Patents by Inventor Sara R. Joslin

Sara R. Joslin 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).

  • Reduced band gap absorber for solar cells
    Patent number: 10069026
    Abstract: Methods and apparatuses for a dual heterojunction multijunction solar cell are disclosed. A method in accordance with the present invention comprises growing a base material for a solar cell, growing at least one dual heterojunction on the base material, and growing an emitter on the at least one dual heterojunction. An apparatus in accordance with the present invention comprises a substrate, and a first subcell, coupled to the substrate, wherein the first subcell comprises a base region, coupled to the substrate, an emitter region, and at least one dual heterojunction, coupled between the base region and the emitter region, wherein the at least one dual heterojunction has a lower bandgap than the emitter region.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: September 4, 2018
    Assignee: The Boeing Company
    Inventors: Christopher M. Fetzer, Dmitri D. Krut, David E. Joslin, Sara R. Joslin, Richard R. King