Novel cyclometalated platinum (II) complex containing carrier-transporting groups: Synthesis, luminescence and application in single dopant white PLEDs
作者:Aihui Liang、Yanhu Li、Weiguo Zhu、Yafei Wang、Fei Huang、Hongbin Wu、Yong Cao
DOI:10.1016/j.dyepig.2012.11.006
日期:2013.3
non-conjugated linkage, respectively. Their optophysical, electrochemical and electroluminescent properties were investigated. Compared to their parent platinum complex, both functionalized platinum complexes exhibited a significantly red-shifted photoluminescent profile in neat film and higher photoluminescent quantum efficiency in dichloromethane at room temperature. Furthermore, the platinum complex with
为了研究载流子传输基团对发光性能的影响,特别是对受激准分子/聚集体发射的影响,并获得具有单发光层结构的白色聚合物发光二极管中使用的单发光掺杂剂,衍生了两种新型的铂配合物由铂(II)(2-(4',6'-二氟苯基)吡啶并-N,C 2合成并表征了包含载运子的基团的')(吡啶甲酸)单元,其中三苯氨基或恶二唑-三苯基氨基官能化的单元分别通过非共轭键连接到吡啶甲酸中。研究了它们的光物理,电化学和电致发光性质。与它们的母体铂配合物相比,两种官能化的铂配合物在室温下均表现出明显的红移光致发光轮廓,在二氯甲烷中具有更高的光致发光量子效率。此外,具有恶二唑-三苯氨基双极性传输基团的铂配合物表现出更好的光致发光性能,并且作为单一掺杂剂在基于单个发光层的白色聚合物发光二极管中具有潜在的应用前景。在这种掺杂了铂的复合物的器件中,当掺杂剂浓度为4-8 wt%时,观察到更稳定的白光发射。最大发光效率为1.01 cd A