Patents by Inventor Arthur Cornfeld

Arthur Cornfeld 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).

  • Patent number: 10381505
    Abstract: A multijunction solar cell includes an upper first solar subcell having a first band gap, a second solar subcell having a second band gap smaller than the first band gap, and a first graded interlayer composed of (InxGa1-x)yAl1-yAs adjacent to the second solar subcell. The first graded interlayer has a third band gap greater than the second band gap subject to the constraints of having the in-plane lattice parameter greater or equal to that of the second subcell and less than or equal to that of the third subcell, wherein 0<x<1 and 0<y<1, and x and y are selected such that the band gap of the first graded interlayer remains constant throughout its thickness at 1.5 eV. A third solar subcell is adjacent to the first graded interlayer and has a fourth band gap smaller than the second band gap such that the third subcell is lattice mismatched with respect to the second subcell.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: August 13, 2019
    Assignee: SolAero Technologies Corp.
    Inventors: Pravin Patel, Arthur Cornfeld, John Spann, Mark A. Stan, Benjamin Cho, Paul R. Sharps, Daniel J. Aiken
  • Patent number: 10381501
    Abstract: The disclosure describes multi-junction solar cell structures that include two or more graded interlayers.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: August 13, 2019
    Assignee: SolAero Technologies Corp.
    Inventors: Yong Lin, Paul R. Sharps, Arthur Cornfeld, Pravin Patel, Mark A. Stan, Benjamin Cho
  • Patent number: 10374112
    Abstract: A multijunction solar cell includes an upper first solar subcell, a second solar subcell adjacent to the first solar subcell, a third solar subcell adjacent to the second solar subcell, and a graded interlayer adjacent to the third solar subcell. The graded interlayer has a band gap that is greater than the band gap of the third solar subcell and is composed of a compositionally step-graded series of (InxGa1-x)yAl1-yAs layers with monotonically changing lattice constant, with x and y having respective values such that the band gap of the graded interlayer remains constant throughout its thickness, and wherein 0<x<1 and 0<y<1. A fourth solar subcell is adjacent to the graded interlayer and is lattice mismatched with respect to the third solar subcell. The graded interlayer provides a transition in lattice constant from the third solar subcell to the fourth solar subcell. A lower fifth solar subcell is adjacent to the fourth solar subcell.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: August 6, 2019
    Assignee: SolAero Technologies Corp.
    Inventors: Arthur Cornfeld, Pravin Patel, Mark A. Stan, Benjamin Cho, Paul R. Sharps, Daniel J. Aiken, John Spann
  • Patent number: 10211361
    Abstract: A method of manufacturing a solar cell comprising providing a first semiconductor substrate with an epitaxial sequence of layers of semiconductor material forming a solar cell deposited over the first semiconductor substrate using an MOCVD reactor; depositing a metal layer on top of the sequence of layers of semiconductor material, the metal layer including a top surface layer composed of gold or silver; providing a polymer film; depositing a first metallic adhesion layer that has a coefficient of thermal expansion substantially different from that of the top surface layer on one surface of the polymer film; depositing a second metal adhesion layer over the first metallic adhesion layer and having a different composition from the first layer and having no chemical elements in common; and adjoining the second adhesion layer of the polymer film to the metal layer of the sequence of layers and permanently bonding it thereto by a thermocompressive diffusion bonding technique.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: February 19, 2019
    Assignee: SolAero Technologies Corp.
    Inventors: Michael Riley, Mark Stan, Arthur Cornfeld
  • Publication number: 20180351022
    Abstract: The disclosure describes multi-junction solar cell structures that include two or more graded interlayers.
    Type: Application
    Filed: February 15, 2017
    Publication date: December 6, 2018
    Inventors: Yong Lin, Paul R. Sharps, Arthur Cornfeld, Pravin Patel, Mark A. Stan, Benjamin Cho
  • Publication number: 20180269346
    Abstract: The present disclosure provides a method of manufacturing a solar cell that includes providing a semiconductor growth substrate; depositing on said growth substrate a sequence of layers of semiconductor material forming a solar cell; applying a metal contact layer over said sequence of layers; affixing the adhesive polyimide surface of a permanent supporting substrate directly over said metal contact layer and permanently bonding it thereto by a thermocompressive technique; and removing the semiconductor growth substrate.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Applicant: SolAero Technologies Corp.
