Merck Patent Gmbh

Aaron Lackner

Rouven Linge

Lara-Isabel Rodriguez

Sebastian Meyer

Holger Heil

Nils Koenen

Christof Pflumm

Ilona Stengel

Falk May

Nils Haase

Antonia Horn

Philipp Stoessel

Christian Ehrenreich

Beate Burkhart

Florian Maier-Flaig

Miriam Engel

Amel Mekic

Philipp Harbach

Katja Scheible

Jens Engelhart

Charlotte Walter

Antonia Morherr

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 compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

Materials for organic electroluminescent devices

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 compounds of the formulae (1) to (4), which are suitable for use in electronic devices, in particular organic electroluminescent devices, to intermediate compounds for the compounds or formulae (1) to (4) and to electronic devices, which comprise the compounds of formulae (1) to (4).

The present application relates to a blue light-emitting organic electroluminescent device (OLED) having an anode, a cathode, at least one blue light-emitting layer and at least one hole-transport layer, wherein the at least one blue light-emitting layer comprises an elongated bis-indenofluorene derivative as a main component and wherein the at least one hole-transport layer comprises a polymer with non-conjugated units as a main component as well as to a method for producing the organic electroluminescent device.

Organic electroluminescent device

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds. 

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Mannheim, Germany

Aaron Lackner