Patents by Inventor Jeung-hyun Jeong

Jeung-hyun 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: 20200343404
    Abstract: An embodiment includes a method of texturing a semiconductor substrate, a semiconductor substrate manufactured using the method, and a solar cell including the semiconductor substrate, the method including: forming metal nanoparticles on a semiconductor substrate, primarily etching the semiconductor substrate, removing the metal nanoparticles, and secondarily etching the primarily etched semiconductor substrate to form nanostructures.
    Type: Application
    Filed: November 1, 2017
    Publication date: October 29, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Doh Kwon LEE, In Ho Kim, Won Mok Kim, Jong Keuk Park, Taek Sung Lee, Doo Seok Jeong, Hyeon Seung Lee, Jeung Hyun Jeong
  • Publication number: 20200343309
    Abstract: Disclosed are a monolithic solar cell and a method of manufacturing the same. More particularly, the present invention provides a monolithic solar cell including a first solar cell formed by sequentially stacking an electrode, a silicon substrate, and an n-type emitter layer; a junction layer formed on the an n-type emitter layer; an interfacial layer formed on the junction layer; and a second solar cell including a perovskite layer and integrated onto the interfacial layer. The interfacial layer according to the present invention may be pyrolyzed and thus partially or completely lost during a monolithic solar cell manufacturing process. In addition, by providing an interfacial layer between the two cells constituting a monolithic solar cell according to the present invention, charge transfer and recombination characteristics between the two cells can be improved and thus a monolithic solar cell having significantly improved photoelectric conversion efficiency can be provided.
    Type: Application
    Filed: November 27, 2017
    Publication date: October 29, 2020
    Inventors: Doh Kwon LEE, Yoon Hee Jang, In Ho Kim, Hee Sun Yun, Jeung Hyun Jeong
  • Publication number: 20200274015
    Abstract: Provided is a multi-junction solar cell in which two or more absorption layers having different bandgaps are stacked on one another. The multi-junction solar cell includes a first cell including a first absorption layer, and a second cell electrically connected in series onto the first cell, wherein the second cell includes a second absorption layer having a higher bandgap compared to the first absorption layer, and a plurality of recesses penetrating through the second absorption layer.
    Type: Application
    Filed: March 27, 2019
    Publication date: August 27, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung Hyun Jeong, In Ho Kim, Won Mok Kim, Jong Keuk Park, Hyeong Geun Yu
  • Publication number: 20200274007
    Abstract: Provided is a color-controllable thin-film solar cell including a transparent electrode layer disposed on an absorption layer, and color structure patterns disposed on at least parts of the transparent electrode layer.
    Type: Application
    Filed: March 27, 2019
    Publication date: August 27, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung Hyun JEONG, Kyeong Seok Lee, Doh Kwon Lee, Won Mok Kim, Hyeong Geun Yu
  • Patent number: 10566478
    Abstract: Provided are a thin-film solar cell module structure and a method of manufacturing the same.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: February 18, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung-Hyun Jeong, Jong-Keuk Park, Won Mok Kim, Seung Hee Han, Doh Kwon Lee
  • Publication number: 20200025988
    Abstract: An exemplary embodiment relates to a nano-color coating layer and a method of forming the same, and more particularly, to a color structure representing a back side-reflection color with metallic luster and high chroma when observed in a substrate incident mode by greatly enhancing light absorbance at a specific wavelength using a resonance structure in which a light absorbing material is inserted between a transparent substrate and an upper mirror layer. In addition, the exemplary embodiment provides a color structure which controls metallic luster and texture of a high-chroma color from gloss-semi-gloss-matte texture in various ways by introducing a haze surface structure in which light scattering occurs on at least one surface of the transparent substrate.
    Type: Application
    Filed: July 12, 2019
    Publication date: January 23, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyeong Seok LEE, Doh Kwon Lee, Jeung Hyun Jeong, Won Mok Kim
  • Patent number: 10494476
    Abstract: Disclosed is a conjugated polymer for an organic solar cell. The proportion of units containing no alkyl thiophene moieties in the conjugated polymer can vary to make the conjugated polymer suitable for use as an electron-donating organic semiconductor material in a small-area or large-area organic solar cell. Therefore, the use of the conjugated polymer ensures high energy conversion efficiency of the organic solar cell.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: December 3, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Hae Jung Son, Phillip Lee, Jeung-hyun Jeong, Gyoungsik Kim, Sungmin Park, Injeong Shin, Sung-yoon Joe, Ji Yeong Kim
  • Publication number: 20190341510
    Abstract: Provided is a chalcogenide thin film solar cell having a transparent back electrode, including a transparent substrate, a photoactive layer including an S, Se-based chalcogenide material, and a back electrode disposed between the transparent substrate and the photoactive layer and including a transparent conductive oxide containing titanium (Ti).
