2-Diphenylaminofluoren-7-ylstyrene Derivatives with Various Aromatic End-Capping Groups for Highly Efficient Blue and White Organic Light-Emitting Diodes
作者:Kum Hee Lee、Chang Seok Son、Jin Yong Lee、Sunwoo Kang、Kyoung Soo Yook、Soon Ok Jeon、Jun Yeob Lee、Seung Soo Yoon
DOI:10.1002/ejoc.201100472
日期:2011.7.11
Highly efficient blue fluorescent materials with a 2-diphenylaminofluoren-7-ylstyrene emitting unit and various aromatic end-capping groups were synthesized and characterized. A 2-methyl-9,10-bis(2-naphthyl)anthracene host was doped with these blue materials as the blue dopants in the emitting layer of organic light-emitting diode (OLED) devices. All devices exhibited highly efficient blue electroluminescence
合成并表征了具有 2-二苯基氨基芴-7-基苯乙烯发光单元和各种芳族封端基团的高效蓝色荧光材料。2-甲基-9,10-双(2-萘基)蒽主体掺杂有这些蓝色材料,作为有机发光二极管(OLED)器件发光层中的蓝色掺杂剂。所有器件都表现出高效的蓝色电致发光和高外部量子效率(20 mA cm-2 时为 4.38-6.2 %)。特别是,使用 7-[3,5-bis(naphthalen-1-yl)styryl]-9,9-diethyl-2-N,N-diphenylamino-9H-芴 (1f) 和 7- 4-[1'-(2',3',4',5'-四苯基)苯基]苯乙烯基}-9,9-二乙基-2-N,N-二苯基氨基-9H-芴(1g)作为掺杂剂在发光层在 20 mA cm-2 下显示出 4.63 % 和 5.96 % 的高外量子效率,颜色坐标为 (0.148, 0. 134) 和 (0.147, 0.144),分别。使用