Patents by Inventor Alexandre William WALKER

Alexandre William WALKER 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).

  • Stacked integrated multi-junction solar cell
    Patent number: 10490683
    Abstract: A stacked integrated multi-junction solar cell, having a first subcell, whereby the first subcell has a layer of an InGaP compound with a first lattice constant and a first band gap energy, and the thickness of the layer is greater than 100 nm and the layer is formed as part of an emitter and/or as part of the base and/or as part of the space charge region lying between the emitter and base, and a second subcell with a second lattice constant and a second band gap energy, and a third subcell with a third lattice constant and a third band gap energy, and a fourth subcell with a fourth lattice constant and a fourth band gap energy, and a region with a wafer bond is formed between two subcells.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: November 26, 2019
    Assignee: Azur Space Solar Power GmbH
    Inventors: Wolfgang Guter, Gerhard Strobl, Frank Dimroth, Alexandre William Walker
  • STACKED INTEGRATED MULTI-JUNCTION SOLAR CELL
    Publication number: 20160118524
    Abstract: A stacked integrated multi-junction solar cell, having a first subcell, whereby the first subcell has a layer of an InGaP compound with a first lattice constant and a first band gap energy, and the thickness of the layer is greater than 100 nm and the layer is formed as part of an emitter and/or as part of the base and/or as part of the space charge region lying between the emitter and base, and a second subcell with a second lattice constant and a second band gap energy, and a third subcell with a third lattice constant and a third band gap energy, and a fourth subcell with a fourth lattice constant and a fourth band gap energy, and a region with a wafer bond is formed between two subcells.
    Type: Application
    Filed: October 23, 2015
    Publication date: April 28, 2016
    Applicants: AZUR SPACE Solar Power GmbH, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Wolfgang GUTER, Gerhard STROBL, Frank DIMROTH, Alexandre William WALKER