Patents by Inventor Duck Young Chung

Duck Young Chung 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: 20230294993
    Abstract: Inorganic compounds having the formula LiMP2Q6, where M is Ga, In, Bi, Sb, As, Al, or a combination thereof, and Q is S and/or Se, are provided. Methods and devices for detecting incident neutrons and alpha-particles using the compounds are also provided. For thermal neutron detection applications, the compounds can be enriched with lithium-6 isotope (6Li) to enhance their neutron detecting capabilities.
    Type: Application
    Filed: May 2, 2023
    Publication date: September 21, 2023
    Inventors: Mercouri G. KANATZIDIS, Daniel G. CHICA, Yihui HE, Duck Young CHUNG
  • Publication number: 20230203372
    Abstract: Inorganic perovskites doped with oxygen atoms or fluorine atoms, methods for making the doped perovskites, and hard radiation detectors incorporating the doped perovskites as photoactive layers are provided. The doped perovskites utilize lead oxide, lead fluoride, or compounds that thermally decompose into lead oxide or lead fluoride as dopant atom sources. During the crystallization of a perovskite in the presence of the dopant atom sources, oxygen or fluoride atoms from the dopant source are incorporated into the perovskite crystal lattice.
    Type: Application
    Filed: May 5, 2021
    Publication date: June 29, 2023
    Inventors: Wenwen Lin, Duck Young Chung, Mercouri G. Kanatzidis
  • Patent number: 11679980
    Abstract: Inorganic compounds having the formula LiMP2Q6, where M is Ga, In, Bi, Sb, As, Al, or a combination thereof, and Q is S and/or Se, are provided. Methods and devices for detecting incident neutrons and alpha-particles using the compounds are also provided. For thermal neutron detection applications, the compounds can be enriched with lithium-6 isotope (6Li) to enhance their neutron detecting capabilities.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 20, 2023
    Assignees: Northwestern University, UChicago Argonne, LLC
    Inventors: Mercouri G. Kanatzidis, Daniel G. Chica, Yihui He, Duck Young Chung
  • Publication number: 20210206638
    Abstract: Inorganic compounds having the formula LiMP2Q6, where M is Ga, In, Bi, Sb, As, Al, or a combination thereof, and Q is S and/or Se, ar provided. Methods and devices for detecting incident neutrons and alpha-particles using the compounds are also provided. For thermal neutron detection applications, the compounds can be enriched with lithium-6 isotope (Li) to enhance their neutron detecting capabilities.
    Type: Application
    Filed: June 19, 2019
    Publication date: July 8, 2021
    Inventors: Mercouri G. Kanatzidis, Daniel G. Chica, Yihui He, Duck Young Chung
  • Patent number: 7952015
    Abstract: The invention relates to a thermoelectrically active p- or n-conductive semiconductor material constituted by a compound of the general formula (I) (PbTe)1?x(Sn2±ySb2±zTe5)x??(I) with 0.0001?x?0.5, 0?y<2 and 0?z<2, wherein 0 to 10% by weight of the compound may be replaced by other metals or metal compounds, wherein the semiconductor material has a Seebeck coefficient of at least |S|?60 ?V/K at a temperature of 25° C. and electrical conductivity of at least 150 S/cm and power factor of at least 5 ?W/(cm·K2), further relates to a process for the preparation of such semiconductor materials, as well as to generators and Peltier arrangements containing them.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: May 31, 2011
    Assignee: Board of Trustees of Michigan State University
    Inventors: Hans-Josef Sterzel, Klaus Kuehling, Mercouri G. Kanatzidis, Duck-Young Chung
  • Patent number: 7326851
    Abstract: A thermoelectrically active p- or n-conductive semiconductor material is constituted by a ternary compound of the general formula (I) (Pb1-xGex)Te??(I) with x value from 0.16 to 0.5, wherein 0 to 10% by weight of the ternary compound may be replaced by other metals or metal compounds, wherein the semiconductor material has a Seebeck coefficient of at least ±200 ?V/K at a temperature of 25° C.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: February 5, 2008
    Assignees: BASF Aktiengesellschaft, Michigan State University
    Inventors: Hans-Josef Sterzel, Klaus Kühling, Mercouri G. Kanatzidis, Duck-Young Chung
  • Publication number: 20070227577
    Abstract: The invention relates to a thermoelectrically active p- or n-conductive semiconductor material constituted by a compound of the general formula (I) (PbTe)1-x(Sn2±ySb2±zTe5)x ??(I) with 0.0001?x?0.5, 0?y<2 and 0?z<2, wherein 0 to 10% by weight of the compound may be replaced by other metals or metal compounds, wherein the semiconductor material has a Seebeck coefficient of at least |S|?60 ?V/K at a temperature of 25° C. and electrical conductivity of at least 150 S/cm and power factor of at least 5 ?W/(cm·K2), further relates to a process for the preparation of such semiconductor materials, as well as to generators and Peltier arrangements containing them.
    Type: Application
    Filed: March 30, 2006
    Publication date: October 4, 2007
    Applicants: BASF Aktiengesellschaft, Michigan State University
    Inventors: Hans-Josef Sterzel, Klaus Kuehling, Mercouri Kanatzidis, Duck-Young Chung
  • Publication number: 20040200519
    Abstract: A thermoelectrically active p- or n-conductive semiconductor material is constituted by a ternary compound of the general formula (I)
    Type: Application
    Filed: April 11, 2003
    Publication date: October 14, 2004
    Inventors: Hans-Josef Sterzel, Klaus Kuhling, Mercouri G. Kanatzidis, Duck-Young Chung
  • Patent number: 6312617
    Abstract: A family of isostructural compounds have been prepared having the general formula AnPbmBinQ2n+m. These compounds possess a NaCl lattice type structure as well as low thermal conductivity and controlled electrical conductivity. Furthermore, the electrical properties can be controlled by varying the values for n and m. These isostructural compounds can be used for semiconductor applications such as detectors, lasers and photovoltaic cells. These compounds also have enhanced thermoelectric properties making them excellent semiconductor materials for fabrication of thermoelectric devices.
    Type: Grant
    Filed: October 11, 1999
    Date of Patent: November 6, 2001
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Mercouri G. Kanatzidis, Duck Young Chung, Stephane DeNardi, Sandrine Sportouch
  • Patent number: 6013204
    Abstract: A series of alkali metal bismuth or bismuth and antimony, antimony chalcogenides (Te or S) are described. The compounds have a unique combination electrical properties.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: January 11, 2000
    Assignees: Board of Trustees Operating Michigan State University, Northwestern University
    Inventors: Mercouri G. Kanatzidis, Duck Young Chung, Carl R. Kannewurf, Tim Hogan, Lykourgos Iordanidis
  • Patent number: RE39640
    Abstract: A family of isostructural compounds have been prepared having the general formula AnPbmBinO2n+m. These compounds possess a NaCl lattice type structure as well as low thermal conductivity and controlled electrical conductivity. Furthermore, the electrical properties can be controlled by varying the values for n and m. These isostructural compounds can be used for semiconductor applications such as detectors, lasers and photovoltaic cells. These compounds also have enhanced thermoelectric properties making them excellent semiconductor materials for fabrication of thermoelectric devices.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: May 22, 2007
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Mercouri G. Kanatzidis, Duck-Young Chung, Stephane DeNardi, Sandrine Sportouch