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ULTRA-HIGH EFFICIENCY (125%) PHOSPHORESCENT ORGANIC LIGHT EMITTING DIODES USING SINGLET FISSION

United States Patent Application

20130240850
A1
View the Complete Application at the US Patent & Trademark Office
An organic light emitting device (OLED) is provided. The OLED includes, an anode; a cathode; and an emissive layer disposed between the anode and the cathode. The emissive layer includes a singlet fission sensitizer and a triplet emitter. The singlet energy of the singlet fission sensitizer is equal to or greater than twice the triplet energy of the singlet fission sensitizer. The triplet energy of the triplet emitter is less than the triplet energy of the singlet fission sensitizer.
Forrest, Stephen R. (Ann Arbor, MI), Zhang, Yifan (Ann Arbor, MI), Bergemann, Kevin (Ann Arbor, MI)
The Regents of the University of Michigan (Ann Arbor MI)
13/ 788,107
March 7, 2013
GOVERNMENT RIGHTS [0002] This invention was made with government support under DE-SC0001013 awarded by the Department of Energy. The government has certain rights in the invention.