Patents by Inventor Sarah E. Asher

Sarah E. Asher 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).

  • ZnO/Cu(InGa)Sesolar cells prepared by vapor phase Zn doping
    Patent number: 7179677
    Abstract: A process for making a thin film ZnO/Cu(InGa)Se2 solar cell without depositing a buffer layer and by Zn doping from a vapor phase, comprising: depositing Cu(InGa)Se2 layer on a metal back contact deposited on a glass substrate; heating the Cu(InGa)Se2 layer on the metal back contact on the glass substrate to a temperature range between about 100° C. to about 250° C.; subjecting the heated layer of Cu(InGa)Se2 to an evaporant species from a Zn compound; and sputter depositing ZnO on the Zn compound evaporant species treated layer of Cu(InGa)Se2.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: February 20, 2007
    Assignee: Midwest Research Institute
    Inventors: Kannan Ramanathan, Falah S. Hasoon, Sarah E. Asher, James Dolan, James C. Keane