Patents by Inventor Elmar Lohmuller

Elmar Lohmuller 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).

  • Publication number: 20150243804
    Abstract: A photovoltaic solar cell with a front face designed for coupling light, including at least one cutout (4) extending from the front face to the rear face in the semiconductor substrate (1) of a base doping type, at least one metal feedthrough structure (10), wherein the feedthrough structure (10) is guided in the cutout (4) from the front face to the rear face of the semiconductor substrate and is connected in an electrically conductive manner to the metal front face contact structure (9), which is connected in an electrically conductive manner to an emitter region (2) of the opposite doping to the base doping type, formed on the front face, and at least one rear face contact structure (7), which is connected to the feedthrough structure (10) in an electrically conductive manner and is arranged on the electrically insulating insulation layer (6) on the rear face and covers the isolation layer at least in the regions surrounding the recess (4), and therefore the rear face contact structure (7) is electrically
    Type: Application
    Filed: September 12, 2013
    Publication date: August 27, 2015
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FĂ–RDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Benjamin Thaidigsmann, Elmar Lohmuller, Florian Clement, Andreas Wolf, Daniel Biro, Ralf Preu