新型红光电磷光芴-alt-咔唑共聚物的合成与发光性能  

Synthesis and Light-Emitting Properties of Novel Red Electrophosphorescent Fluorene-alt-Carbazole Copolymers

作　　者：应磊[1] 陈钊[1] 蒋加兴[1] 管榕[1] 杨伟[1] 曹镛[1] 

机构地区：[1]华南理工大学高分子光电材料与器件研究所教育部特种功能材料重点实验室,广州510640

出　　处：《高等学校化学学报》2009年第2期403-407,共5页Chemical Journal of Chinese Universities

基　　金：国家"九七三"计划(批准号:2009CB623602);国家自然科学基金(批准号:20574021;U0634003)资助

摘　　要：通过Suzuki聚合反应合成了一系列以芴-alt-咔唑为主链,铱配合物为侧链的深红色电磷光共轭聚合物.发光器件结构为ITO/PEDOT∶PSS/PVK/Copolymer/Ba/Al,基于共聚物PFCzIrNiq-1的器件在电流密度为9.4mA/cm2时,最大外量子效率为0.23%,最大发射波长为680nm.A novel monomer derived from dibromocarbazole with N-grafted with Ir complex by a long alkyl side chain was synthesized. Based on this new monomer, a series of poly （fluorene-ah-carbazole） s which tethered red light-emitting Ir complex as emitting center were synthesized with Suzuki polycondensation. The polymer light-emitting diodes with structure of ITO/PEDOT： PSS/PVK/Copolymer/Ba/Al were prepared based on the resulted copolymers. The copolymer PFCzIrNiq-1 exhibits maximal quantum efficiency of 0. 23% at 9.4 mA/cm^2. The peak emission of the resulted copolymers was at 680 nm, which was among the reported deepest iridium containing red-light-emitting electrophosphorescent polymers.

关 键 词：芴 咔唑 铱配合物 共聚物 红光发射 

分 类 号：O632[理学—高分子化学]