Sharply directed emission in microcavity organic light-emitting diodes with a cholesteric liquid crystal film

被引：11

作者：

Jeong, Soon Moon

Takanishi, Yoichi

Ishikawa, Ken

Nishimura, Suzushi

Suzaki, Goroh

Takezoe, Hideo

机构：

[1] Tokyo Inst Technol, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan

[2] Nippon Oil Corp, Cent Tech Res Lab, Naka Ku, Yokohama, Kanagawa 2310815, Japan

来源：

OPTICS COMMUNICATIONS | 2007年 / 273卷 / 01期

关键词：

D O I：

10.1016/j.optcom.2006.12.015

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A flexible microcavity organic light-emitting diode (OLED) was fabricated and the emitting characteristics were examined. A pair of right- and left-handed cholesteric liquid crystal (CLC) films were attached to the microcavity OLED/between aluminum (Al) and silver (Ag). Sharply directed spontaneous emission was observed from microcavity OLEDs, in which a typical luminescent material, 8-hydroxyquinoline aluminum (Alq(3)), with a broad emission spectrum was used for emitting layer. The introduction of the CLC film improved both the emission bandwidth and directionality, preserving the turn-on voltage and maximum brightness, (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：167 / 172

页数：6

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