Patents by Inventor Jih-Jen Wu

Jih-Jen Wu 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: 20200185705
    Abstract: An electrode structure includes a mesh substrate and a nanomaterial. The nanomaterial contains oxide of group IVA element and grows on the mesh substrate. A method of manufacturing the electrode structure and a rechargeable battery including the electrode structure are also provided.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 11, 2020
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Jih-Jen WU, Huei Lian CHEN
  • Patent number: 9287422
    Abstract: The present invention discloses a solar cell having a multi-layered structure that is used to generate, transport, and collect electric charges. The multi-layered nanostructure comprises a cathode, a conducting metal layer, a photo-active layer, a hole-transport layer, and an anode. The photo-active layer comprises a tree-like nanostructure array and a conjugate polymer filler. The tree-like nanostructure array is used as an electron acceptor while the conjugate polymer filler is as an electron donor. The tree-like nanostructure array comprises a trunk part and a branch part. The trunk part is formed in-situ on the surface of the conducting metal layer and is used to provide a long straight transport pathway to transport electrons. The large contact area between the branch part and the conjugate polymer filler provides electron-hole separation.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: March 15, 2016
    Assignee: NATIONAL TAIWAN UNIVERSITY
    Inventors: Wei-Fang Su, Chun-Wei Chen, Jih-Jen Wu, Yun-Yue Lin
  • Patent number: 9269840
    Abstract: The present invention discloses a solar cell having a multi-layered structure that is used to generate, transport, and collect electric charges. The multi-layered nanostructure comprises a cathode, a conducting metal layer, a photo-active layer, a hole-transport layer, and an anode. The photo-active layer comprises a tree-like nanostructure array and a conjugate polymer filler. The tree-like nanostructure array is used as an electron acceptor while the conjugate polymer filler is as an electron donor. The tree-like nanostructure array comprises a trunk part and a branch part. The trunk part is formed in-situ on the surface of the conducting metal layer and is used to provide a long straight transport pathway to transport electrons. The large contact area between the branch part and the conjugate polymer filler provides electron-hole separation.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: February 23, 2016
    Assignee: NATIONAL TAIWAN UNIVERSITY
    Inventors: Wei-Fang Su, Chun-Wei Chen, Jih-Jen Wu, Yun-Yue Lin
  • Patent number: 9214288
    Abstract: A flexible photo-anode of dye-sensitized solar cell and a manufacturing method thereof are provided. The method includes steps of: coating zinc oxide nanoparticles on a flexible substrate to form a seed layer; immersing the flexible substrate into a first reaction solution; heating the seed layer to form a zinc oxide nanowire array; cooling the flexible substrate to the room temperature, immersing it into the second reaction solution, and stirring the second reaction solution, so that the zinc oxide nanowire array forms a cactus-like structure. Thus, the sintering and embossing processes can be prevented.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: December 15, 2015
    Assignee: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Jih-Jen Wu, Geng-Jia Chang, Shou-Yen Lin, Chun-te Wu, Jen-Sue Chen
  • Publication number: 20150059844
    Abstract: A flexible photo-anode of dye-sensitized solar cell and a manufacturing method thereof are provided. The method includes steps of: coating zinc oxide nanoparticles on a flexible substrate to form a seed layer; immersing the flexible substrate into a first reaction solution; heating the seed layer to form a zinc oxide nanowire array; cooling the flexible substrate to the room temperature, immersing it into the second reaction solution, and stirring the second reaction solution, so that the zinc oxide nanowire array forms a cactus-like structure. Thus, the sintering and embossing processes can be prevented.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Jih-Jen WU, Geng-Jia CHANG, Shou-Yen LIN, Chun-te WU, Jen-Sue CHEN
  • Patent number: 8821967
    Abstract: A method for manufacturing an oxide thin film comprises: providing a coating material composed of a first precursor material, a fuel material and a solvent; coating the coating material on a substrate; and annealing the coated coating material on the substrate to convert the coated coating material into an oxide thin film.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: September 2, 2014
    Assignee: National Cheng Kung University
    Inventors: Jih-Jen Wu, Wei-Ting Wu, Ching-Mei Wang, Jen-Sue Chen
  • Patent number: 8743447
    Abstract: An electrochromic device is provided. The electrochromic device includes a first substrate, an electrochromic layer, an electrode, an electrolyte layer and a second substrate. The electrochromic layer is formed on the first substrate, the electrode is disposed on the electrochromic layer, and the electrolyte layer is disposed between the electrode and the second substrate.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: June 3, 2014
    Assignee: National Cheng Kung University
    Inventors: Jen-Sue Chen, Wei-Ting Wu, Jih-Jen Wu, Kun-Keng Chiang
  • Patent number: 8502068
    Abstract: The present invention discloses a solar cell having a multi-layered structure that is used to generate, transport, and collect electric charges. The multi-layered nanostructure comprises a cathode, a conducting metal layer, a photo-active layer, a hole-transport layer, and an anode. The photo-active layer comprises a tree-like nanostructure array and a conjugate polymer filler. The tree-like nanostructure array is used as an electron acceptor while the conjugate polymer filler is as an electron donor. The tree-like nanostructure array comprises a trunk part and a branch part. The trunk part is formed in-situ on the surface of the conducting metal layer and is used to provide a long straight transport pathway to transport electrons. The large contact area between the branch part and the conjugate polymer filler provides electron-hole separation.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: August 6, 2013
    Assignee: National Taiwan University
    Inventors: Wei-Fang Su, Chun-Wei Chen, Jih-Jen Wu, Yun-Yue Lin
  • Publication number: 20120214274
    Abstract: The present invention discloses a solar cell having a multi-layered structure that is used to generate, transport, and collect electric charges. The multi-layered nanostructure comprises a cathode, a conducting metal layer, a photo-active layer, a hole-transport layer, and an anode. The photo-active layer comprises a tree-like nanostructure array and a conjugate polymer filler. The tree-like nanostructure array is used as an electron acceptor while the conjugate polymer filler is as an electron donor. The tree-like nanostructure array comprises a trunk part and a branch part. The trunk part is formed in-situ on the surface of the conducting metal layer and is used to provide a long straight transport pathway to transport electrons. The large contact area between the branch part and the conjugate polymer filler provides electron-hole separation.