    Type: Application
    Filed: November 12, 2018
    Publication date: November 7, 2019
    Inventors: Won Mok KIM, Jeung Hyun JEONG, Jong Keuk PARK, Sung Bin CHOI
  • Publication number: 20190157481
    Abstract: According to an aspect of the present invention, there is provided a method of manufacturing a compound thin film, which includes configuring an electrodeposition circuit by connecting an electrolytic solution, which is manufactured by mixing a predetermined precursor with a solvent, and an electrochemical cell, which includes a working electrode in a form of an electrode at which a specific pattern is patterned on a predetermined substrate, to a voltage application device or a current application device, and applying a reduction voltage or current to the working electrode using the voltage application device or the current application device, and selectively electrodepositing a thin film in some region of the electrode along a shape of the electrode at which the specific pattern is patterned.
    Type: Application
    Filed: August 24, 2018
    Publication date: May 23, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Doh-Kwon LEE, Jangmi Lee, Inho Kim, Jeung-hyun Jeong
  • Publication number: 20190144602
    Abstract: Disclosed is a conjugated polymer for an organic solar cell. The proportion of units containing no alkyl thiophene moieties in the conjugated polymer can vary to make the conjugated polymer suitable for use as an electron-donating organic semiconductor material in a small-area or large-area organic solar cell. Therefore, the use of the conjugated polymer ensures high energy conversion efficiency of the organic solar cell.
    Type: Application
    Filed: October 16, 2018
    Publication date: May 16, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hae Jung Son, Phillip Lee, Jeung-hyun Jeong, Gyoungsik Kim, Sungmin Park, Injeong Shin, Sung-yoon Joe, Ji Yeong Kim
  • Publication number: 20180108795
    Abstract: Provided are a thin-film solar cell module structure and a method of manufacturing the same.
    Type: Application
    Filed: September 15, 2017
    Publication date: April 19, 2018
    Inventors: Jeung-Hyun JEONG, Jong-Keuk PARK, Won Mok KIM, Seung Hee HAN, Doh Kwon LEE
  • Patent number: 9941423
    Abstract: A method for manufacturing a thin film solar cell includes: depositing a transparent first rear electrode on a first surface of a transparent substrate; depositing a second rear electrode having a high-conductive metal on the first rear electrode; performing a first laser scribing process to separate a double layer of the first and second rear electrodes; depositing a light absorption layer having selenium (Se) or sulfur (S) on the second rear electrode; performing a second laser scribing process by inputting a laser to a second surface of the transparent substrate to separate the light absorption layer; depositing a transparent electrode on the light absorption layer; and performing a third laser scribing process by inputting a laser to the second surface to separate the transparent electrode. Accordingly, patterning may be performed in a substrate-incident laser manner to improve price, productivity and precision of the patterning process.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: April 10, 2018
    Assignee: Korea Institute of Science and Technology
    Inventors: Jeung-hyun Jeong, Won Mok Kim, Jong-Keuk Park
  • Publication number: 20160126376
    Abstract: A method for manufacturing a thin film solar cell includes: depositing a transparent first rear electrode on a first surface of a transparent substrate; depositing a second rear electrode having a high-conductive metal on the first rear electrode; performing a first laser scribing process to separate a double layer of the first and second rear electrodes; depositing a light absorption layer having selenium (Se) or sulfur (S) on the second rear electrode; performing a second laser scribing process by inputting a laser to a second surface of the transparent substrate to separate the light absorption layer; depositing a transparent electrode on the light absorption layer; and performing a third laser scribing process by inputting a laser to the second surface to separate the transparent electrode. Accordingly, patterning may be performed in a substrate-incident laser manner to improve price, productivity and precision of the patterning process.
    Type: Application
    Filed: July 20, 2015
    Publication date: May 5, 2016
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung-hyun JEONG, Won Mok KIM, Jong-Keuk PARK
  • Patent number: 8973526
    Abstract: A plasma deposition apparatus includes a cathode assembly including a cathode disk and a water-coolable cathode holder supporting the cathode disk, an anode assembly including a water-coolable anode holder, a substrate mounted on the anode holder to serve as an anode, and a substrate holder mounting and supporting the substrate, and a reactor for applying a potential difference between opposing surfaces of the cathode assembly and the anode assembly under a vacuum state to form plasma of a raw gas. The cathode disk comes into thermal contact with the cathode holder using at least one of a self weight and a vacuum absorption force so as to permit thermal expansion of the cathode disk.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: March 10, 2015
    Assignee: Korea Institute of Science and Technology
    Inventors: Wook Seong Lee, Young Joon BaiK, Jong-Keuk Park, Gyu Weon Hwang, Jeung-hyun Jeong
  • Publication number: 20140326319
    Abstract: The present disclosure relates to a Se or S based thin film solar cell and a method for fabricating the same, which may improve the structural and electrical characteristics of an upper transparent electrode layer by controlling a structure of a lower transparent electrode layer in a thin film solar cell having a Se or S based light absorption layer. In the Se or S based thin film solar cell having a light absorption layer and a front transparent electrode layer, the front transparent electrode layer comprises a lower transparent electrode layer and an upper transparent electrode layer, and the lower transparent electrode layer comprises an oxide-based thin film obtained by blending an impurity element into a mixed oxide in which Zn oxide and Mg oxide are mixed (also, referred to as an ‘impurity-doped Zn—Mg-based oxide thin film’).
