Synthesis, aggregation-induced emission (AIE) and electroluminescence of carbazole-benzoyl substituted tetraphenylethylene derivatives
作者:Yingying Zhan、Zhiwen Yang、Jihua Tan、Zhipeng Qiu、Yuanyou Mao、Jia He、Qingdan Yang、Shaomin Ji、Ning Cai、Yanping Huo
DOI:10.1016/j.dyepig.2019.107898
日期:2020.2
display. Here in this work, three new types of D-π-A-π-D AIE luminogens based on carbazole-benzoyl substituted tetraphenylethylene (TPE) derivatives were designed and successfully synthesized. Meanwhile, their photophysical properties as well as electroluminescence (EL) characteristics were studied. These luminogens show good AIE property with high solid-state fluorescence quantum yields. Furthermore
聚集诱导发射(AIE)材料提供了一种在固态状态下获得高荧光效率的解决方案,这是光电器件和显示器所需要的。在这项工作中,设计并成功合成了三种基于咔唑-苯甲酰基取代的四苯基乙烯(TPE)衍生物的新型D-π-A-π-DAIE发光剂。同时,研究了它们的光物理性质以及电致发光(EL)特性。这些发光剂显示出良好的AIE特性,并具有较高的固态荧光量子产率。此外,溶液和固态中这三种发光剂的发射波长通过增加供体基团的数量而显示出可忽略不计的变化。所有三种发光剂在不同的溶剂中均表现出溶剂致变色作用和负的溶剂动力学特性。更有趣的是,随着供体基团数量的增加,它们的热和形态稳定性会通过增加咔唑-苯甲酰基的数量而呈现规律的变化。基于OLED的非掺杂OLED器件的性能。TPE-3BZ-Cz优于其他两种发光剂,这已通过进一步的电致发光评估得到证明。