchun 130022, China;

    Department of Chemistry Beijing Normal University Beijing 100875, China;

    Department of Chemistry Wuhan University Wuhan 430072, China;

    Department of Chemistry Jilin University, Jilin 130022, China;

    Department of Chemistry Wuhan University Wuhan 430072, China;

    Department of Chemistry Wuhan University Wuhan 430072, China;

    Institute of Applied Chemistry The Chinese Academy of Sciences Changchun 130022, China;

    Department of Chemistry Wuhan University Wuhan 430072, China;

    Department of Chemistry Wuhan University Wuhan 430072, China;

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