Patents by Inventor Geunjin Kim

Geunjin Kim 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).

  • Electronic device which performs as light emitting diode and solar cell
    Patent number: 8723191
    Abstract: An electronic device performing as a light emitting diode and a solar cell, and which comprises: a solar cell unit including a first electrode layer, an energy-level compensation layer formed on the first electrode layer, a photoelectric-conversion layer formed on the energy level compensation layer, and a shared electrode layer formed on the photoelectric-conversion layer; and a light emitting diode unit including the shared electrode layer, and a light emitting layer formed on the shared electrode layer and a second electrode layer formed on the light emitting layer, wherein a LUMO energy-level of the energy-level compensation layer is smaller than a work function of the first electrode layer and is larger than a LUMO energy level of the photoelectric-conversion layer, thereby increasing the generating efficiency of the solar cell unit or the luminous efficiency of the light emitting diode unit due to high electron mobility among the respective layers.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: May 13, 2014
    Assignee: Gwangju Institute of Science and Technology
    Inventors: Kwanghee Lee, Inwook Hwang, Hongkyu Kang, Geunjin Kim
  • ELECTRONIC DEVICE WHICH PERFORMS AS LIGHT EMITTING DIODE AND SOLAR CELL
    Publication number: 20120091473
    Abstract: An electronic device performing as a light emitting diode and a solar cell, and which comprises: a solar cell unit including a first electrode layer, an energy-level compensation layer formed on the first electrode layer, a photoelectric-conversion layer formed on the energy level compensation layer, and a shared electrode layer formed on the photoelectric-conversion layer; and a light emitting diode unit including the shared electrode layer, and a light emitting layer formed on the shared electrode layer and a second electrode layer formed on the light emitting layer, wherein a LUMO energy-level of the energy-level compensation layer is smaller than a work function of the first electrode layer and is larger than a LUMO energy level of the photoelectric-conversion layer, thereby increasing the generating efficiency of the solar cell unit or the luminous efficiency of the light emitting diode unit due to high electron mobility among the respective layers.
    Type: Application
    Filed: November 26, 2010
    Publication date: April 19, 2012
    Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kwanghee Lee, Inwook Hwang, Hongkyu Kang, Geunjin Kim