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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
An organic light emitting device is disclosed whose emissive layer has a host material, a first emissive dopant, and a second dopant. The second dopant is an excited energy state managing dopant provided in an amount between 2-10 vol. % of the emissive layer and has a lowest triplet state energy level, T.sub.M, that is higher than a lowest triplet state energy levels, T.sub.1, of both the host and the first dopant and lower than the multiply-excited energy level, T*, of the first dopant.
FORREST, Stephen R. (Ann Arbor, MI), LEE, Jaesang (Ann Arbor, MI), Burlingame, Quinn (Ann Arbor, MI)
The Regents of the University of Michigan (Ann Arbor MI)
15/ 347,371
November 9, 2016
GOVERNMENT RIGHTS [0002] This invention was made with government support under Contract No. DOE DE-EE0007077 awarded by the Department of Energy and Contract No. FA9550-14-1-0245 awarded by the United States Air Force. The government has certain rights in the invention.