Highly efficient solution-processable europium-complex based organic light-emitting diodes

被引：42

作者：

Zhang, Shuyu ^{[1
]}

Turnbull, Graham A. ^{[1
]}

Samuel, Ifor D. W. ^{[1
]}

机构：

[1] Univ St Andrews, Sch Phys & Astron, SUPA, Organ Semicond Ctr, St Andrews KY16 9SS, Fife, Scotland

来源：

ORGANIC ELECTRONICS | 2012年 / 13卷 / 12期

基金：

英国工程与自然科学研究理事会;

关键词：

OLED; Phosphorescence; Europium-complex; BETA-DIKETONATE COMPLEX; ELECTROLUMINESCENT DEVICES; RED ELECTROLUMINESCENCE; CONJUGATED POLYMERS; FLUORESCENT DYE; LAYER; PERFORMANCE; LIGAND; EMISSION; ANODE;

D O I：

10.1016/j.orgel.2012.09.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The development of solution-processable europium-complex based organic light-emitting diodes (OLED) has been limited by their low efficiency. In this paper, we show that it is possible to produce a highly efficient, solution-processable, europium-complex based OLED with an external quantum efficiency of 4.3% at a brightness of 100 Cd/m(2) using off-the-shelf materials and without any specific optical design for improved light extraction. This is achieved by optimizing the device structure and the host matrix used. To our knowledge, this is the highest efficiency reported for solution-processable europium-complex based OLED devices, and the efficiency roll-off has been reduced compared with other reported europium-complex based devices. Our approach should be applicable to a wide range of solution-processable lanthanide complexes. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：3091 / 3096

页数：6

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