Patents by Inventor Hee-Yeon Yang

Hee-Yeon Yang 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: 8641915
    Abstract: Example embodiments are directed to an electronic device and a method for manufacturing the same. The electronic device includes a polymer thin film and an electrode. The polymer thin film includes nanoparticles. The electrode is formed by attaching a graphene thin film of a sheet shape formed through graphene deposition using a vapor carbon supply source to the polymer thin film. In the method, a graphene thin film of a sheet shape is formed through graphene deposition using a vapor carbon supply source. A polymer solution with distributed nanoparticles is prepared. The polymer solution with distributed nanoparticles is spin-coated on a substrate. A polymer thin film comprising the nanoparticles is formed by drying the spin-coated polymer solution. An electrode is formed by attaching the graphene thin film onto the polymer thin film.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: February 4, 2014
    Assignees: Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Hanyang University
    Inventors: Tae-Whan Kim, Won-il Park, Dong-Ick Son, Hee-Yeon Yang, Jung-Min Lee, Jae-Hun Jung
  • Patent number: 8598568
    Abstract: Provided are a photodetector (PD) using a graphene thin film and nanoparticles and a method of fabricating the same. The PD includes a graphene thin film having a sheet shape formed by means of a graphene deposition process using a vapor-phase carbon (C) source and a nanoparticle layer formed on the graphene thin film and patterned to define an electrode region of the graphene thin film, the nanoparticle layer being formed of nanoparticles without a matrix material. The PD has a planar structure using the graphene thin film as a channel and an electrode and using nanoparticles as a photovoltaic material (capable of forming electron-hole pairs due to photoelectron-motive force caused by ultraviolet (UV) light). Since the PD has a very simple structure, the PD may be fabricated at low cost with high productivity. Also, the PD includes the graphene thin film to reduce power consumption.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: December 3, 2013
    Assignee: Industry-University Cooperation Foundation, Hanyang University
    Inventors: Tae-Whan Kim, Jae-Hun Jung, Dong-Ick Son, Jung-Min Lee, Hee-Yeon Yang, Won-Il Park
  • Publication number: 20120161106
    Abstract: Provided are a photodetector (PD) using a graphene thin film and nanoparticles and a method of fabricating the same. The PD includes a graphene thin film having a sheet shape formed by means of a graphene deposition process using a vapor-phase carbon (C) source and a nanoparticle layer formed on the graphene thin film and patterned to define an electrode region of the graphene thin film, the nanoparticle layer being formed of nanoparticles without a matrix material. The PD has a planar structure using the graphene thin film as a channel and an electrode and using nanoparticles as a photovoltaic material (capable of forming electron-hole pairs due to photoelectron-motive force caused by ultraviolet (UV) light). Since the PD has a very simple structure, the PD may be fabricated at low cost with high productivity. Also, the PD includes the graphene thin film to reduce power consumption.
    Type: Application
    Filed: August 24, 2010
    Publication date: June 28, 2012
    Applicant: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION, HANYANG UNIVERSITY
    Inventors: Tae-Whan Kim, Jae-Hun Jung, Dong-Ick Son, Jung-Min Lee, Hee-Yeon Yang, Won-Il Park
  • Publication number: 20110041980
    Abstract: Example embodiments are directed to an electronic device and a method for manufacturing the same. The electronic device includes a polymer thin film and an electrode. The polymer thin film includes nanoparticles. The electrode is formed by attaching a graphene thin film of a sheet shape formed through graphene deposition using a vapor carbon supply source to the polymer thin film. In the method, a graphene thin film of a sheet shape is formed through graphene deposition using a vapor carbon supply source. A polymer solution with distributed nanoparticles is prepared. The polymer solution with distributed nanoparticles is spin-coated on a substrate. A polymer thin film comprising the nanoparticles is formed by drying the spin-coated polymer solution. An electrode is formed by attaching the graphene thin film onto the polymer thin film.
    Type: Application
    Filed: August 20, 2010
    Publication date: February 24, 2011
    Inventors: Tae-Whan Kim, Won-il Park, Dong-Ick Son, Hee-Yeon Yang, Jung-Min Lee, Jae-Hun Jung