Patents by Inventor Stephane Bastide

Stephane Bastide 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).

  • Synthesis of nanoparticles with a closed structure of metal chalcogens having a lamellar crystalographic structure
    Patent number: 7955857
    Abstract: The invention relates to a spray pyrolysis method characterized in that it is used in the synthesis of nanoparticles with a closed structure of metal chalcogens having a lamellar crystalographic structure of general formula MaXb, wherein M represents a metal and X represents a chalcogen, a and b represent the respective proportions of metal and chalcogen, and in that it comprises pyrolysis of a liquid aerosol obtained from a solution of at least one metal precursor (M) and a chalcogen (X), or at least one precursor of said metal (M) and at least one precursor of said chalcogen (X) dissolved in a solvent, said solution being atomized into fine droplets in a suspension in a vector gas.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: June 7, 2011
    Assignee: Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Stéphane Bastide, Claude Levy-Clement, Dominique Duphil, Jean-Pascal Borra
  • Synthesis of nanoparticles with a closed structure of metal chalcogens having a lamellar crystalographic structure and uses thereof
    Publication number: 20070111319
    Abstract: The invention relates to a spray pyrolysis method characterized in that it is used in the synthesis of nanoparticles with a closed structure of metal chalcogens having a lamellar crystalographic structure of general formula MaXb, wherein M represents a metal and X represents a chalcogen, a and b represent the respective proportions of metal and chalcogen, and in that it comprises pyrolysis of a liquid aerosol obtained from a solution of at least one metal precursor (M) and a chalcogen (X), or at least one precursor of said metal (M) and at least one precursor of said chalcogen (X) dissolved in a solvent, said solution being atomized into fine droplets in a suspension in a vector gas.
    Type: Application
    Filed: December 6, 2004
    Publication date: May 17, 2007
    Inventors: Stephane Bastide, Claude Levy-Clement, Dominique Duphil, Jean-Pascal Borra
  • Solar cell including multi-crystalline silicon and a method of texturizing the surface of p-type multi-crystalline silicon
    Patent number: 5949123
    Abstract: A solar cell comprising multi-crystalline silicon or an alloy thereof, having a surface that is to receive light radiation, wherein said silicon surface includes a multi-tude of pits of depth lying in the range 0.10 .mu.m to 10 .mu.m and of diameter lying in the range 0.1 .mu.m to 10 .mu.m, and in which the ratio of said depth to said diameter is greater than 1, the area of said holes occupying more than half the area of said silicon surface.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: September 7, 1999
    Assignee: Photowatt International S.A.
    Inventors: Quang Nam Le, Dominique Sarti, Claude Levy-Clement, Stephane Bastide