Journal
ADVANCED OPTICAL MATERIALS
Volume 3, Issue 3, Pages 390-397Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.201400341
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Funding
- National Science Foundation [CHE-0748867]
- Universal Display Corporation
- [DOE-EE0005075]
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In order to develop organic light-emitting diodes with improved optical properties, a series of phosphorescent complexes exhibiting narrow-band emission spectra are prepared and color tuned to emit efficiently across the whole visible spectrum through a judicious molecular design. Devices employing a green narrow-band phosphorescent emitter are fabricated and demonstrate an internal quantum efficiency of close to unity and impressive device operational lifetimes, estimate at over 70 000 h at a practical luminance of 100 cd m(-2). Additionally, a deep blue narrow-band emitter is incorporated into a device setting that demonstrates a peak external quantum efficiency of 17.6% and CIE coordinates of (0.14, 0.09).
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