    Type: Application
    Filed: July 16, 2013
    Publication date: November 6, 2014
    Inventors: Won Mok KIM, Jin-soo KIM, Jeung-hyun JEONG, Jong-Keuk PARK, Young Joon BAIK
  • Publication number: 20130327387
    Abstract: The present disclosure relates to a Se or S based thin film solar cell and a method for fabricating the same, which may improve crystallinity and electric characteristics of an upper transparent electrode layer (6) by controlling a structure of a lower transparent electrode layer (5?) in a thin film solar cell having a Se or S based light absorption layer. In the Se or S based thin film solar cell according to the present disclosure, the front transparent electrode layer comprises a lower transparent electrode layer (5?) and an upper transparent electrode layer (6), and the lower transparent electrode layer (5?) comprises an amorphous oxide-based thin film.
    Type: Application
    Filed: December 28, 2012
    Publication date: December 12, 2013
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Won Mok KIM, Jin Soo KIM, Jeung Hyun JEONG, Young Joon BAIK, Jong Keuk PARK
  • Publication number: 20130104972
    Abstract: Provided is a Se- or S-based thin film solar cell, including a substrate, a rear electrode formed on the substrate, a light absorbing layer formed on the rear electrode and containing at least one of selenium (Se) and sulfur (S), and an rear electrode top layer. The rear electrode top layer is formed between the rear electrode and the light absorbing layer, and contains a large amount of oxygen (O) to control diffusion of sodium (Na) through the rear electrode to the light absorbing layer. In this manner, it is possible to improve the electrical conductivity and interfacial adhesion of the rear electrode while stimulating diffusion of sodium (Na) to improve the efficiency of a thin film solar cell.
    Type: Application
    Filed: August 1, 2012
    Publication date: May 2, 2013
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung Hyun JEONG, Ju Heon YOON, Won Mok KIM, Young Joon BAIK, Jong Keuk PARK
  • Patent number: 8334027
    Abstract: In the method for depositing a material in the absence of a positive column, a discharge is generated between a cathode and an anode disposed to face each other in a reaction chamber by applying a DC voltage therebetween, and introducing reaction gas into the reaction chamber, thereby depositing a material on a substrate mounted on the anode and serving as a part of the anode, wherein the deposition of the material on the substrate is performed under a state that a cathode glow and an anode glow exist in a form of thin layers coating respectively the surfaces of the cathode and the substrate, while a positive column does not exist or is so small as to be negligible.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: December 18, 2012
    Assignee: Korea Institute of Science and Technology
    Inventors: Wook-Seong Lee, Young-Joon Baik, Jeung-Hyun Jeong, Ki-Woong Chae
  • Patent number: 8247031
    Abstract: Disclosed is a method for growing a thin film, which includes modifying a surface grain size and surface roughness on a thin film to improve the mobility of a carrier and a light scattering effect. The method for growing a thin film includes: forming nuclei of grains having various grain orientations on a substrate; causing first grains having a first specific grain orientation to grow predominantly among the grains having various grain orientations, thereby forming a first preferred texture comprised of the predominantly grown first grains; and then causing second grains having a second grain orientation to grow predominantly, thereby forming a second preferred texture comprised of the predominantly grown second grains, wherein the surface grain size of each of the second grains forming the second texture is larger than that of each of the first grains forming the first texture.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: August 21, 2012
    Assignee: Korea Institute of Science and Technology
    Inventors: Young Joon Baik, Won Mok Kim, Kyeong Seok Lee, Jong-Keuk Park, Jeung-hyun Jeong, Suyoun Lee, Taek Sung Lee
  • Patent number: 8154058
    Abstract: A bio-sensor includes a gate dielectric formed on a silicon semiconductor substrate, a gate electrode of a conductive diamond film formed on the gate dielectric, probe molecules bonded on the gate electrode for detecting biomolecules, and source/drain regions formed on the semiconductor substrate at the sides of the gate electrode. The gate electrode is a comb shape or a lattice shape.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: April 10, 2012
    Assignee: Korea Institute of Science and Technology
    Inventors: Gyu Weon Hwang, Wook Seong Lee, Jeung-hyun Jeong, Jong-Keuk Park, Young Joon Baik