Patents by Inventor Siegfried Christiaan Veenstra

Siegfried Christiaan Veenstra 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: 20240105866
    Abstract: A photo-voltaic element comprising a stack of layers is disclosed, as well as a method of making the photo-voltaic element. The stack of layers at least includes the following: a first electrode layer, a first charge carrier transport layer, an insulating layer, a second electrode layer, a second charge carrier transport layer, and a photo-electric conversion layer. The photo-electric conversion layer comprises a plurality of distributed extensions extending through the second charge carrier transport layer, the second electrode layer, and the insulating layer, to the first charge carrier transport layer. The distributed extensions have an effective cross-section Deff in the range of 0.5 to 10 micron, and have an average pitch in the range of 1.1 to 5 times said effective cross-section.
    Type: Application
    Filed: September 20, 2023
    Publication date: March 28, 2024
    Applicant: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Herbert LIFKA, Siegfried Christiaan VEENSTRA, Maarten Sander DORENKAMPER, Hieronymus Antonius Josephus Maria ANDRIESSEN, Huibert Johan VAN DEN HEUVEL
  • Patent number: 11769847
    Abstract: A solar panel includes a silicon cells submodule of silicon based cells, a front transparent plate and a backsheet. The backsheet is arranged with at least a first conductive pattern that is connected to rear surface electrical contacts on each of the silicon cells. A thin film photovoltaic submodule is arranged between the front transparent plate and the silicon cells, and includes thin film cells in an arrangement with two photovoltaic submodule contacts that connect to a second conductive pattern on the backsheet. The backsheet is arranged for four-terminal wiring with the first pattern for the silicon cells and the second pattern for the thin film cells. The thin film cells are disposed in a first group of cells and in at least a second group of cells, each connected in series. The first group is connected in parallel with the second group, between the photovoltaic submodule contacts.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: September 26, 2023
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO
    Inventors: Johannes Adrianus Maria van Roosmalen, Siegfried Christiaan Veenstra, Dong Zhang, Markus Johan Jansen
  • Patent number: 11749766
    Abstract: A photovoltaic device (1) is provided with a first electrode layer (11), a photovoltaic layer (13), a second charge carrier transport layer (14) and a second electrode layer (15). The photovoltaic device (1) has a plurality of mutually subsequent photovoltaic device cells (1A, . . . , 1F) arranged in a first direction (D1). Each pair of a photovoltaic cell (1C) and its successor are serially connected in an interface region (1CD). The interface region comprises an elongate region (R0) between successive first electrode layer portion (11C, 11D), a first elongate region (R1) between successive photovoltaic layer portions (13A, 13B), a second elongate region (R2) between successive second charge carrier transport layer portions (14C, 14D) and a third elongate region (R3) between successive second electrode layer (15) portions (15C, 15D). The second elongate region (R2) extends within the first elongate region (R1), and its lateral boundaries are distinct from those of the first elongate region (R1).
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: September 5, 2023
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Herbert Lifka, Francesco Di Giacomo, Henri Fledderus, Yulia Galagan, Valerio Zardetto, Siegfried Christiaan Veenstra, Mehrdad Najafi, Dong Zhang
  • Patent number: 11393943
    Abstract: The present disclosure pertains to a photovoltaic product (1), comprising a foil with a photovoltaic layer stack (10) and an electrically conductive layer stack (20) that supports the photovoltaic layer stack and that in an operational state provides for a transport of electric energy generated by the photovoltaic layer stack to an external load.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: July 19, 2022
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Herbert Lifka, Johan Bosman, Siegfried Christiaan Veenstra
  • Publication number: 20220059715
    Abstract: The present disclosure pertains to a photovoltaic product (1), comprising a foil with a photovoltaic layer stack (10) and an electrically conductive layer stack (20) that supports the photovoltaic layer stack and that in an operational state provides for a transport of electric energy generated by the photovoltaic layer stack to an external load.
