Solution-processable carbazole-based host materials for phosphorescent organic light-emitting devices
作者:Naoya Aizawa、Yong-Jin Pu、Hisahiro Sasabe、Junji Kido
DOI:10.1016/j.orgel.2012.06.036
日期:2012.11
carbazole-type host materials, 1,3-bis(3-(3,6-di-n-butylcarbazol-9-yl)phenyl)benzene (BCzPPh) and 4,6-bis(3-(3,6-di-n-butylcarbazol-9-yl)phenyl)pyrimidine (BCzPPm), were synthesized for use in phosphorescent organic light-emitting devices (OLEDs). Both host materials possess a high solubility in common organic solvents and high triplet energy to confine excitons to the phosphorescent emitter. The two
在这项研究中,可溶液加工的咔唑类主体材料,1,3-双(3-(3,6-二-正丁基咔唑-9-基)苯基)苯(BCzPPh)和4,6-双(3合成了-(3,6-二-正丁基咔唑-9-基)苯基)嘧啶(BCzPPm),用于磷光有机发光器件(OLED)。两种基质材料都具有在普通有机溶剂中的高溶解度和高三重态能量,以将激子限制在磷光发射体中。BCzPPm的中央嘧啶环中的两个氮原子对光致发光性能和电子接受能力产生深远影响。掺杂绿色磷光发射体三(2-(4-甲苯基)苯基吡啶)铱(III)时,BCzPPh 在一个简单的双层OLED中,它们分别表现出高于30 lm / W和13%的功率效率和外部量子效率。