Novel 9,9′-(1,3-phenylene)bis-9H-carbazole-containing copolymers as hole-transporting and host materials for blue phosphorescent polymer light-emitting diodes
作者:Seung Hee Yoon、Jicheol Shin、Hyun Ah Um、Tae Wan Lee、Min Ju Cho、Yong Jae Kim、Young Hoon Son、Joong Hwan Yang、Geesung Chae、Jang Hyuk Kwon、Dong Hoon Choi
DOI:10.1002/pola.27054
日期:2014.3.1
Novel photo‐crosslinkable hole‐transport and host materials incorporated into multilayer blue phosphorescent polymer light‐emitting diodes (Ph‐PLEDs) were demonstrated in this study. The oxetane‐containing copolymers, which function as hole‐transport layers (HTL), could be cured by UV irradiation in the presence of a cationic photoinitiator. The composition of the two monomers was varied to yield three
这项研究证明了将新颖的可光交联的空穴传输和主体材料结合到多层蓝色磷光聚合物发光二极管(Ph-PLED)中。充当空穴传输层(HTL)的含氧杂环丁烷共聚物可以在阳离子光引发剂存在下通过紫外线辐射进行固化。两种单体的组成发生了变化,从而产生了三种不同的空穴传输共聚物,[Poly(9,9'-(5-(((4-(7-(4-(((3-3-methyloxetan-3-yl))甲氧基)甲基)苯基)辛基-3-基)苄基)氧基)甲基)-1,3-亚苯基)双(9H-咔唑))(P(mCP-Ox)-I,-II和-III)] 。此外,单体1与苯乙烯共聚生成共聚物P(mCP-Ph)作为双[2-(4,6-二氟苯基)吡啶鎓-C 2,N](吡啶并吡啶)铱(III)(FIrpic)的主体材料,它是发蓝光的掺杂剂。所有基于mCP的共聚物均具有高达130-140°C的高玻璃化转变温度(T g)和高达3.00 eV的三重态能量。当使用氧化铟锡/聚(3