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
收藏
页码：167 / 172
页数：6
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