Indenofluorene-Based Blue Fluorescent Compounds and Their Application in Highly Efficient Organic Light-Emitting Diodes
作者:Kum Hee Lee、Seul Ong Kim、Sunwoo Kang、Jin Yong Lee、Kyoung Soo Yook、Jun Yeob Lee、Seung Soo Yoon
DOI:10.1002/ejoc.201200117
日期:2012.5
fluoren-7-ylethenyl)-6,6,12,12-tetraethylindeno[1,2-b]fluorene (3) as blue dopant showed a luminous efficiency of 12.2 cd A–1, a power efficiency of 6.08 lm W–1, and an external quantum efficiency of 7.84 % at 20 mA cm–1 with CIE (Commission Internationale d'Enclairage) (x, y) coordinates of (0.148, 0.241) at 8.5 V. A deep-blue OLED with CIE (x, y) coordinates of (0.153, 0.128) doped with 2-(3,5-d
基于茚并芴衍生物结合(二苯基氨基)芳基乙烯基和二叔丁基苯基封闭单元的蓝色荧光化合物已通过 Suzuki 偶联和 Horner-Wadsworth-Emmons 反应合成。检查了它们在多层 OLED 中的电致发光;器件的结构为 ITO/DNTPD/NPB/MADN:蓝色掺杂剂/Alq3/LiF/Al。含有 7% 2-(3,5-di-tert-butylphenyl)-8-(9,9-diethyl-2-(diphenylamino)fluoren-7-ylethenyl)-6,6,12,12-tetraethylindeno[ 1,2-b]芴 (3) 作为蓝色掺杂剂的发光效率为 12.2 cd A-1,功率效率为 6.08 lm W-1,在 20 mA cm-1 下使用 CIE 的外量子效率为 7.84 % (Commission Internationale d'Enclairage) (x