Patents by Inventor Nina Riegel

Nina Riegel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110266572
    Abstract: In at least one embodiment of the organic light-emitting component (10), the latter comprises a unipolar charge carrier balder layer (3), a first layer (1) and a second layer (2) which are applied to opposing sides of the charge carrier barrier layer (3) and are in each case formed of at least one organic material, and two ambipolar injection layers (4), which are applied to the sides of the first (1) and second layers (2) remote from the charge carrier barrier layer (3). Such an organic, light-emitting component (10) may be operated efficiently with alternating current.
    Type: Application
    Filed: May 7, 2009
    Publication date: November 3, 2011
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Thomas Dobbertin, Nina Riegel
  • Publication number: 20110065222
    Abstract: The present invention relates to an electronic component having at least one anode, at least one cathode, at least one charge injection layer, at least one layer of an organic semiconductor and at least one layer situated between the charge injection layer and the organic semiconductor layer, which component is characterized in that the layer situated between the charge injection layer and the organic semiconductor layer and the organic semiconductor layer are obtainable by coating the charge injection layer with a mixture composition at least one material which can be made insoluble by means of chemical reaction, and at least one organic semiconductor, method for producing said component and use of said component.
    Type: Application
    Filed: November 18, 2010
    Publication date: March 17, 2011
    Applicant: Merck Patent GmbH
    Inventors: Frank Meyer, Aurélie Ludemann, René Scheurich, Heinrich Becker, Klaus Meerholz, David Christoph Mueller, Nina Riegel, Anne Koehnen
  • Patent number: 7901766
    Abstract: 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° 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.
    Type: Grant
    Filed: September 4, 2004
    Date of Patent: March 8, 2011
    Assignee: Merck Patent GmbH
    Inventors: David Christoph Müller, Nina Riegel, Frank Meyer, René Scheurich, Aurélie Falcou, Klaus Meerholz
  • Publication number: 20100314648
    Abstract: A radiation-emitting device with a first electrode, a first emission layer, a second emission layer and a second electrode. The invention additionally relates to a method of producing a radiation-emitting device.
    Type: Application
    Filed: September 25, 2008
    Publication date: December 16, 2010
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Michael Fehrer, Karsten Heuser, Egbert Höfling, Tilman Schlenker, Andrew Ingle, Michael Popp, Markus Klein, Nina Riegel, Günter Schmid, Ralf Krause, Stefan Seidel, Fryderyk Kozlowski, Arvid Hunze, Günter Gieres
  • Publication number: 20090026448
    Abstract: The present invention relates to an electronic component having at least one anode, at least one cathode, at least one charge injection layer, at least one layer of an organic semiconductor and at least one layer situated between the charge injection layer and the organic semiconductor layer, which component is characterized in that the layer situated between the charge injection layer and the organic semiconductor layer and the organic semiconductor layer are obtainable by coating the charge injection layer with a mixture composing at least one material which can be made insoluble by means of chemical reaction, and at least one organic semiconductor, method for producing said component and use of said component.
    Type: Application
    Filed: January 31, 2007
    Publication date: January 29, 2009
    Applicant: Merck Patent GmbH
    Inventors: Frank Meyer, Aurelie Ludemann, Rene Scheurich, Heinrich Becker, Klaus Meerholz, David Christoph Mueller, Nina Riegel, Anne Koehnen
  • Publication number: 20060251886
    Abstract: 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° 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.
    Type: Application
    Filed: September 4, 2004
    Publication date: November 9, 2006
    Inventors: David Müller, Nina Riegel, Frank Meyer, Rene Scheurich, Aurelie Falcou, Klaus Meerholz