Highly simplified phosphorescent organic light emitting diode with >20% external quantum efficiency at >10,000 cd/m2

被引：102

作者：

Wang, Z. B. ^{[1
]}

Helander, M. G. ^{[1
]}

Qiu, J. ^{[1
]}

Puzzo, D. P. ^{[1
]}

Greiner, M. T. ^{[1
]}

Liu, Z. W. ^{[2
]}

Lu, Z. H. ^{[1
,3
]}

机构：

[1] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 3E4, Canada

[2] Univ So Calif, Dept Chem, Los Angeles, CA 90089 USA

[3] Yunnan Univ, Dept Phys, Kunming 650091, Yunnan, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

TRIPLET-TRIPLET ANNIHILATION; DEVICES; ELECTROLUMINESCENCE; EMISSION; VOLTAGE; LAYERS;

D O I：

10.1063/1.3532844

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A simplified trilayer green phosphorescent organic light emitting diode with high efficiency and an ultralow efficiency roll-off has been demonstrated. In particular, the external quantum efficiency drops <1% from 100 to 5,000 cd/m(2) and remains as high as similar to 21.9% at 10,000 cd/m(2). The power efficiency is also significantly improved, reaching 78.0 lm/W at 100 cd/m(2), 50.5 lm/W at 5,000 cd/m(2), and 42.8 lm/W at 10,000 cd/m(2). The working mechanism of this simple device structure with an unprecedented high efficiency is also discussed. (C) 2011 American Institute of Physics. [doi:10.1063/1.3532844]

引用

页数：3

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Highly simplified phosphorescent organic light emitting diode with &gt;20% external quantum efficiency at &gt;10,000 cd/m2

Highly simplified phosphorescent organic light emitting diode with >20% external quantum efficiency at >10,000 cd/m2