High-efficiency solution processable electrophosphorescent iridium complexes bearing polyphenylphenyl dendron ligands
作者:Chun Huang、Chang-Gua Zhen、Siew Ping Su、Zhi-Kuan Chen、Xiao Liu、De-Chun Zou、Yan-Rong Shi、Kian Ping Loh
DOI:10.1016/j.jorganchem.2008.12.009
日期:2009.4
report the synthesis and electrophosphorescent behavior of a series of novel iridium complex materials (Complexes A–F), which are composed of ligands bearing polyphenylphenyl dendron groups and acetylacetonate. Yellow to saturated red organic light-emitting diodes (OLEDs) based on these newly developed Ir complexes were fabricated through solution process by doping the complex materials into polyvinyl
我们报告了一系列新型铱络合物材料(复合物A–F)的合成和电致磷光行为,这些材料由带有聚苯苯基树枝状基团和乙酰丙酮酸盐的配体组成。通过将络合物材料掺杂到聚乙烯咔唑(PVK)/ 2-(4-联苯基)-5-(4-叔丁基)中,通过溶液法制备了基于这些新开发的Ir络合物的黄色至饱和红色有机发光二极管(OLED)。-丁基苯基)-1,3,4-恶二唑(PBD)基质。通过将额外的芳族链段(例如苯基或芴基)结合到碱性树枝状配体上或将基团上的两个苯环融合在一起,可以通过改变配体的共轭来有效地将材料的发射波长从549 nm调整到640 nm。聚苯基苯基树枝状基团。具有ITO /聚(3,4-乙撑二氧噻吩):聚(苯乙烯磺酸)(PEDOT:PSS)(50 nm)/ PVK:PBD(40%):Ir络合物(6%)(70 nm)构型的高性能器件)/ 2,9-二甲基-4,7-二苯基-1,10-菲咯啉(BCP)(12 nm)/ Alq