Patents by Inventor Seung Ook Roh

Seung Ook Roh 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).

  • Polymer solar cell and method of manufacturing the same
    Patent number: 7939750
    Abstract: Disclosed herein are a polymer solar cell, comprising a substrate, a first electrode, a hole injection layer, a photoactive layer, and a second electrode, characterized in that an electron-accepting layer is formed between the photoactive layer and the second electrode, and a method of manufacturing the polymer solar cell. The polymer solar cell comprises an electron-accepting layer between the photoactive layer and the second electrode, thereby assuring excellent power conversion efficiency. Furthermore, high power conversion efficiency can also be attained in a low-temperature thermal annealing process.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: May 10, 2011
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Byung Hee Sohn, Sang Cheol Park, Seok Gwang Doo, Ji Young Kim, Seung Ook Roh, Chang Hee Lee
  • POLYMER SOLAR CELL AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20080163927
    Abstract: Disclosed herein are a polymer solar cell, comprising a substrate, a first electrode, a hole injection layer, a photoactive layer, and a second electrode, characterized in that an electron-accepting layer is formed between the photoactive layer and the second electrode, and a method of manufacturing the polymer solar cell. The polymer solar cell comprises an electron-accepting layer between the photoactive layer and the second electrode, thereby assuring excellent power conversion efficiency. Furthermore, high power conversion efficiency can also be attained in a low-temperature thermal annealing process.
    Type: Application
    Filed: July 20, 2007
    Publication date: July 10, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung Hee SOHN, Sang Cheol PARK, Seok Gwang DOO, Ji Young KIM, Seung Ook ROH, Chang Hee LEE