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

页码：70 / 73

页数：4