Highly efficient and stable organic light-emitting diodes

被引:83
作者
Vestweber, H [1 ]
Riess, W [1 ]
机构
[1] IBM Corp, Div Res, Zurich Res Lab, CH-8803 Ruschlikon, Switzerland
关键词
light-emitting diodes; efficiency; stability;
D O I
10.1016/S0379-6779(97)04014-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Doped and undoped multilayer organic light-emitting diodes containing copper phthalocyanine as the hole-injection layer, aromatic diamines as the hole-transport layers and (tris(8-hydroxy-quinoline)aluminum) as the electron-injection, electron-transport, and emitting layer were fabricated. The influence of the individual layer thicknesses and doping locations (electron-transport layer and/or hole-transport layer) on the current-voltage characteristics, luminous efficiency, and stability was investigated. Optimization of these parameters led to highly efficient(above 81m/W) and stable organic light-emitting diodes. (C) 1997 Published by Elsevier Science S.A.
引用
收藏
页码:181 / 185
页数:5
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