Patents by Inventor Anders Hagfeldt

Anders Hagfeldt 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: 11355720
    Abstract: The present invention relates to a method for producing a solid state solar cell, including the steps of providing a conductive support layer or current collector, applying a metal oxide layer on the conducting support layer, applying at least one sensitizer layer onto the metal oxide layer or onto a first optional layer covering the metal oxide layer, the first optional layer including a charge transporting layer, applying a second optional layer onto the sensitizer layer, the second optional layer being selected from a charge transporting layer, a protective layer, or a combination of both layers, and providing a counter electrode or a metal electrode onto the sensitizer layer or the second optional layer. The at least one sensitizer layer includes an organic-inorganic or metal halide perovskite and is treated by the application of a vacuum before the annealing of the sensitizer.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: June 7, 2022
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Xiong Li, Chenyi Yi, Dongqin Bi, Shaik Mohammed Zakeeruddin, Michael Graetzel, Anders Hagfeldt
  • Publication number: 20190044080
    Abstract: The present invention relates to a method for producing a solid state solar cell, including the steps of providing a conductive support layer or current collector, applying a metal oxide layer on the conducting support layer, applying at least one sensitizer layer onto the metal oxide layer or onto a first optional layer covering the metal oxide layer, the first optional layer including a charge transporting layer, applying a second optional layer onto the sensitizer layer, the second optional layer being selected from a charge transporting layer, a protective layer, or a combination of both layers, and providing a counter electrode or a metal electrode onto the sensitizer layer or the second optional layer. The at least one sensitizer layer includes an organic-inorganic or metal halide perovskite and is treated by the application of a vacuum before the annealing of the sensitizer.
    Type: Application
    Filed: March 16, 2017
    Publication date: February 7, 2019
    Inventors: Xiong Li, Chenyi Yi, Dongqin Bi, Shaik Mohammed Zakeeruddin, Michael Graetzel, Anders Hagfeldt
  • Patent number: 10038150
    Abstract: The invention relates to electrochemical devices comprising complexes of cobalt comprising at least one ligand with a 5- or six membered, N-containing heteroring. The complex are useful as p- and n-dopants, as over of electrochemical devices, in particular in organic semiconductors. The complexes are further useful as over-discharge prevention and overvoltage protection agents.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: July 31, 2018
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Julian Burschka, Florian Kessler, Etienne Baranoff, Mohammad Khaja Nazeeruddin, Michael Graetzel, Shaik Mohammed Zakeeruddin, Anders Hagfeldt, Marina Freitag, Fabrizio Giordano
  • Publication number: 20160233439
    Abstract: The invention relates to electrochemical devices comprising complexes of cobalt comprising at least one ligand with a 5- or six membered, N-containing heteroring. The complex are useful as p- and n-dopants, as over of electrochemical devices, in particular in organic semiconductors. The complexes are further useful as over-discharge prevention and overvoltage protection agents.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 11, 2016
    Inventors: Julian Burschka, Florian Kessler, Etienne Baranoff, Mohammad Khaja Nazeeruddin, Michael Graetzel, Shaik Mohammad Zakeeruddin, Anders Hagfeldt, Marina Freitag, Fabrizio Giordano
  • Patent number: 8501046
    Abstract: Use of rylene derivatives I with the following definition of the variables: X together both —COOM; Y a radical -L-NR1R2??(y1) -L-Z—R3??(y2) the other radical hydrogen; together both hydrogen; R is optionally substituted (het)aryloxy, (het)arylthio; P is —NR1R2; B is alkylene; optionally substituted phenylene; combinations thereof; A is —COOM; —SO3M; —PO3M2; D is optionally substituted phenylene, naphthylene, pyridylene; M is hydrogen; alkali metal cation; [NR5]4+; L is a chemical bond; optionally indirectly bonded, optionally substituted (het)arylene radical; R1, R2 are optionally substituted (cyclo)alkyl, (het)aryl; together optionally substituted ring comprising the nitrogen atom; Z is —O—; —S—; R3 is optionally substituted alkyl, (het)aryl; R? is hydrogen; optionally substituted (cyclo)alkyl, (het)aryl; R5 is hydrogen; optionally substituted alkyl (het)aryl; m is 0, 1, 2; n, p m=0: 0, 2, 4 where: n+p=2, 4, if appropriate 0; m=1: 0, 2, 4 where: n+p=0, 2, 4; m=2: 0, 4, 6 where:
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: August 6, 2013
    Assignees: BASF SE, Max-Planck-Gesellschaft zur Foerderung der Wissenschaften E.V.
