Patents by Inventor Alexander TU

Alexander TU 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).

  • Methods to improve the quantum yield of indium phosphide quantum dots
    Patent number: 12049582
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures using in situ prepared zinc dioleate and/or a metal halide. The nanostructures have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are nanostructures prepared using the methods. And, nanostructure films and molded articles comprising the nanostructures are also provided.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: July 30, 2024
    Assignee: SHOEI CHEMICAL INC.
    Inventors: Yeewah Annie Chow, Jason Hartlove, Charles Hotz, Chunming Wang, Wenzhou Guo, Ilan Jen-La Plante, Jason Travis Tillman, John J. Curley, Christian Ippen, Alexander Tu, Ke Gong, Minghu Tu
  • METHOD TO IMPROVE PERFORMANCE OF DEVICES COMPRISING NANOSTRUCTURES
    Publication number: 20240101897
    Abstract: The invention is in the field of nanostructure synthesis. Provided are highly luminescent core/shell nanostructures with zinc fluoride and zinc acetate bound to their surface. Also provided are methods of preparing the nanostructures, films comprising the nanostructures, and devices comprising the nanostructures.
    Type: Application
    Filed: March 15, 2023
    Publication date: March 28, 2024
    Applicant: Nanosys, Inc.
    Inventors: Daekyoung KIM, Wenzhou GUO, Alexander TU, Yeewah Annie CHOW, Diego BARRERA, Christian IPPEN, Benjamin NEWMEYER, Ruiqing MA
  • SMALL MOLECULE PASSIVATION OF QUANTUM DOTS FOR INCREASED QUANTUM YIELD
    Publication number: 20230272276
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides nanostructure compositions comprising (a) at least one population of nanostructures; (b) at least one metal halide bound to the surface of the nanostructures; and (c) at least one metal carboxylate bound to the surface of the nanostructures. The nanostructure compositions have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are methods of preparing the nanostructure compositions. And, nanostructure films and molded articles comprising the nanostructure compositions are also provided.
    Type: Application
    Filed: January 9, 2023
    Publication date: August 31, 2023
    Applicant: Nanosys, Inc.
    Inventors: llan JEN-LA PLANTE, Yeewah Annie Chow, John J. Curley, Wenzhou Guo, Alexander Tu, Chunming Wang
  • Method to improve performance of devices comprising nanostructures
    Patent number: 11634629
    Abstract: The invention is in the field of nanostructure synthesis. Provided are highly luminescent core/shell nanostructures with zinc fluoride and zinc acetate bound to their surface. Also provided are methods of preparing the nanostructures, films comprising the nanostructures, and devices comprising the nanostructures.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: April 25, 2023
    Assignee: Nanosys, Inc.
    Inventors: Daekyoung Kim, Wenzhou Guo, Alexander Tu, Yeewah Annie Chow, Diego Barrera, Christian Ippen, Benjamin Newmeyer, Ruiqing Ma
  • Small molecule passivation of quantum dots for increased quantum yield
    Patent number: 11549058
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides nanostructure compositions comprising (a) at least one population of nanostructures; (b) at least one metal halide bound to the surface of the nanostructures; and (c) at least one metal carboxylate bound to the surface of the nanostructures. The nanostructure compositions have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are methods of preparing the nanostructure compositions. And, nanostructure films and molded articles comprising the nanostructure compositions are also provided.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: January 10, 2023
    Assignee: Nanosys, Inc.
    Inventors: Ilan Jen-La Plante, Yeewah Annie Chow, John J. Curley, Wenzhou Guo, Alexander Tu, Chunming Wang
  • Methods for synthesis of inorganic nanostructures using molten salt chemistry
    Patent number: 11053439
    Abstract: The invention relates to highly luminescent nanostructures with strong blue light absorbance, particularly core/shell nanostructures comprising an In(1-x)GaxP core and ZnSe and/or ZnS shell layers, wherein 0<x<1. The invention also relates to methods of producing such nanostructures.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: July 6, 2021
    Assignee: NANOSYS, INC.
