Low-haze light extraction from organic light-emitting diode lighting with auxiliary electrode by selective microlens arrays

被引：11

作者：

Hwang, Ju Hyun ^{[1
]}

Park, Tae Hyun ^{[1
]}

Lee, Hyun Jun ^{[1
]}

Choi, Kyung Bok ^{[1
]}

Park, Young Wook ^{[2
]}

Ju, Byeong-Kwon ^{[1
]}

机构：

[1] Korea Univ, Coll Engn, Display & Nanosyst Lab, Seoul 136713, South Korea

[2] Korea Univ, Inst High Technol Mat & Devices, Seoul 136713, South Korea

来源：

OPTICS LETTERS | 2013年 / 38卷 / 20期

基金：

新加坡国家研究基金会;

关键词：

EFFICIENCY; DEVICES;

D O I：

10.1364/OL.38.004182

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Improved out-coupling efficiency and low haze of organic light-emitting diode (OLED) lighting with an auxiliary electrode are demonstrated by selective microlens arrays (SMLAs). The microlens arrays, aligned with the auxiliary electrode, were selectively fabricated, since the fully packed microlens arrays lead to OLED lighting with high haze. The external quantum efficiency and power efficiency of the devices with the SMLAs increased by 32% when compared with the devices without these arrays. Using the SMLAs, dark grid lines in the emission region became brighter, with a low haze, and the spectra of the emitted light had no shift. (C) 2013 Optical Society of America

引用

页码：4182 / 4185

页数：4

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