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Ultrabright fluorescent OLEDS using triplet sinks

United States Patent

June 4, 2013
View the Complete Patent at the US Patent & Trademark Office
A first device is provided. The first device further comprises an organic light emitting device. The organic light emitting device further comprises an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further comprises an organic host compound, an organic emitting compound capable of fluorescent emission at room temperature, and an organic dopant compound. The triplet energy of the dopant compound is lower than the triplet energy of the host compound. The dopant compound does not strongly absorb the fluorescent emission of the emitting compound.
Zhang; Yifan (Ann Arbor, MI), Forrest; Stephen R. (Ann Arbor, MI), Thompson; Mark (Los Angeles, CA)
The University of Southern California (Los Angeles, CA), The Regents of the University of Michigan (Ann Arbor, MI)
13/ 117,926
May 27, 2011
This invention was made with government support under DE-5C0001013 and DE-EE0000626 awarded by the Department of Energy. The government has certain rights in the invention.