White organic light-emitting devices based on fac tris(2-phenylpyridine) iridium sensitized 5,6,11,12-tetraphenylnap-hthacene  

作　　者：DING Gui-ying WANG Jin JIANG Wen-long WANG Jing WANG Li-zhong CHANG Xi 

机构地区：[1]College of Information Technology, Jilin Normal University, Siping 136000,China

出　　处：《Optoelectronics Letters》2008年第3期205-208,共4页光电子快报（英文版）

基　　金：the Ministry of Science and Technol- ogy of Jilin under Grant No. 20050523;the Grant for the Scien- tific Research from the educational office of Jilin (Project No.25, [2003]; 54, [2004]);the Grant from the department of Science and Technology of Siping [Project No.2005007; 2006008]

摘　　要：We have fabricated the white organic light-emitting devices （WOLEDs） based on 4,4＇ -bis（2,2 -diphenyl vinyl）-1,1＇ - biphenyl （DPVBi） and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene （rubrene）. The device structure is ITO/2T-NATA （20 nm）/NPBX （20 nm）/CBP： x%Ir（ppy）3：0.5% rubrene （8 nm）/NPBX （5 nm）/DPVBi （30 nm）/Alq（30 nm）/LiF（0.5 nm）/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris （2-phenylpyridine） iridium [Ir（ppy）3], acts as a yellow light-emitting layer, and N,N＇ -bis- （1-naphthyl）- N,N＇ -diphenyl -1, 1＇ -biphenyl-4,4＇ -diamine （NPBX） acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir （PPY）3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.

关 键 词：光散射 铱 元素有机物 磷光 

分 类 号：TN383[电子电信—物理电子学]