Improving organic light-emitting diode performance with patterned structures

被引：13
|
作者：
Fina, Michael [1 ]
Liu, Deang [1 ]
Ren, Li [1 ]
Mao, Samuel S. [1 ]
机构：
[1] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2011年 / 105卷 / 02期
基金：
美国国家科学基金会;
关键词：
DEPOSITION; EFFICIENCY; INJECTION;
D O I：
10.1007/s00339-011-6616-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence nano- and micro- structures on light extraction and carrier injection characteristics in organic light-emitting diodes (OLEDs) is examined. The results demonstrate device enhancement from two distinctive patterning scales: embedded microstructure arrays for improved light extraction and imprinted nanostructures for carrier injection enhancement. Further, based on these results, a two-level imprinting stamp is designed which simultaneously produces a micron-sized pattern for facilitating light extraction and a nanometer-sized pattern to improve carrier injection. Additionally, this scalable patterning technology circumvents imprinting misalignment while preserving its compatibility with rollto- roll technology.
引用
收藏
页码：323 / 327
页数：5
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