    Type: Application
    Filed: May 3, 2012
    Publication date: August 23, 2012
    Applicant: National Taiwan University
    Inventors: WEI-FANG SU, CHUN-WEI CHEN, JIH-JEN WU, YUN-YUE LIN
  • Publication number: 20120211070
    Abstract: The present invention discloses a solar cell having a multi-layered structure that is used to generate, transport, and collect electric charges. The multi-layered nanostructure comprises a cathode, a conducting metal layer, a photo-active layer, a hole-transport layer, and an anode. The photo-active layer comprises a tree-like nanostructure array and a conjugate polymer filler. The tree-like nanostructure array is used as an electron acceptor while the conjugate polymer filler is as an electron donor. The tree-like nanostructure array comprises a trunk part and a branch part. The trunk part is formed in-situ on the surface of the conducting metal layer and is used to provide a long straight transport pathway to transport electrons. The large contact area between the branch part and the conjugate polymer filler provides electron-hole separation.
    Type: Application
    Filed: April 26, 2012
    Publication date: August 23, 2012
    Applicant: National Taiwan University
    Inventors: WEI-FANG SU, CHUN-WEI CHEN, JIH-JEN WU, YUN-YUE LIN
  • Publication number: 20120208316
    Abstract: The present invention discloses a solar cell having a multi-layered structure that is used to generate, transport, and collect electric charges. The multi-layered nanostructure comprises a cathode, a conducting metal layer, a photo-active layer, a hole-transport layer, and an anode. The photo-active layer comprises a tree-like nanostructure array and a conjugate polymer filler. The tree-like nanostructure array is used as an electron acceptor while the conjugate polymer filler is as an electron donor. The tree-like nanostructure array comprises a trunk part and a branch part. The trunk part is formed in-situ on the surface of the conducting metal layer and is used to provide a long straight transport pathway to transport electrons. The large contact area between the branch part and the conjugate polymer filler provides electron-hole separation.
    Type: Application
    Filed: April 26, 2012
    Publication date: August 16, 2012
    Applicant: National Taiwan University
    Inventors: WEI-FANG SU, Chun-Wei Chen, Jih-Jen Wu, Yun-Yue Lin
  • Patent number: 8238016
    Abstract: A photovoltachromic device includes a photoelectrode, a counter electrode electrically connected to the photoelectrode, and an electrolyte layer disposed between the photoelectrode and the counter electrode. The photoelectrode includes a first transparent electrode, an electron-transport layer disposed on the first transparent electrode, and a sensitizing layer disposed on the electron-transport layer. The counter electrode includes a second transparent electrode and an electrochromic layer disposed on the second transparent electrode. The second transparent electrode contacts both of the electrolyte layer and the electrochromic layer thereby accelerating the response times for coloring and bleaching the photovoltachromic device.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: August 7, 2012
    Assignee: National Cheng Kung University
    Inventors: Jih-Jen Wu, Min-Da Hsieh, Wen-Pin Liao, Wei-Ting Wu, Jen-Sue Chen, Jow-Lay Huang
  • Publication number: 20120176660
    Abstract: An electrochromic device is provided. The electrochromic device includes a first substrate, an electrochromic layer, an electrode, an electrolyte layer and a second substrate. The electrochromic layer is formed on the first substrate, the electrode is disposed on the electrochromic layer, and the electrolyte layer is disposed between the electrode and the second substrate.
