Patents by Inventor Cory Cress

Cory Cress 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).

  • Multijunction Solar Cells Lattice Matched to InP Using Sb-Containing Alloys
    Publication number: 20130048063
    Abstract: A multijunction (MJ) solar cell grown on an InP substrate using materials that are lattice-matched to InP. In an exemplary three-junction embodiment, the top cell is formed from In1-xAlxAs1-ySby (with x and y adjusted so as to achieve lattice-matching with InP, hereafter referred to as InAlAsSb), the middle cell from In1-a-bGaaAlbAs (with a and b adjusted so as to achieve lattice-matching with InP, hereafter referred to as InGaAlAs), and the bottom cell also from InGaAlAs, but with a much lower Al composition, which in some embodiments can be zero so that the material is InGaAs. Tunnel junctions (TJs) connect the junctions and allow photo-generated current to flow. In an exemplary embodiment, an InAlAsSb TJ connects the first and second junctions, while an InGaAlAs TJ connects the second and third junctions.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Robert J. Walters, Phillip Jenkins, Maria Gonzalez, Igor Vurgaftman, Jerry R. Meyer, Joshua Abell, Matthew P. Lumb, Michael K. Yakes, Joseph G. Tischler, Cory Cress, Nicholas Ekins-Daukes, Paul Stavrinou, Jessica Adams, Ngai Chan