Patents by Inventor Henry J. Snaith

Henry J. Snaith 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: 11799039
    Abstract: The present invention relates to devices comprising metal halide perovskites and organic passivating agents. In particular, the invention relates to photovoltaic and optoelectronic devices comprising passivated metal halide perovskites. The device according to the invention comprises: (a) a metal halide perovskite; and (b) a passivating agent which is an organic compound; wherein molecules of the passivating agent are chemically bonded to anions or cations in the metal halide perovskite.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: October 24, 2023
    Assignee: OXFORD UNIVERSITY INNOVATION LIMITED
    Inventors: Henry J. Snaith, Antonio Abate, Nakita K. Noel
  • Publication number: 20210057591
    Abstract: The present invention relates to devices comprising metal halide perovskites and organic passivating agents. In particular, the invention relates to photovoltaic and optoelectronic devices comprising passivated metal halide perovskites. The device according to the invention comprises: (a) a metal halide perovskite; and (b) a passivating agent which is an organic compound; wherein molecules of the passivating agent are chemically bonded to anions or cations in the metal halide perovskite.
    Type: Application
    Filed: October 26, 2020
    Publication date: February 25, 2021
    Inventors: Henry J. Snaith, Antonio Abate, Nakita K. Noel
  • Publication number: 20210028319
    Abstract: The present invention relates to devices comprising metal halide perovskites and organic passivating agents. In particular, the invention relates to photovoltaic and optoelectronic devices comprising passivated metal halide perovskites. The device according to the invention comprises: (a) a metal halide perovskite; and (b) a passivating agent which is an organic compound; wherein molecules of the passivating agent are chemically bonded to anions or cations in the metal halide perovskite.
    Type: Application
    Filed: August 11, 2020
    Publication date: January 28, 2021
    Inventors: Henry J. Snaith, Antonio Abate, Nakita K. Noel
  • Patent number: 10777693
    Abstract: The present invention relates to devices comprising metal halide perovskites and organic passivating agents. In particular, the invention relates to photovoltaic and optoelectronic devices comprising passivated metal halide perovskites. The device according to the invention comprises: (a) a metal halide perovskite; and (b) a passivating agent which is an organic compound; wherein molecules of the passivating agent are chemically bonded to anions or cations in the metal halide perovskite.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: September 15, 2020
    Assignee: OXFORD UNIVERSITY INNOVATION LIMITED
    Inventors: Henry J. Snaith, Antonio Abate, Nakita K. Noel
  • Patent number: 10580585
    Abstract: The present invention provides a process for producing a layer of a crystalline material comprising a perovskite or a hexahalometallate, which process comprises: (i) exposing a substrate to a vapour comprising a first precursor compound in a first chamber to produce a layer of the first precursor compound on the substrate; and (ii) exposing the layer of the first precursor compound to a vapour comprising a second precursor compound in a second chamber to produce the layer of a crystalline material, wherein the pressure in the second chamber is above high vacuum. The invention also provides a process for producing a layer of a crystalline material comprising a perovskite or a hexahalometallate, which process comprises exposing a layer of a first precursor compound on a substrate to a vapour comprising a second precursor compound in a chamber to produce the layer of a crystalline material, wherein the pressure in the chamber is greater than high vacuum and less than atmospheric pressure.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: March 3, 2020
    Assignee: OXFORD UNIVERSITY INNOVATION LIMITED
    Inventors: Henry J. Snaith, Giles E. Eperon, James M. Ball
  • Publication number: 20170148579
    Abstract: The present invention provides a process for producing a layer of a crystalline material comprising a perovskite or a hexahalometallate, which process comprises: (i) exposing a substrate to a vapour comprising a first precursor compound in a first chamber to produce a layer of the first precursor compound on the substrate; and (ii) exposing the layer of the first precursor compound to a vapour comprising a second precursor compound in a second chamber to produce the layer of a crystalline material, wherein the pressure in the second chamber is above high vacuum. The invention also provides a process for producing a layer of a crystalline material comprising a perovskite or a hexahalometallate, which process comprises exposing a layer of a first precursor compound on a substrate to a vapour comprising a second precursor compound in a chamber to produce the layer of a crystalline material, wherein the pressure in the chamber is greater than high vacuum and less than atmospheric pressure.
