Efficient doped red light-emitting electrochemical cells based on cationic iridium complexes

被引：13

作者：

Hu, Tao ^{[1
]}

Duan, Lian ^{[1
]}

Qiao, Juan ^{[1
]}

He, Lei ^{[1
]}

Zhang, Deqiang ^{[1
]}

Wang, Liduo ^{[1
]}

Qiu, Yong ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem, Minist Educ, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China

来源：

SYNTHETIC METALS | 2013年 / 163卷

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Red-emitting LECs; Host-guest; Efficient; Cationic iridium complexes; ELECTROLUMINESCENT DEVICES; BLUE-GREEN;

D O I：

10.1016/j.synthmet.2012.12.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We demonstrate an efficient red emitting host-guest LEC based on cationic iridium complexes. The host-guest LEC has brightness of 8.4 cd m(-2), external quantum efficiency (EQE) of up to 3.5% and peak current efficiency of 3.4 cd A(-1), the highest efficiencies reported to date for red-emitting host-guest LECs based on cationic iridium complexes. It is confirmed that dispersing the guest molecules into the host matrix would greatly inhibit the self-quenching of the guest molecules in the emissive layer and thus improving the device efficiency, and offering an effective approach to improve device efficiencies of LECs. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：33 / 37

页数：5

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