12 March 2012 High-performance phosphorescent white-stacked organic light-emitting devices for solid-state lighting
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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 3,000  cd/m2, efficacy = 54 to 56  lm/W and lifetime to 70% of initial luminance LT70 ≈ 20,000  h, with color rendering index (CRI) = 82 to 83 and chromaticity meeting Energy Star criteria. We further report data for a 15  cm×15  cm white SOLED panel that operates at 3,000  cd/m2 with 48  lm/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 LT70 ≈ 13,000  h when operated at 3,000  cd/m2.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Vadim I. Adamovich, Vadim I. Adamovich, Peter A. Levermore, Peter A. Levermore, Xin Xu, Xin Xu, Alexey B. Dyatkin, Alexey B. Dyatkin, Zeinab Elshenawy, Zeinab Elshenawy, Michael S. Weaver, Michael S. Weaver, Julie J. Brown, Julie J. Brown, } "High-performance phosphorescent white-stacked organic light-emitting devices for solid-state lighting," Journal of Photonics for Energy 2(1), 021202 (12 March 2012). https://doi.org/10.1117/1.JPE.2.021202 . Submission:
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