Patents by Inventor You-Jin Sim

You-Jin Sim 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: 9984784
    Abstract: The present invention relates to a glass frit, a conductive paste composition comprising the glass frit, and a solar cell fabricated using the conductive paste composition. The glass frit of the present invention comprises SiO2, PbO, and at least one selected from the group consisting of Al2O3, ZrO2, ZnO, and Li2O. Further, the conductive paste composition of the present invention comprises a silver (Ag) powder, a lithium titanium oxide, a glass frit, a binder, and a solvent. The conductive paste composition of the present invention can be used to provide a solar cell having low contact resistance to enhance photoelectric efficiency.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: May 29, 2018
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Won Il Son, You-Jin Sim, Choong-Hoon Paik, Mi-Kyoung Kim
  • Publication number: 20160141066
    Abstract: The present invention relates to a glass frit, a conductive paste composition comprising the glass frit, and a solar cell fabricated using the conductive paste composition. The glass frit of the present invention comprises SiO2, PbO, and at least one selected from the group consisting of Al2O3, ZrO2, ZnO, and Li2O. Further, the conductive paste composition of the present invention comprises a silver (Ag) powder, a lithium titanium oxide, a glass frit, a binder, and a solvent. The conductive paste composition of the present invention can be used to provide a solar cell having low contact resistance to enhance photoelectric efficiency.
    Type: Application
    Filed: January 5, 2016
    Publication date: May 19, 2016
    Inventors: Won II Son, You-Jin Sim, Choong-Hoon Paik, Mi-Kyoung Kim
  • Patent number: 9339870
    Abstract: The present invention provides a method of manufacturing a phosphorus-doped nickel nanoparticle. The method includes the steps of: mixing a nickel solution including a nickel compound and a solvent, a seed particle, and a phosphorus-containing reductant in an arbitrary order to prepare a mixed solution; and adjusting pH of the mixed solution such that the mixed solution becomes acidic. According to the method, a phosphorus-doped nickel nanoparticle that is suitable to be applied to solar cell electrodes requiring low contact resistance can be manufactured.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: May 17, 2016
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Won Il Son, You-Jin Sim, Eui-Duk Kim
  • Patent number: 9301392
    Abstract: Disclosed herein is a conductive particle, including: a base particle containing a metal; a seed particle formed on a surface of the base particle; and a first metal layer formed on the base particle, wherein the first metal layer includes a protrusion surrounding the seed particle. The conductive particle has excellent specific resistance characteristics when it is sintered because it has nanosized protrusions formed on the surface of a metal base particle.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: March 29, 2016
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Won-Il Son, You-Jin Sim, Seok-Heon Oh
  • Publication number: 20150007880
    Abstract: The present invention relates to a glass frit, a conductive paste composition comprising the glass frit, and a solar cell fabricated using the conductive paste composition. The glass frit of the present invention comprises SiO2, PbO, and at least one selected from the group consisting of Al2O3, ZrO2, ZnO, and Li2O. Further, the conductive paste composition of the present invention comprises a silver (Ag) powder, a lithium titanium oxide, a glass frit, a binder, and a solvent. The conductive paste composition of the present invention can be used to provide a solar cell having low contact resistance to enhance photoelectric efficiency.
    Type: Application
    Filed: January 11, 2013
    Publication date: January 8, 2015
    Inventors: Won Il Son, You-Jin Sim, Choong-Hoon Paik, Mi-Kyoung Kim
  • Publication number: 20140363676
    Abstract: The present invention provides a method of manufacturing a phosphorus-doped nickel nanoparticle. The method includes the steps of: mixing a nickel solution including a nickel compound and a solvent, a seed particle, and a phosphorus-containing reductant in an arbitrary order to prepare a mixed solution; and adjusting pH of the mixed solution such that the mixed solution becomes acidic. According to the method, a phosphorus-doped nickel nanoparticle that is suitable to be applied to solar cell electrodes requiring low contact resistance can be manufactured.
    Type: Application
    Filed: December 4, 2012
    Publication date: December 11, 2014
    Inventors: Won Il Son, You-Jin Sim, Eui-Duk Kim
  • Publication number: 20140338743
    Abstract: The present invention relates to a solar cell and a method for preparing the same. The solar cell of the present invention comprises a first conductive type substrate; a second conductive type emitter layer which is located on the substrate and has a first opening; an anti-reflective film which is located on the emitter layer and has a second opening communicating with the first opening; a first electrode which fills the first opening and comprises phosphorus and nickel silicide; a second electrode which is formed on the first electrode, fills the second opening and comprises phosphorus and nickel; a front side electrode which is formed on the second electrode; and a back side electrode which is located on the rear side of the substrate.
    Type: Application
    Filed: December 4, 2012
    Publication date: November 20, 2014
    Inventors: Won Il Son, You-Jin Sim, Eui-Duk Kim
  • Publication number: 20140318618
    Abstract: The present invention relates to a paste composition for a front electrode of a solar cell comprising nano silver powder surface-treated with hexanoic acid, and a solar cell comprising a front electrode formed using the paste composition. According to the present invention, a front electrode is formed using a paste composition containing nano silver powder surface-treated with hexanoic acid, thereby decreasing resistance of a front electrode and broadening an area capable of absorbing light, to improve solar cell efficiency.
    Type: Application
    Filed: November 19, 2012
    Publication date: October 30, 2014
    Inventors: Choong-Hoon Paik, Won Il Son, You-Jin Sim
  • Publication number: 20140076620
    Abstract: Disclosed herein is a conductive particle, including: a base particle containing a metal; a seed particle formed on a surface of the base particle; and a first metal layer formed on the base particle, wherein the first metal layer includes a protrusion surrounding the seed particle. The conductive particle has excellent specific resistance characteristics when it is sintered because it has nanosized protrusions formed on the surface of a metal base particle.
    Type: Application
    Filed: November 23, 2012
    Publication date: March 20, 2014
    Applicant: HANWHA CHEMICAL CORPORATION
    Inventors: Won-Il Son, You-Jin Sim, Seok-Heon Oh