Patents by Inventor Daniel Derkacs

Daniel Derkacs 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: 20210005768
    Abstract: A multijunction solar cell assembly and its method of manufacture including first and second discrete and different semiconductor solar cells which are electrically interconnected to form a four or five junction solar cell assembly.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 7, 2021
    Applicant: SolAero Technologies Corp.
    Inventors: Daniel Derkacs, Jeff Steinfeldt
  • Publication number: 20200381575
    Abstract: A solar cell assembly comprising a plurality of solar cells and a flexible support, the support comprising a conductive layer on the top surface thereof divided into two electrically isolated portions—a first conductive portion and a second conductive portion. Each solar cell comprises a front surface, a rear surface, and a first contact on the rear surface and a second contact on the front surface. Each one of the plurality of solar cells is placed on the first conductive portion with the first contact electrically connected to the first conductive portion so that the solar cells are connected through the first conductive portion. A second contact of each solar cell can be connected to the second conductive portion. The two conductive portions serve as bus bars of two different polarities of the solar cell assembly.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Applicant: SolAero Technologies Corp.
    Inventors: Daniel Aiken, Daniel Derkacs
  • Publication number: 20200343400
    Abstract: A multijunction solar cell including an upper first solar subcell having a first band gap and positioned for receiving an incoming light beam; a second solar subcell disposed below and adjacent to and lattice matched with said upper first solar subcell, and having a second band gap smaller than said first band gap; wherein the upper first solar subcell covers less than the entire upper surface of the second solar subcell, leaving an exposed portion of the second solar subcell that lies in the path of the incoming light beam.
    Type: Application
    Filed: July 13, 2020
    Publication date: October 29, 2020
    Applicant: SolAero Technologies Corp.
    Inventors: Daniel Derkacs, Daniel McGlynn
  • Patent number: 10818812
    Abstract: A multijunction solar cell assembly and its method of manufacture including first and second discrete and different semiconductor body subassemblies which are electrically interconnected to form a five junction solar cell, each semiconductor body subassembly including first, second, third and fourth lattice matched subcells; wherein the average band gap of all four cells in each subassembly is greater than 1.44 eV.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: October 27, 2020
    Assignee: SolAero Technologies Corp.
    Inventors: Daniel Derkacs, Jeffrey Steinfeldt
  • Publication number: 20200335650
    Abstract: A multijunction solar cell assembly and its method of manufacture including first and second discrete semiconductor body subassemblies, each semiconductor body subassembly including first, second and third lattice matched subcells; a graded interlayer adjacent to the third solar subcell and functioning as a lateral conduction layer; and a fourth solar subcell adjacent to said graded interlayer being lattice mismatched with respect to the third solar subcell; wherein the average band gap of all four cells is greater than 1.44 eV.
    Type: Application
    Filed: June 26, 2020
    Publication date: October 22, 2020
    Applicant: SolAero Technologies Corp.
    Inventor: Daniel Derkacs
  • Patent number: 10790406
    Abstract: A solar cell assembly for space application comprising a plurality of space-qualified solar cells and a support, the support comprising a conductive layer. The conductive layer is divided into a first conductive portion and a second conductive portion. Each space-qualified solar cell of the plurality of space-qualified solar cells comprising a front surface, a rear surface, and a first contact in correspondence with the rear surface. Each one of the plurality of space-qualified solar cells is placed on the first conductive portion with the first contact electrically connected to the first conductive portion so that the space-qualified solar cells are connected in parallel through the first conductive portion. A second contact of each space-qualified solar cell can be connected to the second conductive portion. The two conductive portions serve as bus bars of the space-qualified solar cell assembly.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: September 29, 2020
    Assignee: SolAero Technologies Corp.
    Inventors: Daniel Aiken, Daniel Derkacs
  • Patent number: 10770612
    Abstract: The present disclosure provides a multijunction solar cell comprising: an upper solar subcell having an indirect band gap semiconductor emitter layer composed of greater than 0.7 but less than 1.0 mole fraction aluminum and a base layer, the emitter layer and the base layer forming a heterojunction solar subcell; and a lower solar subcell disposed beneath the upper solar subcell, wherein the lower solar subcell has an emitter layer and a base layer forming a photoelectric junction. In some embodiments, the emitter layer of the upper solar subcell is an n-type AlxGa1-xAs layer with 0.7<x<1.0 and having a band gap of greater than 1.85 eV.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: September 8, 2020
    Assignee: SolAero Technologies Corp.
