Synergistic effect between electroactive tetraphenyl-<i>p</i>-phenylenediamine and AIE-active tetraphenylethylene for highly integrated electrochromic/electrofluorochromic performances
作者:Ningwei Sun、Kaixin Su、Ziwei Zhou、Xuzhou Tian、Daming Wang、Nicole Vilbrandt、Andreas Fery、Franziska Lissel、Xiaogang Zhao、Chunhai Chen
DOI:10.1039/c9tc02001b
日期:——
response speed and inferior long-term cycling stability. Based on a rational design strategy by combining a highly conjugated tetraphenyl-p-phenylenediamine (TPPA) unit and an aggregation induced emission (AIE)-active tetraphenylethylene (TPE) unit, we synthesized a novel diamine “N,N′-bis(4-aminophenyl)-N,N′-di(4-(1,2,2-triphenylethenyl)phenyl)-1,4-phenylenediamine” to construct an electro- and AIE-active
可切换的荧光材料因其在传感器,存储设备和显示器中的应用前景而备受关注。但是,低荧光对比度,适度的响应速度和较差的长期循环稳定性阻碍了进一步的发展。基于通过组合高度共轭四苯基合理设计策略p苯二胺(TPPA)单元和聚合诱导发光(AIE)-active四苯基(TPE)单元,我们合成了新的二胺“ Ñ,Ñ ' -双(4- -氨基苯基)-N,N′-二(4-(1,2,2-三苯基乙烯基)苯基)-1,4-苯二胺”,以构建具有电活性和AIE活性的聚合物。除了高效的固态荧光和极稳定的氧化还原特性外,所得的聚合物TPE-TPPA-PA还实现了高度集成的发射/颜色双重可切换特性,包括多级变色,高荧光开/关对比度,直至252,令人印象深刻的快速响应速度(EC为1.3 / 0.5 s,EFC过程为0.7 / 2.1 s)和超过10000 s的出色循环稳定性。稳定的电活性TPPA和AIE活性TPE之间的协同效应可能为进一