Electroluminescent devices
AssigneeMerck Patent GmbH
InventorsIlona STENGEL, Antonia MORHERR, Falk MAY, Aaron LACKNER, Christof PFLUMM, Amel MEKIC, Nils HAASE
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Abstract
The present invention describes electronic devices and compositions that can be used in electronic devices.
Claims27
-25. (canceled)
A fluorescent electronic device comprising a sensitizer and a fluorescent emitter, wherein the sensitizer is a phosphorescent compound and wherein the fluorescent emitter is a sterically shielded compound.
A composition comprising at least one sensitizer and at least one fluorescent emitter, wherein the sensitizer is a phosphorescent compound and wherein the fluorescent emitter is a sterically shielded compound having a shielding factor (SF) of not less than 0.45.
Dependencies are inferred from the claim text.