High-performance organic red-light-emitting device based on DCJTB and a new host material

被引：10
|
作者：
Tao, Silu [1 ]
Niu, Lianbin [2 ]
Yu, Junsheng [1 ]
Jiang, Yadong [1 ]
Zhang, Xiaohong [3 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Optoelect Informat, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
[2] Chongqing Normal Univ, Coll Phys & Informat Technol, Key Lab Opt Engn, Chongqing 400047, Peoples R China
[3] Chinese Acad Sci, Tech Inst Phys & Chem, Nanoorgan Photoelect Lab, Beijing 100080, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2010年 / 130卷 / 01期
关键词：
OLED; Red emission; ELECTROLUMINESCENT DEVICES; DIODES; DOPANT;
D O I：
10.1016/j.jlumin.2009.07.022
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An efficient red-light-emitting device using a new host material (DPF) and a red dopant (DCJTB) with a configuration of ITO/NPB (50 nm)/DCJTB:DPF (2%, 10 nm)/TPBI (30 nm)/LiF (0.5 nm)/Mg:Ag has been fabricated and investigated. The red OLED yields a brightness of 9270 cd/m(2) at 10 V. a maximum current efficiency of 4.2 cd/A and a maximum power efficiency of 3.9 lm/W. Using DPF as host material, the performance is much better than that of a prototypical Alq(3)-based device, which has a maximum efficiency of 1.9 cd/A and 0.6 lm/W. The performance is even comparable with red OLEDs using an assist dopant or a cohost emitter system. Results of this work indicate that DPF is a promising host material for red OLEDs with high efficiency and simple device structure. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：70 / 73
页数：4
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