    Type: Application
    Filed: January 9, 2012
    Publication date: July 12, 2012
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Jen-Sue Chen, Wei-Ting Wu, Jih-Jen Wu, Kun-Keng Chiang
  • Patent number: 8198531
    Abstract: The present invention discloses a solar cell having a multi-layered structure that is used to generate, transport, and collect electric charges. The multi-layered nanostructure comprises a cathode, a conducting metal layer, a photo-active layer, a hole-transport layer, and an anode. The photo-active layer comprises a tree-like nanostructure array and a conjugate polymer filler. The tree-like nanostructure array is used as an electron acceptor while the conjugate polymer filler is as an electron donor. The tree-like nanostructure array comprises a trunk part and a branch part. The trunk part is formed in-situ on the surface of the conducting metal layer and is used to provide a long straight transport pathway to transport electrons. The large contact area between the branch part and the conjugate polymer filler provides electron-hole separation.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: June 12, 2012
    Assignee: National Taiwan University
    Inventors: Wei-Fan Su, Chun-Wei Chen, Jih-Jen Wu, Yun-Yue Lin
  • Publication number: 20120082782
    Abstract: A method for manufacturing an oxide thin film comprises: providing a coating material composed of a first precursor material, a fuel material and a solvent; coating the coating material on a substrate; and annealing the coated coating material on the substrate to convert the coated coating material into an oxide thin film.
    Type: Application
    Filed: April 8, 2011
    Publication date: April 5, 2012
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Jih-Jen Wu, Wei-Ting Wu, Ching-Mei Wang, Jen-Sue Chen
  • Publication number: 20100259811
    Abstract: A photovoltachromic device includes a photoelectrode, a counter electrode electrically connected to the photoelectrode, and an electrolyte layer disposed between the photoelectrode and the counter electrode. The photoelectrode includes a first transparent electrode, an electron-transport layer disposed on the first transparent electrode, and a sensitizing layer disposed on the electron-transport layer. The counter electrode includes a second transparent electrode and an electrochromic layer disposed on the second transparent electrode. The second transparent electrode contacts both of the electrolyte layer and the electrochromic layer thereby accelerating the response times for coloring and bleaching the photovoltachromic device.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 14, 2010
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Jih-Jen WU, Min-Da HSIEH, Wen-Pin LIAO, Wei-Ting WU, Jen-Sue CHEN, Jow-Lay HUANG
  • Patent number: 7812526
    Abstract: A lithium aluminum oxide (LiAlO2) substrate suitable for a zinc oxide (ZnO) buffer layer is found. The ZnO buffer layer is grown on the LiAlO2 substrate. Because the LiAlO2 substrate has a similar structure to that of the ZnO buffer layer, a quantum confined stark effect (QCSE) is effectively eliminated. And a photoelectrical device made with the present invention, like a light emitting diode, a piezoelectric material or a laser diode, thus obtains an enhanced light emitting efficiency.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: October 12, 2010
    Assignee: National Sun Yat-sen University
    Inventors: Mitch M. C. Chou, Jih-Jen Wu, Wen-Ching Hsu
  • Publication number: 20090038677
    Abstract: The present invention discloses a solar cell having a multi-layered structure that is used to generate, transport, and collect electric charges. The multi-layered nanostructure comprises a cathode, a conducting metal layer, a photo-active layer, a hole-transport layer, and an anode. The photo-active layer comprises a tree-like nanostructure array and a conjugate polymer filler. The tree-like nanostructure array is used as an electron acceptor while the conjugate polymer filler is as an electron donor. The tree-like nanostructure array comprises a trunk part and a branch part. The trunk part is formed in-situ on the surface of the conducting metal layer and is used to provide a long straight transport pathway to transport electrons. The large contact area between the branch part and the conjugate polymer filler provides electron-hole separation.
    Type: Application
    Filed: April 21, 2008
    Publication date: February 12, 2009
    Applicant: NATIONAL TAIWAN UNIVERSITY
    Inventors: Wei-Fang Su, Chun-Wei Chen, Jih-Jen Wu, Yun-Yue Lin
  • Publication number: 20080233415
    Abstract: A lithium aluminum oxide (LiAlO2) substrate suitable for a zinc oxide (ZnO) buffer layer is found. The ZnO buffer layer is grown on the LiAlO2 substrate. Because the LiAlO2 substrate has a similar structure to that of the ZnO buffer layer, a quantum confined stark effect (QCSE) is effectively eliminated. And a photoelectrical device made with the present invention, like a light emitting diode, a piezoelectric material or a laser diode, thus obtains an enhanced light emitting efficiency.
    Type: Application
    Filed: June 11, 2007
    Publication date: September 25, 2008
    Applicants: National Sun Yat-sen University, Sino American Silicon Products Inc.
    Inventors: Mitch M. C. Chou, Jih-Jen Wu, Wen-Ching Hsu
  • Publication number: 20080233671
    Abstract: A light emitting diode (LED) is made. The LED had a LiAlO2 substrate and a GaN layer. Between them, there is a zinc oxide (ZnO) layer. Because GaN and ZnO have a similar. Wurtzite structure, GaN can easily grow on ZnO. By using the ZnO layer, the GaN layer is successfully grown as a single crystal thin film on the LiAlO2 substrate. Thus, GaN defect density is reduced and lattice match is obtained to have a good crystal interface quality and an enhanced light emitting efficiency of a device thus made.
    Type: Application
    Filed: June 11, 2007
    Publication date: September 25, 2008
    Applicants: National Sun Yat-sen University, Sino American Silicon Products Inc.
    Inventors: Mitch M. C. Chou, Jih-Jen Wu, Wen-Ching Hsu