Patents by Inventor Elijah J. Thimsen

Elijah J. Thimsen 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).

  • Atomic layer deposition of quaternary chalcogenides
    Patent number: 8741386
    Abstract: Methods and systems are provided for synthesis and deposition of chalcogenides (including Cu2ZnSnS4). Binary compounds, such as metal sulfides, can be deposited by alternating exposures of the substrate to a metal cation precursor and a chalcogen anion precursor with purge steps between.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: June 3, 2014
    Assignee: Uchicago Argonne, LLC
    Inventors: Elijah J. Thimsen, Shannon C. Riha, Alex B. F. Martinson, Jeffrey W. Elam, Michael J. Pellin
  • ATOMIC LAYER DEPOSITION OF QUATERNARY CHALCOGENIDES
    Publication number: 20140093645
    Abstract: Methods and systems are provided for synthesis and deposition of chalcogenides (including Cu2ZnSnS4). Binary compounds, such as metal sulfides, can be deposited by alternating exposures of the substrate to a metal cation precursor and a chalcogen anion precursor with purge steps between.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Inventors: Elijah J. THIMSEN, Shannon C. RIHA, Alex B.F. MARTINSON, Jeffrey W. ELAM, Michael J. PELLIN
  • Process and apparatus for forming nanoparticles using radiofrequency plasmas
    Patent number: 8016944
    Abstract: Methods and apparatus for producing nanoparticles, including single-crystal semiconductor nanoparticles, are provided. The methods include the step of generating a constricted radiofrequency plasma in the presence of a precursor gas containing precursor molecules to form nanoparticles. Single-crystal semiconductor nanoparticles, including photoluminescent silicon nanoparticles, having diameters of no more than 10 nm may be fabricated in accordance with the methods.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: September 13, 2011
    Assignee: Regents of the University of Minnesota
    Inventors: Uwe Kortshagen, Elijah J. Thimsen, Lorenzo Mangolini, Ameya Bapat, David Jurbergs
  • PROCESS AND APPARATUS FOR FORMING NANOPARTICLES USING RADIOFREQUENCY PLASMAS
    Publication number: 20090056628
    Abstract: Methods and apparatus for producing nanoparticles, including single-crystal semiconductor nanoparticles, are provided. The methods include the step of generating a constricted radiofrequency plasma in the presence of a precursor gas containing precursor molecules to form nanoparticles. Single-crystal semiconductor nanoparticles, including photoluminescent silicon nanoparticles, having diameters of no more than 10 nm may be fabricated in accordance with the methods.
    Type: Application
    Filed: November 3, 2008
    Publication date: March 5, 2009
    Inventors: Uwe Kortshagen, Elijah J. Thimsen, Lorenzo Mangolini, Ameya Bapat, David Jurbergs
  • Process and apparatus for forming nanoparticles using radiofrequency plasmas
    Patent number: 7446335
    Abstract: Methods and apparatus for producing nanoparticles, including single-crystal semiconductor nanoparticles, are provided. The methods include the step of generating a constricted radiofrequency plasma in the presence of a precursor gas containing precursor molecules to form nanoparticles. Single-crystal semiconductor nanoparticles, including photoluminescent silicon nanoparticles, having diameters of no more than 10 nm may be fabricated in accordance with the methods.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: November 4, 2008
    Assignee: Regents of the University of Minnesota
    Inventors: Uwe Kortshagen, Elijah J. Thimsen, Lorenzo Mangolini, Ameya Bapat, David Jurbergs