Patents by Inventor Joerk Rimmasch

Joerk Rimmasch 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).

  • Solar cell with chalcopyrite absorber layer
    Patent number: 5626688
    Abstract: A substrate-independent manufacturing method for a solar cell with chalcopyrite absorber layer (4, 5) is proposed wherein a desired alkali content is obtained in the finished absorber layer by dosed addition of Na, K, or Li during the manufacturing process. An additional drive-in of alkali ions from a potentially alkali-containing substrate (1) is prevented by providing a diffusion barrier layer (2) between substrate and absorber layer.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: May 6, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventors: Volker Probst, Joerk Rimmasch, Hauke Harms