    Inventors: Arthur Cornfeld, Jeff Steinfeldt
  • Publication number: 20180248066
    Abstract: A multijunction solar cell includes an InGaAs buffer layer and an InGaAlAs grading interlayer disposed below, and adjacent to, the InGaAs buffer layer. The grading interlayer achieves a transition in lattice constant from one solar subcell to another solar subcell.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Arthur Cornfeld, Mark A. Stan
  • Patent number: 10026860
    Abstract: A method of forming a multijunction solar cell comprising an upper subcell, a middle subcell, and a lower subcell comprising providing first substrate for the epitaxial growth of semiconductor material; forming a first solar subcell on said substrate having a first band gap; forming a second solar subcell over said first subcell having a second band gap smaller than said first band gap; and forming a grading interlayer over said second sub cell having a third band gap larger than said second band gap forming a third solar subcell having a fourth band gap smaller than said second band gap such that said third subcell is lattice mis-matched with respect to said second subcell.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: July 17, 2018
    Assignee: SolAero Technologies Corp.
    Inventors: Arthur Cornfeld, Mark A. Stan
  • Patent number: 10008623
    Abstract: The present disclosure provides a method of manufacturing a solar cell that includes providing a semiconductor growth substrate; depositing on said growth substrate a sequence of layers of semiconductor material forming a solar cell; applying a metal contact layer over said sequence of layers; affixing the adhesive polyimide surface of a permanent supporting substrate directly over said metal contact layer and permanently bonding it thereto by a thermocompressive technique; and removing the semiconductor growth substrate.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: June 26, 2018
    Assignee: SolAero Technologies Corp.
    Inventors: Arthur Cornfeld, Jeff Steinfeldt
  • Publication number: 20180102454
    Abstract: The disclosure describes multi-junction solar cell structures that include two or more graded interlayers.
    Type: Application
    Filed: February 15, 2017
    Publication date: April 12, 2018
    Inventors: Yong Lin, Paul R. Sharps, Arthur Cornfeld, Pravin Patel, Mark A. Stan, Benjamin Cho
  • Patent number: 9853180
    Abstract: A multijunction solar cell including an upper first solar subcell; a second solar subcell adjacent to the first solar subcell; a first graded interlayer adjacent to the second solar subcell; a third solar subcell adjacent to the first graded interlayer such that the third subcell is lattice mismatched with respect to the second subcell. A second graded interlayer is provided adjacent to the third solar subcell, and a lower fourth solar subcell is provided adjacent to the second graded interlayer, such that the fourth subcell is lattice mismatched with respect to the third subcell. An encapsulating layer composed of silicon nitride or titanium oxide disposed on the top surface of the solar cell, and an antireflection coating layer disposed over the encapsulating layer.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: December 26, 2017
    Assignee: SolAero Technologies Corp.
    Inventor: Arthur Cornfeld
  • Publication number: 20170243997
    Abstract: A multijunction solar cell including an upper first solar subcell having a first band gap; a second solar subcell adjacent to the first solar subcell and having a second band gap smaller than the first band gap; a first graded interlayer adjacent to the second solar subcell; the first graded interlayer having a third band gap greater than the second band gap; and a third solar subcell adjacent to the first graded interlayer, the third subcell having a fourth band gap smaller than the second band gap such that the third subcell is lattice mismatched with respect to the second subcell. A second graded interlayer is provided adjacent to the third solar subcell; the second graded interlayer having a fifth band gap greater than the fourth band gap; and a lower fourth solar subcell is provided adjacent to the second graded interlayer, the lower fourth subcell having a sixth band gap smaller than the fourth band gap such that the fourth subcell is lattice mismatched with respect to the third subcell.
    Type: Application
    Filed: May 8, 2017
    Publication date: August 24, 2017
    Inventors: Arthur Cornfeld, Benjamin Cho
  • Patent number: 9691928
    Abstract: A method of forming a multijunction solar cell comprising at least an upper subcell, a middle subcell, and a lower subcell, the method including forming a first alpha layer over said middle solar subcell using a surfactant and dopant including selenium, the first alpha layer configured to prevent threading dislocations from propagating; forming a metamorphic grading interlayer over and directly adjacent to said first alpha layer; forming a second alpha layer using a surfactant and dopant including selenium over and directly adjacent to said grading interlayer to prevent threading dislocations from propagating; and forming a lower solar subcell over said grading interlayer such that said lower solar subcell is lattice mismatched with respect to said middle solar subcell.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: June 27, 2017
    Assignee: SolAreo Technologies Corp.
