Patents by Inventor Piotr Matyba

Piotr Matyba 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).

  • Light-emitting electrochemical device, a system comprising such a device and use of such a device
    Patent number: 9159943
    Abstract: A light-emitting device is provided having an anode, a cathode, and a light-emitting material contacting and separating the cathode and anode. Wherein the cathode includes a graphene and/or graphene oxide.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: October 13, 2015
    Assignee: LUNALEC AB
    Inventors: Nathaniel D. Robinson, Ludvig Edman, Piotr Matyba
  • Light-emitting electrochemical cell and system, use thereof and method for their operation
    Patent number: 9123908
    Abstract: A light-emitting device comprises a first electrode, a second electrode, and a light-emitting active material contacting and separating the first and second electrodes. The device comprises a combination of a conjugated polymer and an electrolyte, said electrolyte comprising ions, allowing for electrochemical doping of the conjugated polymer. In the device, a ratio between the ions and the conjugated polymer is selected to allow for the formation of: (i) a doped region at the respective electrode interface, which allows for injection and transport of electronic charge carriers into and through the doped regions, respectively, at zero or low overpotential, and (ii) an effectively undoped region, separating the doped regions, wherein injected electronic charge carriers are recombineable under excitation of the conjugated polymer and the polymer is de-excitable under the emission of light.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: September 1, 2015
    Assignee: Lunalec AB
    Inventors: Ludvig Edman, Junfeng Fang, Piotr Matyba
  • LIGHT-EMITTING ELECTROCHEMICAL CELL AND SYSTEM, USE THEREOF AND METHOD FOR THEIR OPERATION
    Publication number: 20120019161
    Abstract: A light-emitting device comprises a first electrode, a second electrode, and a light-emitting active material contacting and separating the first and second electrodes. The device comprises a combination of a conjugated polymer and an electrolyte, said electrolyte comprising ions, allowing for electrochemical doping of the conjugated polymer. In the device, a ratio between the ions and the conjugated polymer is selected to allow for the formation of: (i) a doped region at the respective electrode interface, which allows for injection and transport of electronic charge carriers into and through the doped regions, respectively, at zero or low overpotential, and (ii) an effectively undoped region, separating the doped regions, wherein injected electronic charge carriers are recombineable under excitation of the conjugated polymer and the polymer is de-excitable under the emission of light.
    Type: Application
    Filed: January 21, 2009
    Publication date: January 26, 2012
    Applicant: Lunavation AB
    Inventors: Ludvig Edman, Junfeng Fang, Piotr Matyba