Tandem organic light-emitting diodes with KBH4 doped 9,10-bis(3-(pyridin-3-yl)phenyl)anthracene connected to the charge generation layer

被引：26

作者：

Duan, Lian ^{[1
]}

Tsuboi, Taiju ^{[2
]}

Qiu, Yong ^{[1
]}

Li, Yanrui ^{[3
]}

Zhang, Guohui ^{[3
]}

机构：

[1] Tsinghua Univ, Dept Chem, Minist Educ, Key Lab Organ Optoelect & Mol Engn, Beijing 100084, Peoples R China

[2] Kyoto Sangyo Univ, Fac Engn, Kyoto 6038555, Japan

[3] Visionox Tech Ltd, R&D Ctr, Beijing 100085, Peoples R China

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 13期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

COUPLING-OUT EFFICIENCY; HIGHLY EFFICIENT; DEVICES; ELECTRON; PERFORMANCE; MOBILITY; HOST;

D O I：

10.1364/OE.20.014564

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Tandem organic light emitting diodes (OLEDs) are ideal for lighting applications due to their low working current density at high brightness. In this work, we have studied an efficient electron transporting layer of KBH4 doped 9,10-bis(3-(pyridin-3-yl)phenyl)anthracene (DPyPA) which is located adjacent to charge generation layer of MoO3/NPB. The excellent transporting property of the DPyPA: KBH4 layer helps the tandem OLED to achieve a lower voltage than the tandem device with the widely used tris-(8-hydroxyquinoline)aluminum:Li. For the tandem white OLED with a fluorescent blue unit and a phosphorescent yellow unit, we've achieved a high current efficiency of 75 cd/A, which can be further improved to 120 cd/A by attaching a diffuser layer. (C)2012 Optical Society of America

引用

收藏

页码：14564 / 14572

页数：9

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