CONTROL OF SPONTANEOUS EMISSION USING MICROCAVITY STRUCTURES IN ORGANIC ELECTROLUMINESCENT DEVICES

被引:7
作者
TSUTSUI, T
TAKADA, N
SAITO, S
机构
[1] Department of Materials Science and Technology, Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka
关键词
D O I
10.1016/0379-6779(94)03138-V
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The method for controlling of spontaneous emission in organic thin-film electroluminescent devices by introducing optical microcavity structures is described. An optical microcavity structure was introduced into organic three-layer electroluminescent (EL) devices with an europium complex as an emission layer. The device structure consisted of a dielectric reflector composed of SiO2/TiO2 bilayers, an indium-tin-oxide electrode, a hole transport layer, a europium complex as an emission layer, an electron transport layer and a MgAg electrode. The dielectric reflector and the MgAg metal electrode constituted a planer microcavity. Sharply directed emission from the europium complex was observed when operated under de drive voltage.
引用
收藏
页码:2001 / 2004
页数:4
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