Special Section on Organic Light-Emitting Materials and Devices

High-performance phosphorescent white-stacked organic light-emitting devices for solid-state lighting

[+] Author Affiliations
Vadim I. Adamovich, Peter A. Levermore, Xin Xu, Alexey B. Dyatkin, Zeinab Elshenawy, Michael S. Weaver, Julie J. Brown

Universal Display Corporation, 375 Phillips Boulevard, Ewing, New Jersey 08618

J. Photon. Energy. 2(1), 021202 (Mar 12, 2012). doi:10.1117/1.JPE.2.021202
History: Received September 2, 2011; Revised October 26, 2011; Accepted November 1, 2011
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Abstract.  In this work we report exceptional efficacy, lifetime and color stability for all-phosphorescent white stacked organic light-emitting devices (SOLED®s). We report data for all-phosphorescent white SOLED pixels with two emissive units connected in series by a charge generation layer (CGL). At 3,000cd/m2, efficacy=54 to 56lm/W and lifetime to 70% of initial luminance LT7020,000h, with color rendering index (CRI) = 82 to 83 and chromaticity meeting Energy Star criteria. We further report data for a 15cm×15cm white SOLED panel that operates at 3,000cd/m2 with 48lm/W efficacy, CRI=86 and chromaticity meeting Energy Star criteria. The panel has extremely low operating temperature that is only 6.4°C above ambient, and exceptional lifetime of LT7013,000h when operated at 3,000cd/m2.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Vadim I. Adamovich ; Peter A. Levermore ; Xin Xu ; Alexey B. Dyatkin ; Zeinab Elshenawy, et al.
"High-performance phosphorescent white-stacked organic light-emitting devices for solid-state lighting", J. Photon. Energy. 2(1), 021202 (Mar 12, 2012). ; http://dx.doi.org/10.1117/1.JPE.2.021202


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