    Inventors: John J. Curley, Alexander Tu, Wenzhou Guo, Chunming Wang, Christian Ippen, Charles Hotz
  • METHOD TO IMPROVE PERFORMANCE OF DEVICES COMPRISING NANOSTRUCTURES
    Publication number: 20210013377
    Abstract: The invention is in the field of nanostructure synthesis. Provided are highly luminescent core/shell nanostructures with zinc fluoride and zinc acetate bound to their surface. Also provided are methods of preparing the nanostructures, films comprising the nanostructures, and devices comprising the nanostructures.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 14, 2021
    Applicant: Nanosys, Inc.
    Inventors: Daekyoung KIM, Wenzhou GUO, Alexander TU, Yeewah Annie CHOW, Diego BARRERA, Christian IPPEN, Benjamin NEWMEYER, Ruiqing MA
  • METHODS FOR SYNTHESIS OF INORGANIC NANOSTRUCTURES USING MOLTEN SALT CHEMISTRY
    Publication number: 20200325395
    Abstract: The invention relates to highly luminescent nanostructures with strong blue light absorbance, particularly core/shell nanostructures comprising an In(1-x)GaxP core and ZnSe and/or ZnS shell layers, wherein 0<x<1. The invention also relates to methods of producing such nanostructures.
    Type: Application
    Filed: February 5, 2020
    Publication date: October 15, 2020
    Applicant: NANOSYS, INC.
    Inventors: John J. CURLEY, Alexander TU, Wenzhou GUO, Chunming WANG, Christian IPPEN, Charles HOTZ
  • METHODS TO IMPROVE THE QUANTUM YIELD OF INDIUM PHOSPHIDE QUANTUM DOTS
    Publication number: 20200325396
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides methods of preparing nanostructures using in situ prepared zinc dioleate and/or a metal halide. The nanostructures have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are nanostructures prepared using the methods. And, nanostructure films and molded articles comprising the nanostructures are also provided.
    Type: Application
    Filed: April 14, 2020
    Publication date: October 15, 2020
    Applicant: Nanosys, Inc.
    Inventors: Yeewah Annie CHOW, Jason HARTLOVE, Charles HOTZ, Chunming WANG, Wenzhou GUO, Ilan JEN-LA PLANTE, Jason Travis TILLMAN, John J. CURLEY, Christian IPPEN, Alexander TU, Ke GONG, Minghu TU
  • SMALL MOLECULE PASSIVATION OF QUANTUM DOTS FOR INCREASED QUANTUM YIELD
    Publication number: 20200239769
    Abstract: This disclosure pertains to the field of nanotechnology. The disclosure provides nanostructure compositions comprising (a) at least one population of nanostructures; (b) at least one metal halide bound to the surface of the nanostructures; and (c) at least one metal carboxylate bound to the surface of the nanostructures. The nanostructure compositions have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are methods of preparing the nanostructure compositions. And, nanostructure films and molded articles comprising the nanostructure compositions are also provided.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Applicant: Nanosys, Inc.
    Inventors: Ilan JEN-LA PLANTE, Yeewah Annie CHOW, John J. CURLEY, Wenzhou GUO, Alexander TU, Chunming WANG
  • THIN SHELL QUANTUM DOTS FOR ENHANCED BLUE LIGHT ABSORPTION
    Publication number: 20200243713
    Abstract: The invention is in the field of nanostructure synthesis. Provided are highly luminescent nanostructures, particularly highly luminescent quantum dots, comprising a nanocrystal core and at least two thin shell layers. The nanostructures may have additional shell layers. Also provided are methods of preparing the nanostructures, films comprising the nanostructures, and devices comprising the nanostructures.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Applicant: Nanosys, Inc.
    Inventors: Christopher SUNDERLAND, Ilan JEN-LA PLANTE, Alexander TU, Chunming WANG, Wenzhou GUO