White organic light-emitting diodes based on a combined electromer and monomer emission in doubly-doped polymers

被引：15
|
作者：
Meng Ling-Chuan [1 ]
Lou Zhi-Dong [1 ]
Yang Sheng-Yi [2 ,3 ]
Hou Yan-Bing [1 ]
Teng Feng [1 ]
Liu Xiao-Jun [1 ]
Li Yun-Bai [1 ]
机构：
[1] Beijing Jiaotong Univ, Inst Optoelect Technol, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
[2] Beijing Inst Technol, Ctr Micro & Nano Technol, Lab Nanophoton Mat & Technol, Beijing 100081, Peoples R China
[3] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
来源：
CHINESE PHYSICS B | 2012年 / 21卷 / 08期
基金：
中国国家自然科学基金;
关键词：
white organic light-emitting diodes; electromer emission; monomer emission; Commission Internationale de L'Eclairage (CIE); ELECTROLUMINESCENT DEVICES; EFFICIENCY; PHOSPHORESCENT; LAYER;
D O I：
10.1088/1674-1056/21/8/088504
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on white organic light-emitting diodes (WOLEDs) based on polyvinylcarbazole (PVK) doped with 1,1-bis((di-4-tolylamino)phenyl)cyclohexane (TAPC) and perylene, and investigate the luminescence mechanism of the devices. The chromaticity of light emission can be tuned by adjusting the concentration of the dopants. White light with the Commission Internationale de L'Eclairage (CIE) coordinates of (0.33, 0.34) is achieved by mixing the yellow electromer emission of TAPC and the blue monomer emission of perylene from the device ITO/PVK: TAPC: perylene (100:9:1 in wt.) (100 nm)/tris-(8-hydroxyquinoline aluminum (Alq(3)) (10 nm)/Al. The device exhibits a maximal luminance of 3727 cd/m(2) and a current efficiency of 2 cd/A.
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页数：4
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