Patents by Inventor Yong-Kee Chae

Yong-Kee Chae 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: 20080264480
    Abstract: Embodiments of the present invention generally relate to solar cells and methods and apparatuses for forming the same. More particularly, embodiments of the present invention relate to thin film multi-junction solar cells and methods and apparatuses for forming the same.
    Type: Application
    Filed: June 30, 2008
    Publication date: October 30, 2008
    Inventors: Soo-Young Choi, Yong-Kee Chae, Shuran Sheng
  • Publication number: 20080245414
    Abstract: An improved PV solar cell structure and methods for manufacturing the same are provided. In one embodiment, a photovoltaic device includes a first photoelectric conversion unit, a first transparent conductive oxide layer and a first microcrystalline silicon layer disposed between and in contact with the photoelectric conversion unit and the transparent conductive oxide layer. In another embodiment, a method of forming a photovoltaic solar cell includes providing a substrate having a first transparent conductive oxide layer disposed thereon, depositing a first microcrystalline silicon layer on the transparent conductive oxide layer, and forming a first photoelectric conversion unit on the microcrystalline silicon layer.
    Type: Application
    Filed: April 9, 2007
    Publication date: October 9, 2008
    Inventors: Shuran Sheng, Yong Kee Chae, Tae Kyung Won, Liwei Li, Soo Young Choi, Yanping Li, Joe Griffith Cruz
  • Publication number: 20080223440
    Abstract: Embodiments of the present invention generally relate to solar cells and methods and apparatuses for forming the same. More particularly, embodiments of the present invention relate to thin film multi-junction solar cells and methods and apparatuses for forming the same.
    Type: Application
    Filed: April 25, 2008
    Publication date: September 18, 2008
    Inventors: SHURAN SHENG, Yong-Kee Chae, Soo Young Choi
  • Publication number: 20080188033
    Abstract: Embodiments of the present invention generally relate to solar cells and methods and apparatuses for forming the same. More particularly, embodiments of the present invention relate to thin film multi-junction solar cells and methods and apparatuses for forming the same.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 7, 2008
    Inventors: Soo-Young Choi, Yong-Kee Chae, Shuran Sheng
  • Publication number: 20080173350
    Abstract: Embodiments of the present invention generally relate to solar cells and methods and apparatuses for forming the same. More particularly, embodiments of the present invention relate to thin film multi-junction solar cells and methods and apparatuses for forming the same.
    Type: Application
    Filed: January 18, 2007
    Publication date: July 24, 2008
    Inventors: Soo-Young Choi, Yong-Kee Chae, Shuran Sheng
  • Publication number: 20080153280
    Abstract: Methods for sputter depositing a transparent conductive oxide (TCO) layer are provided in the present invention. The transparent conductive oxide layer may be utilized as a back reflector in a photovoltaic device. In one embodiment, the method includes providing a substrate in a processing chamber, forming a first portion of a transparent conductive oxide layer on the substrate by a first sputter deposition step, and forming a second portion of the transparent conductive oxide layer by a second sputter deposition step.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Inventors: Yanping Li, Yan Ye, Yong-Kee Chae, Tae Kyung Won, Ankur Kadam, Shuran Sheng, Liwei Li
  • Publication number: 20070298590
    Abstract: Methods for depositing a microcrystalline silicon film layer with improved deposition rate and film quality are provided in the present invention. Also, photovoltaic (PV) cell having a microcrystalline silicon film is provided. In one embodiment, the method produces a microcrystalline silicon film on a substrate at a deposition rate greater than about 20 nm per minute, wherein the microcrystalline silicon film has a crystallized volume between about 20 percent to about 80 percent.
    Type: Application
    Filed: June 23, 2006
    Publication date: December 27, 2007
    Inventors: Soo Young Choi, Takako Takehara, John M. White, Yong Kee Chae