Patents by Inventor Shannon Fields

Shannon Fields 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).

  • Formation of Selenide, Sulfide or Mixed Selenide-Sulfide Films on Metal or Metal Coated Substrates
    Publication number: 20120213933
    Abstract: A method of forming a metal-coated substrate having a CuInGaR2 film on a surface of the metal coating is performed in such a manner that reaction of the metal with Se is substantially prevented, wherein R is Se or a combination of Se and S and wherein the metal is selected from the group consisting of Mo, W, Cr, Ta, Nb, V and Ti. The method includes the steps of: providing a precursor film on the surface of the metal coating, wherein the metal coating contains oxygen in an amount sufficient to inhibit reaction of the metal with Se; and selenizing the precursor film; wherein said selenizing is limited to providing only that amount of Se required to form the CuInGaR2 film.
    Type: Application
    Filed: April 30, 2012
    Publication date: August 23, 2012
    Inventors: Erten Eser, Shannon Fields
  • Formation of selenide, sulfide or mixed selenide-sulfide films on metal or metal coated substrates
    Patent number: 8168256
    Abstract: A process and composition for preventing cracking in composite structures comprising a metal coated substrate and a selenide, sulfide or mixed selenide sulfide film. Specifically, cracking is prevented in the coating of molybdenum coated substrates upon which a copper, indium-gallium diselenide (CIGS) film is deposited. Cracking is inhibited by adding a Se passivating amount of oxygen to the Mo and limiting the amount of Se deposited on the Mo coating.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: May 1, 2012
    Inventors: Erten Eser, Shannon Fields
  • FORMATION OF SELENIDE, SULFIDE OR MIXED SELENIDE-SULFIDE FILMS ON METAL OR METAL COATED SUBSTRATES
    Publication number: 20110272787
    Abstract: A composition for preventing cracking in composite structures comprising a metal coated substrate and a selenide, sulfide or mixed selenidesulfide film. Specifically, cracking is prevented in the coating of molybdenum coated substrates upon which a copper, indium-gallium diselenide (CIGS) film is deposited. Cracking is inhibited by adding a Se passivating amount of oxygen to the Mo and limiting the amount of Se deposited on the Mo coating.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 10, 2011
    Applicant: University of Delaware
    Inventors: Erten Eser, Shannon Fields
  • Formation of Selenide, Sulfide or Mixed Selenide-Sulfide Films on Metal or Metal Coated Substrates
    Publication number: 20090017207
    Abstract: A process and composition for preventing cracking in composite structures comprising a metal coated substrate and a selenide, sulfide or mixed selenide sulfide film. Specifically, cracking is prevented in the coating of molybdenum coated substrates upon which a copper, indium-gallium diselenide (CIGS) film is deposited. Cracking is inhibited by adding a Se passivating amount of oxygen to the Mo and limiting the amount of Se deposited on the Mo coating.
    Type: Application
    Filed: October 21, 2005
    Publication date: January 15, 2009
    Applicant: UNIVERSITY OF DELAWARE
    Inventors: Erten Eser, Shannon Fields