Patents by Inventor DooWhan Choi

DooWhan Choi 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).

  • Organic solar cell comprising a phenyldithiophene polymer donor and a non-fullerene acceptor
    Patent number: 11133479
    Abstract: The present specification relates to an organic solar cell including a first electrode; a second electrode; and one or more organic material layers including a photoactive layer, wherein the photoactive layer includes an electron donor and an electron acceptor, the electron donor includes a polymer including a first unit represented by Chemical Formula 1; a second unit represented by Chemical Formula 2; and a third unit represented by Chemical Formula 3, and the electron acceptor includes a non-fullerene-based compound.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: September 28, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Doowhan Choi, Jiyoung Lee, Bogyu Lim, Songrim Jang, Ji Hoon Kim
  • Organic solar cell and manufacturing method therefor
    Patent number: 11081603
    Abstract: The present application relates to an organic solar cell including: a first electrode; a second electrode which is disposed to face the first electrode; and an organic material layer having one or more layers which includes a photoactive layer disposed between the first electrode and the second electrode, in which one or more layers of the organic material layer include two or more regions having different thicknesses.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: August 3, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Songrim Jang, Younshin Kim, Jaechol Lee, Doowhan Choi, Jiyoung Lee, Jinseck Kim
  • Method for manufacturing organic solar cell and organic solar cell manufactured by using the same
    Patent number: 11038114
    Abstract: A method for manufacturing an organic solar cell according to an exemplary embodiment of the present application comprises: preparing a substrate; forming a first electrode on the substrate; forming a photoactive layer on the first electrode; drying the photoactive layer with a wind force of 0.01 Mpa to 0.07 Mpa; and forming a second electrode on the photoactive layer.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: June 15, 2021
    Inventors: Doowhan Choi, Jiyoung Lee, Songrim Jang, Bogyu Lim, Junghyun Park
  • Heterocyclic compound and organic electronic device comprising same
    Patent number: 11008343
    Abstract: The present specification relates to a heterocyclic compound of Chemical Formula 1 and an organic electronic device including the same.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: May 18, 2021
    Inventors: Ji Hoon Kim, Jiyoung Lee, Songrim Jang, Doowhan Choi, Bogyu Lim, Junghyun Park
  • METHOD FOR MANUFACTURING ORGANIC SOLAR CELL AND ORGANIC SOLAR CELL MANUFACTURED BY USING THE SAME
    Publication number: 20210135120
    Abstract: A method for manufacturing an organic solar cell according to an exemplary embodiment of the present application comprises: preparing a substrate; forming a first electrode on the substrate; forming a photoactive layer on the first electrode; drying the photoactive layer with a wind force of 0.01 Mpa to 0.07 Mpa; and forming a second electrode on the photoactive layer.
    Type: Application
    Filed: February 27, 2019
    Publication date: May 6, 2021
    Inventors: DOOWHAN CHOI, JIYOUNG LEE, SONGRIM JANG, BOGYU LIM, JUNGHYUN PARK
  • Polymer and organic solar cell including same
    Patent number: 10982042
    Abstract: The present specification relates to a polymer including a first unit represented by Chemical Formula 1; a second unit represented by Chemical Formula 2; and a third unit represented by Chemical Formula 3 or 4, and an organic solar cell including the polymer in a photoactive layer.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: April 20, 2021
    Inventors: Ji Hoon Kim, Jiyoung Lee, Songrim Jang, Doowhan Choi, Bogyu Lim
  • POLYMER AND ORGANIC SOLAR CELL INCLUDING THE SAME
    Publication number: 20210111347
    Abstract: The present specification relates to a polymer including a first unit of Chemical Formula 1; a second unit of Chemical Formula 2; and a third unit of Chemical Formula 3 or 4, and an organic solar cell including the same.
    Type: Application
    Filed: February 22, 2019
    Publication date: April 15, 2021
    Inventors: Jiyoung LEE, Doowhan CHOI, Songrim JANG, Bogyu LIM
  • Organic solar cell module and method for manufacturing same
    Patent number: 10847724
    Abstract: The present invention relates to a manufacturing method of an organic solar cell module and an organic solar cell module, and more particularly, to an organic solar cell module and a manufacturing method thereof, in which lower electrodes are spaced and etched in a staggered pattern and upper electrodes are coated to correspond to the lower electrodes to reduce a photoactive area of a sub cell and arrange more sub cells than sub cells in the related art in a predetermined area. Further, the present invention relates to an organic solar cell module and a manufacturing method thereof, which can reduce the installation cost and the manufacturing cost by coating a buffer layer and a photoactive layer on the lower electrode etched in the staggered pattern using a slot die coating apparatus in the related art.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: November 24, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Younshin Kim, Jaechol Lee, Hangken Lee, Songrim Jang, Doowhan Choi
  • HETEROCYCLIC COMPOUND AND ORGANIC ELECTRONIC DEVICE COMPRISING SAME
    Publication number: 20200251661
    Abstract: The present specification relates to a heterocyclic compound represented by Formula 1 and an organic electronic device comprising the same.