    Inventors: Daniel Derkacs, Daniel Aiken, Samantha Whipple, Nathaniel Miller, Bed Pantha, Mark Stan
  • Publication number: 20200274016
    Abstract: A solar cell comprising a bulk germanium silicon growth substrate; a diffused photoactive junction in the germanium silicon substrate; and a sequence of subcells grown over the substrate, with the first grown subcell either being lattice matched or lattice mis-matched to the growth substrate.
    Type: Application
    Filed: March 13, 2020
    Publication date: August 27, 2020
    Applicant: SolAero Technologies Corp.
    Inventors: John Hart, Zachary Bittner, Samantha Whipple, Nathaniel Miller, Daniel Derkacs, Paul Sharps
  • Patent number: 10749053
    Abstract: A multijunction solar cell and its method of fabrication, including an upper and a lower solar subcell each having an emitter layer and a base layer forming a photoelectric junction; a near infrared (NIR) wideband reflector layer disposed below the upper subcell and above the lower subcell for reflecting light in the spectral range of 900 to 1050 nm which represents unused and undesired solar energy and thereby reducing the overall solar energy absorptance in the solar cell and providing thermodynamic radiative cooling of the solar cell when deployed in space outside the atmosphere.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: August 18, 2020
    Assignee: SolAero Technologies Corp.
    Inventors: Daniel Derkacs, Bed Pantha, Samantha Cruz, Nathaniel Miller, Pravin Patel, Alexander Haas
  • Publication number: 20200259039
    Abstract: A multijunction solar cell including a metamorphic layer, and particularly the design and specification of the composition, lattice constant, and band gaps of various layers above the metamorphic layer in order to achieve reduction in “bowing” of the semiconductor wafer caused by the lattice mismatch of layers associated with the metamorphic layer.
    Type: Application
    Filed: January 7, 2020
    Publication date: August 13, 2020
    Applicant: SolAero Technologies Corp.
    Inventors: Zachary Bittner, John Hart, Samantha Whipple, Nathaniel Miller, Daniel Derkacs
  • Publication number: 20200251604
    Abstract: A multijunction solar cell and its method of fabrication, having an upper first solar subcell composed of a semiconductor material including aluminum and having a first band gap; a second solar subcell adjacent to said first solar subcell and composed of a semiconductor material having a second band gap smaller than the first band gap and being lattice matched with the upper first solar subcell; a third solar subcell adjacent to said second solar subcell and composed of a semiconductor material having a third band gap smaller than the second band gap and being lattice matched with the second solar subcell; a first and second DBR structure adjacent to the third solar subcell; and a fourth solar subcell adjacent to the DBR structures and lattice matched with said third solar subcell and composed of a semiconductor material having a fourth band gap smaller than the third band gap; wherein the fourth subcell has a direct bandgap of greater than 0.75 eV.
    Type: Application
    Filed: March 31, 2020
    Publication date: August 6, 2020
    Applicant: SolAero Technologies Corp.
    Inventors: Daniel McGlynn, Daniel Derkacs
  • Publication number: 20200251603
    Abstract: A multijunction solar cell and its method of fabrication, having an upper first solar subcell composed of a semiconductor material including aluminum and having a first band gap; a second solar subcell adjacent to said first solar subcell and composed of a semiconductor material having a second band gap smaller than the first band gap and being lattice matched with the upper first solar subcell; a third solar subcell adjacent to said second solar subcell and composed of a semiconductor material having a third band gap smaller than the second band gap and being lattice matched with the second solar subcell; a first and second DBR structure adjacent to the third solar subcell; and a fourth solar subcell adjacent to the DBR structures and lattice matched with said third solar subcell and composed of a semiconductor material having a fourth band gap smaller than the third band gap; wherein the fourth subcell has a direct bandgap of greater than 0.75 eV.
    Type: Application
    Filed: March 31, 2020
    Publication date: August 6, 2020
    Applicant: SolAero Technologies Corp.
    Inventors: Daniel McGlynn, Daniel Derkacs
  • Patent number: 10714636
    Abstract: A multijunction solar cell assembly and its method of manufacture including interconnected first and second discrete semiconductor body subassemblies disposed adjacent and parallel to each other, each semiconductor body subassembly including first top subcell, second (and possibly third) lattice matched middle subcells; a graded interlayer adjacent to the last middle solar subcell; and a bottom solar subcell adjacent to said graded interlayer being lattice mismatched with respect to the last middle solar subcell; wherein the interconnected subassemblies form at least a four junction solar cell by a series connection being formed between the bottom solar subcell in the first semiconductor body and the bottom solar subcell in the second semiconductor body.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 14, 2020
    Assignee: SolAero Technologies Corp.
