Patents by Inventor Chaehwan Jeong

Chaehwan Jeong 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).

  • Publication number: 20130078551
    Abstract: A manufacturing method for a solid oxide fuel cell (SOFC) unit cell is disclosed. The manufacturing method may include manufacturing an Ni—CeScSZ anode layer; manufacturing a CeScSZ electrolyte layer; manufacturing a gadolinia-doped ceria (GDC) buffer layer; and manufacturing a lanthanum strontium cobalt ferrite (LSCF) cathode layer. Accordingly, an ohmic resistance of electrolyte and a polarization resistance may be reduced and high output may be obtained even at a middle low temperature.
    Type: Application
    Filed: June 24, 2011
    Publication date: March 28, 2013
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Ho Sung Kim, Young Mi Kim, Ju Hee Kang, Duck Rye Chang, Jong Ho Lee, Chang Seog Kang, Chaehwan Jeong, Jae Hyuk Jang
  • Patent number: 8304336
    Abstract: A method for fabricating a solar cell using inductively coupled plasma chemical vapor deposition (ICP-CVD) including a first electrode, a P layer, an intrinsic layer, an N-type layer and a second electrode. The method includes forming an intrinsic layer including a hydrogenated amorphous silicon (Si) thin film by an inductively coupled plasma chemical vapor deposition (ICP-CVD) device using mixed gas including hydrogen (H2) gas and silane (SiH4) gas. In the mixed gas, silane gas is in a ratio of 8 to 10 relative to mixed gas.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: November 6, 2012
    Assignee: Korea Institute of Industrial Technology
    Inventors: Chaehwan Jeong, Jong Ho Lee, Ho-Sung Kim, Seongjae Boo
  • Patent number: 8283245
    Abstract: In one example, a method for fabricating a solar cell comprising a first electrode, a first-type layer, an intrinsic layer, a second-type layer and a second electrode is disclosed. At least one of the second-type layer, the intrinsic layer and the first-type layer is formed as a crystallized Si layer by an inductively coupled plasma chemical vapor deposition (ICP-CVD) device using mixed gas including hydrogen (H2) gas and silane (SiH4) gas, the mixed gas having a silane gas (SiH4) in a ratio of 0.016 to 0.02.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: October 9, 2012
    Assignee: Korea Institute of Industrial Technology
    Inventors: Chaehwan Jeong, Jong Ho Lee, Ho-Sung Kim, Seongjae Boo
  • Patent number: 8268714
    Abstract: In one example, a method for fabricating a solar cell comprising a first electrode, a first-type layer, an intrinsic layer, a second-type layer and a second electrode is disclosed. The method comprising forming a second-type layer including an amorphous silicon (Si) carbide thin film by an inductively coupled plasma chemical vapor deposition (ICP-CVD) device using mixed gas including hydrogen (H2) gas, silane (SiH4) gas, diborane (B2H6) and ethylene (C2H4) gas, wherein the ethylene (C2H4) gas includes 60% hydrogen gas diluted ethylene gas, the diborane gas is 97% hydrogen gas diluted diborane gas, the mixed gas includes 1 to 1.2% ethylene gas and 6 to 6.5% diborane gas.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: September 18, 2012
    Assignee: Korea Institute of Industrial Technology
    Inventors: Chaehwan Jeong, Jong Ho Lee, Ho-Sung Kim, Seongjae Boo
  • Publication number: 20120077306
    Abstract: In one example, a method for fabricating a solar cell comprising a first electrode, a first-type layer, an intrinsic layer, a second-type layer and a second electrode is disclosed. At least one of the second-type layer, the intrinsic layer and the first-type layer is formed as a crystallized Si layer by an inductively coupled plasma chemical vapor deposition (ICP-CVD) device using mixed gas including hydrogen (H2) gas and silane (SiH4) gas, the mixed gas having a silane gas (SiH4) in a ratio of 0.016 to 0.02.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 29, 2012
    Applicant: Korea Institute of Industrial Technology
    Inventors: Chaehwan Jeong, Jong Ho Lee, Ho-Sung Kim, Seongjae Boo
  • Publication number: 20120077303
    Abstract: In one example, a method for fabricating a solar cell comprising a first electrode, a first-type layer, an intrinsic layer, a second-type layer and a second electrode is disclosed. The method comprising forming a second-type layer including an amorphous silicon (Si) carbide thin film by an inductively coupled plasma chemical vapor deposition (ICP-CVD) device using mixed gas including hydrogen (H2) gas, silane (SiH4) gas, diborane (B2H6) and ethylene (C2H4) gas, wherein the ethylene (C2H4) gas includes 60% hydrogen gas diluted ethylene gas, the diborane gas is 97% hydrogen gas diluted diborane gas, the mixed gas includes 1 to 1.2% ethylene gas and 6 to 6.5% diborane gas.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 29, 2012
    Applicant: Korea Institute of Industrial Technology
    Inventors: Chaehwan Jeong, Jong Ho Lee, Ho-Sung Kim, Seongjae Boo
  • Publication number: 20100210061
    Abstract: A method for fabricating a solar cell using inductively coupled plasma chemical vapor deposition (ICP-CVD) including a first electrode, a P layer, an intrinsic layer, an N-type layer and a second electrode. The method includes forming an intrinsic layer including a hydrogenated amorphous silicon (Si) thin film by an inductively coupled plasma chemical vapor deposition (ICP-CVD) device using mixed gas including hydrogen (H2) gas and silane (SiH4) gas. In the mixed gas, silane gas is in a ratio of 8 to 10 relative to mixed gas.
    Type: Application
    Filed: October 23, 2009
    Publication date: August 19, 2010
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Chaehwan Jeong, Jong Ho Lee, Ho-Sung Kim, Seongjae Boo
  • Publication number: 20100206367
    Abstract: A method for fabricating a silicon nano wire, a solar cell including the silicon nano wire and a method for fabricating the solar cell. The solar cell includes a substrate, a first++-type poly-Si layer formed on the substrate, a first-type silicon nano wire layer including a first-type silicon nano wire grown from the first++-type poly-Si layer, an intrinsic layer formed on the substrate having the first-type silicon nano wire layer, and a second-type doping layer formed on the intrinsic layer.
    Type: Application
    Filed: October 23, 2009
    Publication date: August 19, 2010
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Chaehwan JEONG, Minsung JEON, Jin Hyeok KIM, Hang Ju KO, Suk Ho LEE