Merck Patent Gmbh

Basf Se Corporation

UniversitÄt Zu Koln

Universitaet Zu Koeln

Universität Köln

Klaus Meerholz

Helmut Reichelt

Ingmar Bruder

Ruediger Sens

Hubert Spreitzer

Heinrich Becker

Oskar Nuyken

Susanne Heun

David Christoph Müller

Peter Erk

Frank Meyer

René Peter Scheurich

Reinhard Strey

Rüdiger Sens

Jae Hyung Hwang

Jan Schoeneboom

Frank Wuerthner

Antti Ojala

Jürgen Steiger

Frank Würthner

Aurélie Falcou

Thomas Braig

Vera Steinmann

Markus Gross

Florian Bielefeldt

Nina Riegel

Heike Klesper

Malte Gather

Nils Kronenberg

Elena Tulyakova

Hannah Buerckstuemmer

Stefan Schneider

Jan SCHÖNEBOOM

The present invention relates to the use of mixtures which comprise, as components K1), one or more merocyanines selected from the group of the compounds of the general formulae Ia, Ib, Ic, Id, Ie, IIa and IIb, as defined in more detail in the description, as an electron donor or electron acceptor, and, as component K2), one or more compounds which, with respect to component K1), act correspondingly as an electron acceptor or electron donor, for producing photoactive layers for organic solar cells and organic photodetectors, to a process for producing photoactive layers, corresponding solar cells and organic photodetectors, and to mixtures which comprise, as components, one or more compounds of the general formulae Ia, Ib, Ic, Id, Ie, IIa and/or IIb of component K1, as defined in more detail in the description, and one or more compounds of component K2.

Mixtures for producing photoactive layers for organic solar cells and organic photodetectors

The invention relates to an organic light-emitting diode, known under the abbreviation OLED, and to a method for the production of such an organic light-emitting diode. According to the invention, an OLED or organic light-emitting diode having an emitter layer () is produced, said emitter layer emitting white light in particular. The emitter layer () is arranged within a lossy, optical resonator. The optical path length between the two reflecting layers of the resonator determines the color of the light emitting from the optical resonator and, consequently, from the light-emitting diode. In order to be able to create a variety of colors, there must be different optical path lengths between the two reflecting surfaces. The correspondingly different distances can be produced in only one work step, in contrast to the prior art, by a photolithographic method. The result is an organic light-emitting diode having a lossy optical resonator, having an emitter layer () and a layer () that can be photolithographically structured. Said layer () is comprised of photochemically curable materials. Organic light-emitting diodes according to the invention can be used in light sources, lighting, sensors or spectrometers.

Organic light-emitting diode having optical resonator

The present invention relates to a process for producing an electronic device having two contacts, an anode and a cathode being completely or partly transmissive to light, one or more organic semi-conducting layers and one or more organic buffer layers between the contacts or the cathode and anode respectively. A solution is sprayed which contains organic material for applying at least one porous layer.

Method for production of an organic light emitting diode or of an organic solar cell and organic light emitting diodes or solar cells produced therewith

The invention relates to electronic devices whose electronic properties can surprisingly be improved to a significant degree by inserting at least one crosslinkable polymeric buffer layer, preferably a cationically crosslinkable polymeric buffer layer, between the conductive doped polymer and the organic semiconductor layer. Particularly good properties are obtained with a buffer layer in which crosslinking is thermally induced, i.e. by raising the temperature to 50 to 250&#xb0; C. Alternatively, crosslinking can be radiation-induced by adding a photoacid. Moreover, such a buffer layer can be advantageously applied by means of printing techniques, especially inkjet printing, as the ideal temperature for the thermal treatment is independent of the glass transition temperature of the material. This avoids having to rely on material that has a low molecular weight, making it possible to apply the layer by means of printing techniques. The next layer (the organic semiconductor layer) can also be applied with the aid of different printing techniques, particularly inkjet printing, because the buffer layer is rendered insoluble by the crosslinking process, thus preventing the buffer layer from solubilizing thereafter.

Electronic devices comprising an organic conductor and semiconductor as well as an intermediate buffer layer made of a crosslinked polymer

The present invention describes organic electronic devices in which at least one organic layer of low refractive index is introduced. The light output of the electronic devices is thereby improved.

Electronic devices comprising organic semiconductors

The invention provides low molecular weight or polymeric organic materials in which at least one hydrogen atom is replaced by a group of the formula (A) where R is alkyl group, alkoxyalkyl group, alkoxy group, thioalkoxy group, aryl group or alkenyl group, in each of which one or more hydrogen atoms may be replaced and one or more nonadjacent carbon atoms may be replaced.

Materials that can be structured, method for producing the same and their use

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Rösrath, Germany

Klaus Meerholz