Solution-processed single-emitting-layer white organic light-emitting diodes based on small molecules with efficiency/CRI/color-stability trade-off

被引：37

作者：

Fu, Qiang ^{[1
,2
]}

Chen, Jiangshan ^{[1
]}

Zhang, Hongmei ^{[3
]}

Shi, Changsheng ^{[1
]}

Ma, Dongge ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Nanjing Univ Posts & Telecommun, Dept Mat Sci & Engn, Nanjing 210023, Jiangsu, Peoples R China

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 09期

基金：

中国国家自然科学基金;

关键词：

HIGHLY EFFICIENT BLUE; LOW-VOLTAGE; PHOSPHORESCENT OLEDS; QUANTUM EFFICIENCY; IRIDIUM COMPLEX; ROLL-OFF; HOST; DEVICES; EMISSION; ELECTROPHOSPHORESCENCE;

D O I：

10.1364/OE.21.011078

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

By doping blue, green and red dyes into a bipolar host system, a simple single-EML white organic light-emitting diode (WOLED) with efficiency and color-stability trade-off was achieved by solution process. The resulting WOLED shows high efficiency (i.e., 36.5 cd/A and 15.7% at 1141 cd/m(2)), reduced efficiency roll-off (i.e., critical current density j(c) is as high as 140 mA/cm(2)) and, especially, extremely stable electroluminescence spectra with a slight CIE coordinate variation of (0.404 +/- 0.004, 0.436 +/- 0.001). The superior performance of the WOLED is attributed to the effective suppression of exciton quenching and charge trapping in the bipolar EML. (C) 2013 Optical Society of America

引用

页码：11078 / 11085

页数：8

共 37 条

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