Merck Patent Gmbh

Udc Ireland Limited

Falk May

Philipp Stoessel

Christof Pflumm

Christian Lennartz

Peter Murer

Jan Birnstock

Christian Eickhoff

Stefan Metz

Klaus Kahle

Antonia Horn

Jochen Pfister

Glauco Battagliarin

Aaron Lackner

Armin Auch

Nils Haase

Ilona Stengel

Thomas Geßner

Amel Mekic

Charlotte Walter

Antonia Morherr

Thomas Wesley Holcombe

The present invention describes electronic devices and compositions that can be used in electronic devices, the electronic devices including a sensitizer and a fluorescent emitter, wherein the sensitizer is a phosphorescent compound and wherein at least one of the two following conditions (I) or (II) must be satisfied, it being preferable when condition (I) is satisfied:(FE)−()≥  (I)(FE)−()≤  (II)wherein, e.g., X, Y are each −0.5 eV; S(FE) is the energy of the first excited singlet state of the fluorescent emitter; S(S) is the energy of the first excited state of the sensitizer; S(FE) is the energy of the first excited singlet state of the fluorescent emitter; S(S) is the energy of the first excited state of the sensitizer; and wherein the photoluminescence spectra of the sensitizer and of the fluorescent emitter are determined at room temperature.

Electroluminescent devices having sensitizer and fluorescent emitter

The present invention relates to metal complexes and electronic devices, in particular organic electroluminescent devices, containing said metal complexes.

Metal complexes

A composition containing 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. In addition, the invention is to a fluorescent electronic device containing a sensitizer and a fluorescent emitter, wherein the sensitizer is a phosphorescent compound and wherein the fluorescent emitter is a sterically shielded compound.

Composition and an electronic device containing a sensitizer and a fluorescent emitter

The present invention relates to iridium complexes suitable for use in organic electroluminescent devices, especially as emitters.

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Mainz, Germany

Falk May