Patents by Inventor Vladimir Kamaev

Vladimir Kamaev 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).

  • Perforated-electrode organic light-emitting diodes
    Patent number: 8686627
    Abstract: An organic light emitting diode (OLED) uses a ?-conjugated polymer emissive layer (MEH-PPV) sandwiched between two semitransparent electrodes. The preferred embodiment utilizes an optically thin gold film anode, whereas the cathode was in the form of an optically thick aluminum (Al) film with patterned periodic subwavelength 2D hole array that showed anomalous transmission in the spectral range of the polymer photoluminescence band. At similar current densities we obtained a seven-fold electroluminescence efficiency enhancement with the patterned Al device compared with a control device based on unperforated Al electrode.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: April 1, 2014
    Assignee: University of Utah Research Foundation
    Inventors: Zeev Valentine Vardeny, Chuanzhen Liu, Vladimir Kamaev
  • Perforated-electrode organic light-emitting diodes
    Publication number: 20080018233
    Abstract: An organic light emitting diode (OLED) uses a ?-conjugated polymer emissive layer (MEH-PPV) sandwiched between two semitransparent electrodes. The preferred embodiment utilizes an optically thin gold film anode, whereas the cathode was in the form of an optically thick aluminum (Al) film with patterned periodic subwavelength 2D hole array that showed anomalous transmission in the spectral range of the polymer photoluminescence band. At similar current densities we obtained a seven-fold electroluminescence efficiency enhancement with the patterned Al device compared with a control device based on unperforated Al electrode.
    Type: Application
    Filed: April 14, 2006
    Publication date: January 24, 2008
    Inventors: Zeev Vardeny, Chuanzhen Liu, Vladimir Kamaev