    Type: Application
    Filed: October 22, 2018
    Publication date: August 6, 2020
    Inventors: Ji Hoon KIM, Jiyoung LEE, Songrim JANG, Doowhan CHOI, Bogyu LIM, Junghyun PARK
  • Fullerene derivatives and organic electronic device comprising fullerene derivatives
    Patent number: 10693073
    Abstract: The present specification relates to an organic electronic device including a fullerene derivative.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: June 23, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jaesoon Bae, Jaechol Lee, Jiyoung Lee, Doowhan Choi
  • Organic solar cell and method for manufacturing same
    Patent number: 10672985
    Abstract: The present specification provides an organic solar cell, and a method for manufacturing the same.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: June 2, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Doowhan Choi, Jaechol Lee, Jinseck Kim, Songrim Jang, Donggu Lee
  • Organic electronic element and method for manufacturing same
    Patent number: 10662313
    Abstract: The present specification relates to an organic electronic device and a method for manufacturing the same.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 26, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Doowhan Choi, Jaesoon Bae, Jiyoung Lee, Jaechol Lee
  • METHOD FOR MANUFACTURING ORGANIC SOLAR CELL AND ORGANIC SOLAR CELL MANUFACTURED USING SAME
    Publication number: 20200135946
    Abstract: Provided is a disclosure relating to a method for manufacturing an organic solar cell comprising providing a substrate; forming a first electrode on the substrate; forming a photoactive layer by coating a solution comprising a photoactive material and a solvent on the first electrode; drying the photoactive layer in a closed drying system having a constant volume; and forming a second electrode on the photoactive layer, and an organic solar cell manufactured using the same.
    Type: Application
    Filed: April 27, 2018
    Publication date: April 30, 2020
    Inventors: DOOWHAN CHOI, JIYOUNG LEE, SONGRIM JANG, YOUNSHIN KIM
  • COMPOSITION FOR ORGANIC LAYER OF ORGANIC SOLAR CELL AND METHOD FOR MANUFACTURING ORGANIC SOLAR CELL USING SAME
    Publication number: 20200136050
    Abstract: The present specification relates to a composition for an organic material layer of an organic solar cell, the composition including: a polymer including a first unit represented by Formula 1, a second unit represented by Formula 2, a third unit represented by Formula 3 or 4; and a non-halogen-based solvent, a method for manufacturing an organic solar cell using the same, and an organic solar cell manufactured thereby.
    Type: Application
    Filed: March 7, 2019
    Publication date: April 30, 2020
    Inventors: Doowhan CHOI, Jiyoung LEE, Songrim JANG, Bogyu LIM
  • Polymer and organic solar cell comprising same
    Patent number: 10629816
    Abstract: The present specification relates to a polymer and an organic solar cell including the same.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: April 21, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Ji Hoon Kim, Doowhan Choi, Songrim Jang, Bogyu Lim
  • COMPOSITION FOR ORGANIC LAYER OF ORGANIC SOLAR CELL AND ORGANIC SOLAR CELL
    Publication number: 20200111983
    Abstract: The present specification relates to a composition for an organic material layer of an organic solar cell including an electron donor including a polymer including a first unit represented by Chemical Formula 1, a second unit represented by Chemical Formula 2, and a third unit represented by Chemical Formula 3 or 4; and a non-fullerene-based electron acceptor, and an organic solar cell including the composition.
    Type: Application
    Filed: February 22, 2019
    Publication date: April 9, 2020
    Inventors: Jiyoung LEE, Doowhan CHOI, Bogyu LIM, Ji Hoon KIM
  • ORGANIC ELECTRONIC DEVICE AND MANUFACTURING METHOD THEREOF
    Publication number: 20200091450
    Abstract: The present application relates to an organic electronic device comprising a first electrode; a second electrode provided opposite to the first electrode; a photoactive layer provided between the first electrode and the second electrode; and an electron transfer layer provided between the photoactive layer and the first electrode, wherein the electron transfer layer comprises a zinc oxide (ZnO) nanoparticle having one or more amine groups bonding to a surface thereof, and a method for manufacturing the same.
    Type: Application
    Filed: August 24, 2018
    Publication date: March 19, 2020
    Inventors: Younshin KIM, Songrim JANG, Doowhan CHOI, Jung Ha PARK, Seung Jun YOO
  • ORGANIC SOLAR CELL
    Publication number: 20200028098
    Abstract: The present specification relates to an organic solar cell including a first electrode; a second electrode; and one or more organic material layers including a photoactive layer, wherein the photoactive layer includes an electron donor and an electron acceptor, the electron donor includes a polymer including a first unit represented by Chemical Formula 1; a second unit represented by Chemical Formula 2; and a third unit represented by Chemical Formula 3, and the electron acceptor includes a non-fullerene-based compound.
    Type: Application
    Filed: June 18, 2018
    Publication date: January 23, 2020
    Inventors: Doowhan CHOI, Jiyoung LEE, Bogyu LIM, Songrim JANG, Ji Hoon KIM
  • Organic solar cell and manufacturing method therefor
    Patent number: 10541376
    Abstract: The present specification relates to an organic solar cell and a method for manufacturing the same.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: January 21, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Hangken Lee, Songrim Jang, Jaechol Lee, Jiyoung Lee, Doowhan Choi, Jiwon Bang
  • Compound and Organic Solar Cell Comprising Same
    Publication number: 20200002468
    Abstract: The present specification provides a compound including a unit of Formula 1 and an organic solar cell including the same.
    Type: Application
    Filed: June 4, 2018
    Publication date: January 2, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Bogyu Lim, Songrim Jang, Doowhan Choi, Ji Hoon Kim