Synthesis, Properties and Applications of Biphenyl Functionalized 9,9-Bis(4-diphenylaminophenyl)fluorenes as Bifunctional Materials for Organic Electroluminescent Devices
作者:A-monrat Thangthong、Narid Prachumrak、Supawadee Namuangruk、Siriporn Jungsuttiwong、Tinnagon Keawin、Taweesak Sudyoadsuk、Vinich Promarak
DOI:10.1002/ejoc.201200641
日期:2012.9
emission in both solution and in the solid state, and were thermally stable amorphous materials with glass transition temperatures up to 207 °C. The abilities of these materials to act as blue-light-emitting materials for blue OLEDs and hole-transporting materials for green OLEDs in terms of device performance and thermal properties were superior to commonly used N,N′-diphenyl-N,N′-bis(1-naphthyl)-(1
合成并表征了以9,9-双(4-二苯基氨基苯基)芴为分子平台、联苯衍生物为封端取代基的四种新型双功能材料BPTF、CBPTF、CMBPTF和BPVTF。他们优化的结构表明,芴环 C-9 位置的两个三苯胺部分都产生了庞大的分子结构。这些分子在溶液和固态中都显示出强烈的蓝色发射,并且是热稳定的无定形材料,玻璃化转变温度高达 207 °C。这些材料作为蓝色 OLED 的蓝光发光材料和绿色 OLED 的空穴传输材料在器件性能和热性能方面的能力优于常用的 N,N'-二苯基-N,N'-双(1-萘基)-(1,1'-联苯)-4,4'-二胺(NPB)。高效、明亮的非掺杂深蓝色和基于 Alq3 的绿色 OLED 具有最大亮度效率和 CIE 坐标为 2.48 cd A-1 和 x = 0.15 和 y = 0.07,以及 4.40 cd A-1 和 x = 0.28 和 y = 0.52分别使用具有两个联苯取代基作为活性层的