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45.3: Efficient Phosphorescent OLEDs for Warm White And Cool White Lighting Applications
Author(s) -
Xu Xin,
Adamovich Vadim,
Ma Bin,
DeAngelis Alan,
Xia Sean,
Weaver Michael S.,
Brown Julie J.
Publication year - 2012
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2012.tb05856.x
Subject(s) - phosphorescence , phosphorescent organic light emitting diode , oled , white dwarf , white (mutation) , white light , materials science , optoelectronics , physics , optics , astrophysics , chemistry , nanotechnology , fluorescence , stars , biochemistry , layer (electronics) , gene
We present an all‐phosphorescent warm white OLED pixel with a high efficacy of 63 lm/W and an extended lifetime to LT70=10,000 hours at 3000 cd/m 2 . This device has an Energy Star white color with CIE 1931 (x, y) = (0.469, 0.428), CCT=2703K and a high CRI=89. We also present a PHOLED pixel for potential cooler white lighting applications with CIE 1931 (x, y)=(0.352, 0.369), and CCT=4809K. At 1000 cd/m 2 the power efficacy=57 lm/W.