Patents by Inventor Mehrdad NAJAFI

Mehrdad NAJAFI 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).

  • Photovoltaic device and method of manufacturing the same
    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
  • PHOTOVOLTAIC DEVICE AND METHOD OF MANUFACTURING THE SAME
    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