Synthesis of an electroluminescent polymer and its non-doped light-emitting diodes with stable green emission

被引:3
作者
Liu, Yingliang [1 ,2 ]
Cao, Huayu [2 ]
Li, Jianghui [1 ]
Chen, Zhijian [2 ]
Xiao, Lixin [2 ]
Gong, Qihuang [2 ]
Cao, Shaokui [1 ]
机构
[1] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450052, Peoples R China
[2] Peking Univ, Dept Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
基金
中国国家自然科学基金;
关键词
electroluminescence; polymer light-emitting diode; non-doped;
D O I
10.1002/pat.1212
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
An electroluminescent polymer was synthesized by Wittig condensation and characterized by the measurements of H-1-NMR, IR, gel permeation chromatography (GPC), UV-Vis, PL, and cyclic voltammetry (CV). The polymer can be dissolved in common organic solvents such as tetrahydrofuran (THF), chloroform, and dichloromethane. The electroluminescent investigation showed that the non-doped devices with a double-layer configuration (ITO/PEDOT:PSS/Polymer/Mg:Ag) have a stable green emission property. The maximum luminance of the annealed device reaches 2317 cd/m(2). The emission maximum and the CIE 1931 coordinate values are respectively stabilized at 552 nm and near (x, y) =(0.43, 0.55) with different voltages. Copyright (C) 2008 John Wiley & Sons, Ltd.
引用
收藏
页码:1839 / 1843
页数:5
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