    Type: Application
    Filed: July 9, 2015
    Publication date: May 25, 2017
    Applicant: OXFORD UNIVERSITY INNOVATION LIMITED
    Inventors: HENRY J. Snaith, Giles E. Eperon, James M. Ball
  • Publication number: 20160380125
    Abstract: The present invention relates to devices comprising metal halide perovskites and organic passivating agents. In particular, the invention relates to photovoltaic and optoelectronic devices comprising passivated metal halide perovskites. The device according to the invention comprises: (a) a metal halide perovskite; and (b) a passivating agent which is an organic compound; wherein molecules of the passivating agent are chemically bonded to anions or cations in the metal halide perovskite.
    Type: Application
    Filed: December 17, 2014
    Publication date: December 29, 2016
    Applicant: Isis Innovation Limited
    Inventors: Henry J. Snaith, Antonio Abate, Nakita K. Noel
  • Patent number: 9349971
    Abstract: The present invention provides a solid-state p-n heterojunction comprising a p-type material in contact with an n-type material wherein said n-type material comprises SnO2 having at least one surface-coating of a surface coating material having a higher band-gap than SnO2 and/or a conduction band edge closer to vacuum level than SnO2, such as MgO. The invention also provides optoelectronic devices such as solar cells or photo sensors comprising such a p-n heterojunction, and methods for the manufacture of such a heterojunction or device.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: May 24, 2016
    Assignee: Isis Innovation Limited
    Inventor: Henry J. Snaith
  • Publication number: 20120216865
    Abstract: A solid-state p-n heterojunction comprising an organic p-type material in contact with an n-type material wherein said n-type material is surface-sensitised by at least two sensitizing agents comprising an energy donor sensitizing agent and an energy acceptor sensitizing agent and optionally at least one intermediate sensitizing agent, wherein the emission spectrum of the donor sensitizing agent overlaps with the absorption spectrum of the acceptor sensitizing agent and/or at least one intermediate sensitizing agent where present, and the emission spectrum of at least one intermediate sensitizing agent where present overlaps with the absorption spectrum of the acceptor sensitizing agent and wherein the acceptor sensitizing agent individually has a maximum Absorbed Photon to electron Conversion Efficiency of no less than 40% in an equivalent heterojunction when used as sole sensitizing agent.
    Type: Application
    Filed: September 13, 2010
    Publication date: August 30, 2012
    Applicant: ISIS INNOVATION LIMITED
    Inventor: Henry J. Snaith
  • Publication number: 20120146007
    Abstract: The present invention provides a solid-state p-n heterojunction comprising a p-type material in contact with an n-type material wherein said n-type material comprises SnO2 having at least one surface-coating of a surface coating material having a higher band-gap than SnO2 and/or a conduction band edge closer to vacuum level than SnO2, such as MgO. The invention also provides optoelectronic devices such as solar cells or photo sensors comprising such a p-n heterojunction, and methods for the manufacture of such a heterojunction or device.
    Type: Application
    Filed: June 8, 2010
    Publication date: June 14, 2012
    Applicant: ISIS INNOVATION LIMITED
    Inventor: Henry J. Snaith
  • Patent number: 8105865
    Abstract: The present invention relates to optoelectronic and/or electrochemical devices comprising an organic charge transporting material which is liquid at a temperature of ?180° C. In particular in dye-sensitised solar cells, quantum efficiency higher than with prior art solid organic hole-transporters is reported. The melting point of a large quantity of organic charge transporting materials may be adjusted to a desired value by selecting suitable substituents. Accordingly, general advantages of the liquid state may be associated with the properties of organic charge transporting materials.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: January 31, 2012
    Assignee: Ecole Polytechnique Fédérale de Lausanne (EPFL)
    Inventors: Henry J. Snaith, Shaik Mohammad Zakeeruddin, Michael Graetzel
  • Publication number: 20100051908
    Abstract: The present invention relates to optoelectronic and/or electrochemical devices comprising an organic charge transporting material which is liquid at a temperature of ?180° C. In particular in dye-sensitised solar cells, quantum efficiency higher than with prior art solid organic hole-transporters is reported. The melting point of a large quantity of organic charge transporting materials may be adjusted to a desired value by selecting suitable substituents. Accordingly, general advantages of the liquid state may be associated with the properties of organic charge transporting materials.
    Type: Application
    Filed: March 21, 2007
    Publication date: March 4, 2010
    Inventors: Henry J. Snaith, Shaik Mohammad Zakeeruddin, Michael Graetzel