Reduced efficiency roll-off in phosphorescent organic light emitting diodes at ultrahigh current densities by suppression of triplet-polaron quenching

	Reduced efficiency roll-off in phosphorescent organic light emitting diodes at ultrahigh current densities by suppression of triplet-polaron quenching
其他题名	论文其他题名
	Zang F. X.; Sum T. C.; Huan A. C. H.; Li T. L.; Li W. L.; Zhu F. R.
	2008
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	93 期号:2
摘要	High-performance phosphorescent organic light emitting devices with reduced efficiency roll-off at ultrahigh current densities were realized. The devices were Ir(ppy)(3)-based phosphorescent organic light emitting diodes that employed 1,3-bis[2-(2,2(')-bipyridine-6-yl)-1,3,4-oxadiazo-5-yl]benzene as a high mobility electron transfer layer. The device's brightness was enhanced while the efficiency roll-off was reduced. The device exhibits high current efficiency (21 cd/A) at high brightness (80 000 cd/m(2)), with a maximum luminescence of 136 000 cd/m(2) at over 1 A/m(2) (with an efficiency of 13 cd/A). This reduction in efficiency roll-off is attributed to the suppression of the triplet-polaron quenching rate through balancing the charge carrier ratio in the device. (C) 2008 American Institute of Physics.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26465
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zang F. X.,Sum T. C.,Huan A. C. H.,et al. Reduced efficiency roll-off in phosphorescent organic light emitting diodes at ultrahigh current densities by suppression of triplet-polaron quenching[J]. Applied Physics Letters,2008,93(2).
APA	Zang F. X.,Sum T. C.,Huan A. C. H.,Li T. L.,Li W. L.,&Zhu F. R..(2008).Reduced efficiency roll-off in phosphorescent organic light emitting diodes at ultrahigh current densities by suppression of triplet-polaron quenching.Applied Physics Letters,93(2).
MLA	Zang F. X.,et al."Reduced efficiency roll-off in phosphorescent organic light emitting diodes at ultrahigh current densities by suppression of triplet-polaron quenching".Applied Physics Letters 93.2(2008).

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