SHARPLY DIRECTED EMISSION IN ORGANIC ELECTROLUMINESCENT DIODES WITH AN OPTICAL-MICROCAVITY STRUCTURE

被引：186

作者：

TSUTSUI, T ^{[1
]}

TAKADA, N ^{[1
]}

SAITO, S ^{[1
]}

OGINO, E ^{[1
]}

机构：

[1] NIPPON SHEET GLASS CO LTD,TSUKUBA RES LAB,TSUKUBA 30026,JAPAN

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 15期

关键词：

D O I：

10.1063/1.113043

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An optical microcavity structure was introduced into organic three-layer electroluminescent (EL) diodes with a 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 dc drive voltage. Both angular dependences of intensity of emitted light and emission spectra of the EL diodes with the microcavity were compared with those of conventional EL diodes without microcavity. (C) 1994 American Institute of Physics.

引用

页码：1868 / 1870

页数：3

共 15 条

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APPLIED PHYSICS LETTERS, 1991, 58 (23) :2598-2600

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