    Inventors: Neil Gregory Pschirer, Felix Eickemeyer, Jan Schoenbeboom, Jianqiang Qu, Martin Koenemann, Klaus Muellen, Chen Li, Andreas Herrmann, Peter Erk, Gero Nordmann, Alfred Kuhn, Anders Hagfeldt, Tomas Edvinsson
  • Publication number: 20120283432
    Abstract: Use of rylene derivatives I with the following definition of the variables: X together both —COOM; Y a radical -L-NR1R2??(y1) -L-Z—R3??(y2) the other radical hydrogen; together both hydrogen; R is optionally substituted (het)aryloxy, (het)arylthio; P is —NR1R2; B is alkylene; optionally substituted phenylene; combinations thereof; A is —COOM; —SO3M; —PO3M2; D is optionally substituted phenylene, naphthylene, pyridylene; M is hydrogen; alkali metal cation; [NR5]4+; L is a chemical bond; optionally indirectly bonded, optionally substituted (het)arylene radical; R1, R2 are optionally substituted (cyclo)alkyl, (het)aryl; together optionally substituted ring comprising the nitrogen atom; Z is —O—; —S—; R3 is optionally substituted alkyl, (het)aryl; R? is hydrogen; optionally substituted (cyclo)alkyl, (het)aryl; R5 is hydrogen; optionally substituted alkyl (het)aryl; m is 0, 1, 2; n, p m=0: 0, 2, 4 where: n+p=2, 4, if appropriate 0; m=1: 0, 2, 4 where: n+p=0, 2, 4; m=2: 0, 4, 6
    Type: Application
    Filed: February 27, 2012
    Publication date: November 8, 2012
    Applicants: MAX-PLANCK-GESEL. ZUR FOERDERUNG DER WISSEN. E.V., BASF SE
    Inventors: Neil Gregory PSCHIRER, Felix Eickemeyer, Jan Schöneboom, Jianqiang Qu, Martin Könemann, Klaus Müllen, Chen Li, Andreas Herrmann, Peter Erk, Gero Nordmann, Alfred Kuhn, Anders Hagfeldt, Tomas Edvinsson
  • Patent number: 8231809
    Abstract: Rylene derivatives useful in solar cells, where the rylene derivatives are represented by formula I where each X group is joined to form a six-membered ring, one Y group is an amine group, one Y group is a hydrogen atom, each R group is an alkoxy group, m is 1, n is 4, and P is 0.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: July 31, 2012
    Assignees: BASF Aktiengesellschaft, Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
    Inventors: Neil Gregory Pschirer, Felix Eickemeyer, Jan Schoeneboom, Jianqiang Qu, Martin Koenemann, Klaus Muellen, Chen Li, Andreas Herrmann, Peter Erk, Gero Nordmann, Alfred Kuhn, Anders Hagfeldt, Tomas Edvinsson
  • Patent number: 7508009
    Abstract: An electrochromic device, comprising a first electrode (3), a second electrode (5) and an electrolyte (4) separating the electrodes (3, 5), where at least one of said first and second electrodes includes an electrically active structure which have an at least dual state visual appearance depending on the potential difference between the first and the second electrode.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: March 24, 2009
    Assignee: Ntera, Ltd.
