Patents by Inventor Chunki Kim

Chunki 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).

  • Molecular semiconductors containing diketopyrrolopyrrole and dithioketopyrrolopyrrole chromophores for small molecule or vapor processed solar cells
    Patent number: 11974500
    Abstract: Optoelectronic devices, such as photovoltaic devices, comprising a low band gap, solution processable diketopyrrolopyrrole or dithioketopyrrolopyrrole chromophore core or cores are disclosed. Also disclosed are methods of fabricating such optoelectronic devices.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: April 30, 2024
    Assignee: The Regents of the University of California
    Inventors: Thuc-Quyen Nguyen, Arnold Bernarte Tamayo, Bright Walker, Tyler Kent, Chunki Kim, Mananya Tantiwiwat
  • DISPLAY APPARATUS
    Publication number: 20240049495
    Abstract: A display apparatus according to an example embodiment of the present disclosure includes a cathode electrode over a substrate, a first emission part over the cathode electrode, the first emission part including a first electron transport layer, a first emission layer, a first hole transport layer, and a first charge generation layer, a second emission part over the first emission part, the second emission part including a second charge generation layer, a second electron transport layer, a second emission layer, a second hole transport layer, and a third charge generation layer, a third emission part over the second emission part, the third emission part including a fourth charge generation layer, a third electron transport layer, a third emission layer, and a third hole transport layer, and an anode electrode over the third emission part. A thickness of the third electron transport layer may be larger than a thickness of the second electron transport layer.
    Type: Application
    Filed: July 25, 2023
    Publication date: February 8, 2024
    Inventors: Jeongeun WON, SeungRyong JOUNG, Chunki KIM, Yosub LEE
  • MOLECULAR SEMICONDUCTORS CONTAINING DIKETOPYRROLOPYRROLE AND DITHIOKETOPYRROLOPYRROLE CHROMOPHORES FOR SMALL MOLECULE OR VAPOR PROCESSED SOLAR CELLS
    Publication number: 20180233674
    Abstract: Optoelectronic devices, such as photovoltaic devices, comprising a low band gap, solution processable diketopyrrolopyrrole or dithioketopyrrolopyrrole chromophore core or cores are disclosed. Also disclosed are methods of fabricating such optoelectronic devices.
    Type: Application
    Filed: January 29, 2018
    Publication date: August 16, 2018
    Inventors: Thuc-Quyen NGUYEN, Arnold Bernarte TAMAYO, Bright WALKER, Tyler KENT, Chunki KIM, Mananya TANTIWIWAT
  • MOLECULAR SEMICONDUCTORS CONTAINING DIKETOPYRROLOPYRROLE AND DITHIOKETOPYRROLOPYRROLE CHROMOPHORES FOR SMALL MOLECULE OR VAPOR PROCESSED SOLAR CELLS
    Publication number: 20160301017
    Abstract: Optoelectronic devices, such as photovoltaic devices, comprising a low band gap, solution processable diketopyrrolopyrrole or dithioketopyrrolopyrrole chromophore core or cores are disclosed. Also disclosed are methods of fabricating such optoelectronic devices.
    Type: Application
    Filed: April 8, 2016
    Publication date: October 13, 2016
    Inventors: Thuc-Quyen NGUYEN, Arnold Bernarte TAMAYO, Bright WALKER, Tyler KENT, Chunki KIM, Mananya TANTIWIWAT
  • Cholesteric glassy liquid crystals with hybrid chiral-nematic mesogens
    Patent number: 8562863
    Abstract: A glassy cholesteric liquid crystalline composition comprising compounds with a volume-expanding core bound to one or more hybrid chiral-nematic (or Ch) pendant moieties and a method of producing oriented films of such compounds. The Ch pendant moieties are comprised of chiral spacer groups connected to the core via linker groups and nematic groups linked to the chiral spacer groups. Thin-films of the composition are morphologically stable for extended periods of time. Also, the thin-films are able to selectively interact with light from the visible to near-IR wavelength range.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: October 22, 2013
    Assignee: The University of Rochester
    Inventors: Shaw H. Chen, Chunki Kim
  • MOLECULAR SEMICONDUCTORS CONTAINING DIKETOPYRROLOPYRROLE AND DITHIOKETOPYRROLOPYRROLE CHROMOPHORES FOR SMALL MOLECULE OR VAPOR PROCESSED SOLAR CELLS
    Publication number: 20100326525
    Abstract: Optoelectronic devices, such as photovoltaic devices, comprising a low band gap, solution processable diketopyrrolopyrrole or dithioketopyrrolopyrrole chromophore core or cores are disclosed. Also disclosed are methods of fabricating such optoelectronic devices.
    Type: Application
    Filed: March 26, 2010
    Publication date: December 30, 2010
    Inventors: Thuc-Quyen NGUYEN, Arnold Bernarte Tamayo, Bright Walker, Tyler Kent, Chunki Kim, Mananya Tantiwiwat
  • CHOLESTERIC GLASSY LIQUID CRYSTALS WITH HYBRID CHIRAL-NEMATIC MESOGENS
    Publication number: 20100086704
    Abstract: A glassy cholesteric liquid crystalline composition comprising compounds with a volume-expanding core bound to one or more hybrid chiral-nematic (or Ch) pendant moieties and a method of producing oriented films of such compounds. The Ch pendant moieties are comprised of chiral spacer groups connected to the core via linker groups and nematic groups linked to the chiral spacer groups. Thin-films of the composition are morphologically stable for extended periods of time. Also, the thin-films are able to selectively interact with light from the visible to near-IR wavelength range.
    Type: Application
    Filed: September 11, 2009
    Publication date: April 8, 2010
    Inventors: Shaw H. Chen, Chunki Kim