Phosphorescent organic light-emitting diodes for high-efficacy long-lifetime solid-state lighting

被引：12

作者：

Levermore, Peter A. ^{[1
]}

Dyatkin, Alexey B. ^{[1
]}

Elshenawy, Zeinab ^{[1
]}

Pang, Huiqing ^{[1
]}

Silvernail, Jeffrey ^{[1
]}

Krall, Emory ^{[1
]}

Kwong, Raymond C. ^{[1
]}

Ma, Ruiqing ^{[1
]}

Weaver, Michael S. ^{[1
]}

Brown, Julie J. ^{[1
]}

Qi, Xiangfei ^{[2
]}

Forrest, Stephen R. ^{[2
]}

机构：

[1] Universal Display Corp, Ewing, NJ 08618 USA

[2] Univ Michigan, Randall Lab, Dept Phys, Ann Arbor, MI 48109 USA

来源：

JOURNAL OF PHOTONICS FOR ENERGY | 2012年 / 2卷

关键词：

organic light-emitting diodes; phosphorescent; phosphorescent organic light-emitting diodes; solid-state lighting; low temperature; DEVICES;

D O I：

10.1117/1.JPE.2.021205

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report data for a pair of singlestack all-phosphorescent 15 x 15 cm(2) organic light emitting-diode (OLED) light panels with high efficacy, long lifetime, and very low operating temperature: Panel 1 has 62 lm/W efficacy, CRI = 81 and lifetime to LT70 = 18,000 h at 1000 cd/m(2), while Panel 2 has 58 lm/W efficacy, CRI = 82 and lifetime to LT70 = 30,000 h at 1000 cd/m(2). Operating at a higher luminance of 3000 cd/m(2), Panel 2 has 49 lm/W efficacy with lifetime to LT70 = 4000 h. Excellent panel lifetime is enabled by a stable light blue phosphorescent materials system. Panel temperatures are within 10 degrees C of ambient temperature at 3000 cd/m(2). Panel 2 was further used as a building block to demonstrate an all-phosphorescent OLED luminaire for under-cabinet lighting applications. Operating at approximately 3000 cd/m2, the luminaire delivers 570 lm with 52 lm/W total system efficacy, CRI = 86 and CCT = 2940 K. (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.JPE.2.021205]

引用

页数：8

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