Hole-transporting host-polymer series consisting of triphenylamine basic structures for phosphorescent polymer light-emitting diodes
作者:Manuel W. Thesen、Bianca Höfer、Marc Debeaux、Silvia Janietz、Armin Wedel、Anna Köhler、Hans-Hermann Johannes、Hartmut Krueger
DOI:10.1002/pola.24127
日期:——
A series of novel styrene derived monomers with triphenylamine‐based units, and their polymers have been synthesized and compared with the well‐known structure of polymer of N,N′‐bis(3‐methylphenyl)‐N,N′‐diphenylbenzidine with respect to their hole‐transporting behavior in phosphorescent polymer light‐emitting diodes (PLEDs). A vinyltriphenylamine structure was selected as a basic unit, functionalized
合成了一系列具有三苯胺基单元的新型苯乙烯衍生单体及其聚合物,并将其与众所周知的N,N'-双(3-甲基苯基)-N,N的聚合物结构进行了比较'-二苯基联苯胺在磷光聚合物发光二极管(PLED)中的空穴传输行为方面。选择乙烯基三苯胺结构作为基本单元,在对位具有以下侧基的官能团:二苯胺,3-甲基苯基-苯胺,1-和2-萘胺,咔唑和吩噻嗪。该聚合物在PLED中用作以下系统配置的共混体系的主体聚合物:玻璃/铟锡氧化物/ PEDOT:PSS /聚合物共混物/ CsF / Ca / Ag。除空穴传输主体聚合物外,聚合物共混物还包括磷光掺杂剂[Ir(Me-ppy)3 ]和电子传输分子(2-(4-联苯)-5-(4-叔丁基)-丁基苯基)-1,3,4-恶二唑)。我们证明,对于这些共混体系而言,两种聚合物是出色的空穴传输基质材料,因为它们具有良好的整体电致发光性能和较高的玻璃化转变温度。对于咔唑取代的聚合物(T g =