Patents by Inventor Ho-Gyoung Kim

Ho-Gyoung 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).

  • Patent number: 8597973
    Abstract: Discussed are an ink containing nanoparticles for formation of thin film of a solar cell and its preparation method, CIGS thin film solar cell having at least one light absorption layer formed by coating or printing the above ink containing nanoparticles on a rear electrode, and a process for manufacturing the same. More particularly, the above absorption layer includes Cu, In, Ga and Se elements as constitutional ingredients thereof and such elements exist in the light absorption layer by coating or printing an ink that contains Cu2Se nanoparticles and (In,Ga)2Se3 nanoparticles on the rear electrode, and heating the treated electrode with the ink. Since Cu(In,Ga)Se2 (CIGS) thin film is formed using the ink containing nanoparticles, a simple process is used without requirement of vacuum processing or complex equipment and particle size of the thin film, Ga doping concentration, etc., can be easily regulated.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: December 3, 2013
    Assignee: LG Electronics Inc.
    Inventors: Young-Ho Choe, Young-Hee Lee, Yong-Woo Choi, Hyung-Seok Kim, Ho-Gyoung Kim
  • Publication number: 20120100661
    Abstract: Discussed are an ink containing nanoparticles for formation of thin film of a solar cell and its preparation method, CIGS thin film solar cell having at least one light absorption layer formed by coating or printing the above ink containing nanoparticles on a rear electrode, and a process for manufacturing the same. More particularly, the above absorption layer includes Cu, In, Ga and Se elements as constitutional ingredients thereof and such elements exist in the light absorption layer by coating or printing an ink that contains Cu2Se nanoparticles and (In,Ga)2Se3 nanoparticles on the rear electrode, and heating the treated electrode with the ink. Since Cu(In,Ga)Se2 (CIGS) thin film is formed using the ink containing nanoparticles, a simple process is used without requirement of vacuum processing or complex equipment and particle size of the thin film, Ga doping concentration, etc., can be easily regulated.
    Type: Application
    Filed: December 27, 2011
    Publication date: April 26, 2012
    Inventors: Young-Ho Choe, Young-Hee Lee, Yong-Woo Choi, Hyung-Seok Kim, Ho-Gyoung Kim
  • Publication number: 20100319776
    Abstract: Disclosed are an ink containing nanoparticles for formation of thin film of a solar cell and its preparation method, CIGS thin film solar cell having at least one light absorption layer formed by coating or printing the above ink containing nanoparticles on a rear electrode, and a process for manufacturing the same. More particularly, the above absorption layer comprises Cu, In, Ga and Se elements as constitutional ingredients thereof and such elements exist in the light absorption layer by coating or printing an ink that contains Cu2Se nanoparticles and (In,Ga)2Se3 nanoparticles on the rear electrode, and heating the treated electrode with the ink. According to the present invention, since Cu(In,Ga)Se2, that is, CIGS, thin film is formed using the ink containing nanoparticles, a simple process is preferably used without requirement of vacuum processing or complex equipment and particle size of the thin film, Ga doping concentration, etc. can be easily regulated.
    Type: Application
    Filed: April 11, 2008
    Publication date: December 23, 2010
    Applicant: LG ELECTRONICS INC.
    Inventors: Young-Ho Choe, Young-Hee Lee, Yong-Woo Choi, Hyung-Seok Kim, Ho-Gyoung Kim