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ORGANIC LIGHT-EMITTING DIODES WITH FLUORESCENT AND PHOSPHORESCENT EMITTERS

United States Patent Application

20170271611
A1
View the Complete Application at the US Patent & Trademark Office
A light emitting device includes a first electrode, a hole transporting layer in contact with the first electrode, a second electrode, an electron transporting layer in contact with the second electrode; and an emissive layer between the hole transporting layer and the electron transporting layer. The emissive layer includes a phosphorescent emitter, a fluorescent emitter, and a host, and the phosphorescent emitter harvests electrogenerated excitons and transfers energy to the fluorescent emitter.
LI, Jian (Tempe, AZ), FLEETHAM, Tyler (Gilbert, AZ)
15/ 505,527
August 21, 2015
STATEMENT OF GOVERNMENT SUPPORT [0002] This invention was made with government support under DE-EE0005075 awarded by the Department of Energy. The government has certain rights in the invention.