    Inventors: Benjamin Cho, Yong Lin, Pravin Patel, Mark A. Stan, Arthur Cornfeld, Daniel McGlynn, Fred Newman
  • Patent number: 9691929
    Abstract: A multijunction solar cell including an upper first solar subcell having a first band gap; a second solar subcell adjacent to the first solar subcell and having a second band gap smaller than the first band gap; a first graded interlayer adjacent to the second solar subcell; the first graded interlayer having a third band gap greater than the second band gap; and a third solar subcell adjacent to the first graded interlayer, the third subcell having a fourth band gap smaller than the second band gap such that the third subcell is lattice mismatched with respect to the second subcell. A second graded interlayer is provided adjacent to the third solar subcell; the second graded interlayer having a fifth band gap greater than the fourth band gap; and a lower fourth solar subcell is provided adjacent to the second graded interlayer, the lower fourth subcell having a sixth band gap smaller than the fourth band gap such that the fourth subcell is lattice mismatched with respect to the third subcell.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: June 27, 2017
    Assignee: SolAero Technologies Corp.
    Inventors: Arthur Cornfeld, Benjamin Cho
  • Publication number: 20170162739
    Abstract: The disclosure describes multi-junction solar cell structures that include two or more graded interlayers.
    Type: Application
    Filed: February 15, 2017
    Publication date: June 8, 2017
    Inventors: Yong Lin, Paul R. Sharps, Arthur Cornfeld, Pravin Patel, Mark A. Stan, Benjamin Cho
  • Patent number: 9634172
    Abstract: The disclosure describes multi-junction solar cell structures that include two or more graded interlayers.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: April 25, 2017
    Assignee: SolAero Technologies Corp.
    Inventors: Yong Lin, Paul Sharps, Arthur Cornfeld, Pravin Patel, Mark A. Stan, Benjamin Cho
  • Publication number: 20170110612
    Abstract: The disclosure describes multi-junction solar cell structures that include two or more graded interlayers.
    Type: Application
    Filed: September 12, 2014
    Publication date: April 20, 2017
    Inventors: Yong Lin, Paul Sharps, Arthur Cornfeld, Pravin Patel, Mark A. Stan, Benjamin Cho
  • Patent number: 9601652
    Abstract: A method of forming a multijunction solar cell including an upper subcell, a middle subcell, and a lower subcell by providing a substrate for the epitaxial growth of semiconductor material; forming a first solar subcell on the substrate having a first band gap; forming a second solar subcell over the first solar subcell having a second band gap smaller than the first band gap; forming a graded interlayer over the second subcell, the graded interlayer having a third band gap greater than the second band gap; forming a third solar subcell over the graded interlayer having a fourth band gap smaller than the second band gap such that the third subcell is lattice mismatched with respect to the second subcell; and forming a contact composed of a sequence of layers over the first subcell at a temperature of 280° C. or less and having a contact resistance of less than 5×10?4 ohms-cm2.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: March 21, 2017
    Assignee: SolAero Technologies Corp.
    Inventors: Tansen Varghese, Arthur Cornfeld
  • Publication number: 20160329454
    Abstract: A multijunction solar cell includes an upper first solar subcell having a first band gap, a second solar subcell having a second band gap smaller than the first band gap, and a first graded interlayer composed of (InxGa1-x)yAl1-yAs adjacent to the second solar subcell. The first graded interlayer has a third band gap greater than the second band gap subject to the constraints of having the in-plane lattice parameter greater or equal to that of the second subcell and less than or equal to that of the third subcell, wherein 0<x<1 and 0<y<1, and x and y are selected such that the band gap of the first graded interlayer remains constant throughout its thickness at 1.5 eV. A third solar subcell is adjacent to the first graded interlayer and has a fourth band gap smaller than the second band gap such that the third subcell is lattice mismatched with respect to the second subcell.
    Type: Application
    Filed: July 19, 2016
    Publication date: November 10, 2016
    Inventors: Pravin Patel, Arthur Cornfeld, John Spann, Mark A. Stan, Benjamin Cho, Paul R. Sharps, Daniel J. Aiken
  • Publication number: 20160190378
    Abstract: A multijunction solar cell includes an upper first solar subcell, a second solar subcell adjacent to the first solar subcell, a third solar subcell adjacent to the second solar subcell, and a graded interlayer adjacent to the third solar subcell. The graded interlayer has a band gap that is greater than the band gap of the third solar subcell and is composed of a compositionally step-graded series of (InxGa1-x)y Al1-yAs layers with monotonically changing lattice constant, with x and y having respective values such that the band gap of the graded interlayer remains constant throughout its thickness, and wherein 0<x<1 and 0<y<1. A fourth solar subcell is adjacent to the graded interlayer and is lattice mismatched with respect to the third solar subcell. The graded interlayer provides a transition in lattice constant from the third solar subcell to the fourth solar subcell. A lower fifth solar subcell is adjacent to the fourth solar subcell.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 30, 2016
    Inventors: Arthur Cornfeld, Pravin Patel, Mark A. Stan, Benjamin Cho, Paul R. Sharps, Daniel J. Aiken, John Spann