    Type: Application
    Filed: December 18, 2019
    Publication date: February 24, 2022
    Inventors: Herbert LIFKA, Johan BOSMAN, Siegfried Christiaan VEENSTRA
  • Patent number: 11152527
    Abstract: A tandem solar cell includes a top solar cell and a bottom solar cell. The top solar cell and the bottom solar cell each have a respective front surface and a rear surface, with the respective front surfaces being adapted for facing a radiation source during use. The top solar cell is arranged with its rear surface overlying the front surface of the bottom solar cell. The top solar cell includes a photovoltaic absorber layer with a bandgap greater than that of crystalline silicon. The bottom solar cell includes a crystalline silicon substrate. On at least a portion of the front surface of the bottom solar cell a passivating layer stack is disposed which includes a thin dielectric film and a secondary layer of either selective carrier extracting material or polysilicon. The thin dielectric film is arranged between the silicon substrate and the secondary layer.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: October 19, 2021
    Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO
    Inventors: Lambert Johan Geerligs, Yu Wu, Dong Zhang, Johannes Adrianus Maria van Roosmalen, Stefan Libertus Luxembourg, Siegfried Christiaan Veenstra
  • Publication number: 20210265517
    Abstract: A photovoltaic device (1) is provided with a first electrode layer (11), a photovoltaic layer (13), a second charge carrier transport layer (14) and a second electrode layer (15). The photovoltaic device (1) has a plurality of mutually subsequent photovoltaic device cells (1A, . . . , 1F) arranged in a first direction (D1). Each pair of a photovoltaic cell (1C) and its successor are serially connected in an interface region (1CD). The interface region comprises an elongate region (RO) between successive first electrode layer portion (11C, 11D), a first elongate region (R1) between successive photovoltaic layer portions (13A, 13B), a second elongate region (R2) between successive second charge carrier transport layer portions (14C, 14D) and a third elongate region (R3) between successive second electrode layer (15) portions (15C, 15D). The second elongate region (R2) extends within the first elongate region (R1), and its lateral boundaries are distinct from those of the first elongate region (R1).
    Type: Application
    Filed: July 23, 2019
    Publication date: August 26, 2021
    Inventors: Herbert LIFKA, Francesco DI GIACOMO, Henri FLEDDERUS, Yulia GALAGAN, Valerio ZARDETTO, Siegfried Christiaan VEENSTRA, Mehrdad NAJAFI, Dong ZHANG
  • Publication number: 20210143292
    Abstract: A solar panel includes a silicon cells submodule of silicon based cells, a front transparent plate and a backsheet. The backsheet is arranged with at least a first conductive pattern that is connected to rear surface electrical contacts on each of the silicon cells. A thin film photovoltaic submodule is arranged between the front transparent plate and the silicon cells, and includes thin film cells in an arrangement with two photovoltaic submodule contacts that connect to a second conductive pattern on the backsheet. The backsheet is arranged for four-terminal wiring with the first pattern for the silicon cells and the second pattern for the thin film cells. The thin film cells are disposed in a first group of cells and in at least a second group of cells, each connected in series. The first group is connected in parallel with the second group, between the photovoltaic submodule contacts.
    Type: Application
    Filed: July 11, 2018
    Publication date: May 13, 2021
    Applicant: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO
    Inventors: Johannes Adrianus Maria van Roosmalen, Siegfried Christiaan Veenstra, Dong Zhang, Markus Johan Jansen
  • Publication number: 20200381568
    Abstract: A photo-voltaic element (1) comprising a stack of layers is provided. The stack of layers at least includes the following layers arranged in the order named: a first electrode layer, a first charge carrier transport layer, an insulating layer, a second electrode layer, a second charge carrier transport layer, and a photo-electric conversion layer. The photo-electric conversion layer (70), comprises a plurality of distributed extensions (72) extending through the second charge carrier transport layer (60), the second electrode layer (50) and the insulating layer (40) to the first charge carrier transport layer (30). The extensions (72) have an effective cross-section Deff in the range of 0.5 to 10 micron, and have an average pitch in the range of 1.1 to 5 times said effective cross-section.
    Type: Application
    Filed: April 12, 2018
    Publication date: December 3, 2020
    Applicant: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
    Inventors: Herbert LIFKA, Siegfried Christiaan VEENSTRA, Maarten Sander DORENKAMPER, Hieronymus Antonius Josephus Maria ANDRIESSEN, Huibert Johan VAN DEN HEUVEL
  • Publication number: 20180374977
    Abstract: A tandem solar cell includes a top solar cell and a bottom solar cell. The top solar cell and the bottom solar cell each have a respective front surface and a rear surface, with the respective front surfaces being adapted for facing a radiation source during use. The top solar cell is arranged with its rear surface overlying the front surface of the bottom solar cell. The top solar cell includes a photovoltaic absorber layer with a bandgap greater than that of crystalline silicon. The bottom solar cell includes a crystalline silicon substrate. On at least a portion of the front surface of the bottom solar cell a passivating layer stack is disposed which includes a thin dielectric film and a secondary layer of either selective carrier extracting material or polysilicon. The thin dielectric film is arranged between the silicon substrate and the secondary layer.
    Type: Application
    Filed: December 19, 2016
    Publication date: December 27, 2018
    Applicant: Stichting Energieonderzoek Centrum Nederland
    Inventors: Lambert Johan Geerligs, Yu Wu, Dong Zhang, Johannes Adrianus Maria van Roosmalen, Stefan Libertus Luxembourg, Siegfried Christiaan Veenstra