    Inventor: Daniel Derkacs
  • Patent number: 10707366
    Abstract: A solar cell comprising a bulk germanium silicon growth substrate; a diffused photoactive junction in the germanium silicon substrate; and a sequence of subcells grown over the substrate, with the first grown subcell either being lattice matched or lattice mis-matched to the growth substrate.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: July 7, 2020
    Assignee: SolAero Technologies Corp.
    Inventors: John Hart, Zachary Bittner, Samantha Whipple, Nathaniel Miller, Daniel Derkacs, Paul Sharps
  • Patent number: 10700230
    Abstract: A method of manufacturing a multijunction solar cell having an upper first solar subcell composed of a semiconductor material having a first band gap; a second solar subcell adjacent to said first solar subcell and composed of a semiconductor material having a second band gap smaller than the first band gap and being lattice matched with the upper first solar subcell; a third solar subcell adjacent to said second solar subcell and composed of a semiconductor material having a third band gap smaller than the second band gap and being lattice matched with the second solar subcell; a graded interlayer adjacent to the third solar subcell; and a fourth solar subcell adjacent to said graded interlayer and composed of a semiconductor material having a fourth band gap smaller than the third band gap and being lattice mismatched with respect to the third solar subcell; wherein the fourth subcell has a direct bandgap of greater than 0.75 eV.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: June 30, 2020
    Assignee: SolAero Technologies Corp.
    Inventor: Daniel Derkacs
  • Patent number: 10700231
    Abstract: A multijunction solar cell assembly and its method of manufacture including first and second discrete semiconductor body subassemblies, each semiconductor body subassembly including first, second and third lattice matched subcells; a graded interlayer adjacent to the third solar subcell and functioning as a lateral conduction layer; and a fourth solar subcell adjacent to said graded interlayer being lattice mismatched with respect to the third solar subcell; wherein the average band gap of all four cells is greater than 1.44 eV.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: June 30, 2020
    Assignee: SolAero Technologies Corp.
    Inventor: Daniel Derkacs
  • Publication number: 20200203537
    Abstract: A multijunction solar cell assembly and its method of manufacture including interconnected first and second discrete semiconductor body subassemblies disposed adjacent and parallel to each other, each semiconductor body subassembly including first top subcell, second (and possibly third) lattice matched middle subcells; a graded interlayer adjacent to the last middle solar subcell; and a bottom solar subcell adjacent to said graded interlayer being lattice mismatched with respect to the last middle solar subcell; wherein the interconnected subassemblies form at least a four junction solar cell by a series connection being formed between the bottom solar subcell in the first semiconductor body and the bottom solar subcell in the second semiconductor body.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 25, 2020
    Applicant: SolAero Technologies Corp.
    Inventor: Daniel Derkacs
  • Patent number: 10636926
    Abstract: A multijunction solar cell and its method of fabrication, having an upper first solar subcell composed of a semiconductor material including aluminum and having a first band gap; a second solar subcell adjacent to said first solar subcell and composed of a semiconductor material having a second band gap smaller than the first band gap and being lattice matched with the upper first solar subcell; a third solar subcell adjacent to said second solar subcell and composed of a semiconductor material having a third band gap smaller than the second band gap and being lattice matched with the second solar subcell; a first and second DBR structure adjacent to the third solar subcell; and a fourth solar subcell adjacent to the DBR structures and lattice matched with said third solar subcell and composed of a semiconductor material having a fourth band gap smaller than the third band gap; wherein the fourth subcell has a direct bandgap of greater than 0.75 eV.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: April 28, 2020
    Assignee: SolAero Technologies Corp.
    Inventors: Daniel McGlynn, Daniel Derkacs
  • Patent number: D888656
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: June 30, 2020
    Assignee: SolAero Technologies Corp.
    Inventors: Daniel Aiken, Daniel Derkacs, Claiborne McPheeters
  • Patent number: D900017
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: October 27, 2020
    Assignee: SolAero Technologies Corp.
    Inventors: Daniel Aiken, Lance Fesler, Jeffrey Steinfeldt, Daniel Derkacs