Influence of molecular structure on the properties of dendrimer light-emitting diodes

被引：43

作者：

Anthopoulos, TD

Markham, JPJ

Namdas, EB

Lawrence, JR

Samuel, IDW

Lo, SC

Burn, PL ^{[1
]}

机构：

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

[2] Univ Oxford, Dyson Perrins Lab, Oxford OX1 3QY, England

来源：

ORGANIC ELECTRONICS | 2003年 / 4卷 / 2-3期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/j.orgel.2003.08.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Iridium-based phosphorescent dendrimers have shown much promise as highly efficient light emitting materials for organic light emitting diodes (OLEDs). Here we report the effects of modifying the chemical structure on the emissive and charge transport properties of Ir(ppy)3 based electrophosphorescent dendrimers. We investigate a novel para linked first generation (G1) iridium dendrimer. This material is compared to G1 and G2 meta linked dendrimers. We show that by blending these dendrimers into a CBP host, high external quantum efficiencies of over 10% and luminous efficiencies of 27 1m/W can be achieved. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：71 / 76

页数：6

共 27 条

[1] Nearly 100% internal phosphorescence efficiency in an organic light-emitting device [J].