    Inventors: Marten Edwards, Anders Hagfeldt, Gerrit Boschloo, Sten-Erik Lindqvist
  • Publication number: 20080269482
    Abstract: Use of rylene derivatives I with the following definition of the variables: X together both —COOM; Y a radical -L-NR1R2 ??(y1) -L-Z-R3 ??(y2) the other radical hydrogen; together both hydrogen; R is optionally substituted (het)aryloxy, (het)arylthio; P is —NR1R2; B is alkylene; optionally substituted phenylene; combinations thereof; A is —COOM; —SO3M; —PO3M2; D is optionally substituted phenylene, naphthylene, pyridylene; M is hydrogen; alkali metal cation; [NR5]4+; L is a chemical bond; optionally indirectly bonded, optionally substituted (het)arylene radical; R1, R2 are optionally substituted (cyclo)alkyl, (het)aryl; together optionally substituted ring comprising the nitrogen atom; Z is —O—; —S—; R3 is optionally substituted alkyl, (het)aryl; R? is hydrogen; optionally substituted (cyclo)alkyl, (het)aryl; R5 is hydrogen; optionally substituted alkyl (het)aryl; m is 0, 1, 2; n, p m=0: 0, 2, 4 where: n+p=2, 4, if appropriate 0; m=1: 0, 2, 4 where: n+p=0, 2, 4; m=2: 0, 4,
    Type: Application
    Filed: November 6, 2006
    Publication date: October 30, 2008
    Applicants: BASF SE, MAX-PLANCK-GESEL.ZUR FOERDERUNG DER WISSEN. E.V.
    Inventors: Neil Gregory Pschirer, Felix Eickemeyer, Jan Schoneboom, Jianqiang Qu, Martin Konemann, Klaus Mullen, Chen Li, Andreas Herrmann, Peter Erk, Gero Nordmann, Alfred Kuhn, Anders Hagfeldt, Tomas Edvinsson
  • Publication number: 20050104136
    Abstract: An electrochromic device, comprising a first electrode (3), a second electrode (5) and an electrolyte (4) separating the electrodes (3, 5), where at least one of said first and second electrodes includes an electrically active structure which have an at least dual state visual appearance depending on the potential difference between the first and the second electrode.
    Type: Application
    Filed: August 2, 2001
    Publication date: May 19, 2005
    Inventors: Marten Edwards, Anders Hagfeldt, Gerrit Boschloo, Sten-Erik Lindqvist
  • Patent number: 6881604
    Abstract: A method for a binder-free manufacturing a nanostructured porous film, e.g. for use in solar cells, includes the steps of preparing a suspension of semi-conducting nanometer-sized particles in a volatile suspending agent (21), depositing the particle suspension on a conducting substrate, removing the suspending agent by evaporation (31), thereby leaving a particle layer on said substrate and compressing (P) the deposited particle layer for mechanical and electrical interconnection.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: April 19, 2005
    Assignee: Forskarpatent i Uppsala AB
    Inventors: Henrik Lindstrom, Sven Sodergren, Sten-Eric Linquist, Anders Hagfeldt
  • Publication number: 20050003643
    Abstract: A method for a binder-free manufacturing a nanostructured porous film, e.g. for use in solar cells, includes the steps of preparing a suspension of semi-conducting nanometer-sized particles in a volatile suspending agent (21), depositing the particle suspension on a conducting substrate, removing the suspending agent by evaporation (31), thereby leaving a particle layer on said substrate and compressing (P) the deposited particle layer for mechanical and electrical interconnection.
    Type: Application
    Filed: October 16, 2003
    Publication date: January 6, 2005
    Inventors: Henrik Lindstrom, Sven Sodergren, Sten-Eric Lindquist, Anders Hagfeldt
  • Patent number: 6657119
    Abstract: An electrolytic cell assembly, e.g. for use in solar panels, is formed by placing coated metal wires (7,9) between the conducting layers (3,6) of two conducting glasses (1,4), respectively. A pressure force (F) is applied to press the metal wires between the conducting layers and to break the coating of the wires, thereby bringing the metal wires in electrical contact with the conducting layers. The coating protects the wires from harmful contact with an electrolyte inside the cell.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: December 2, 2003
    Assignee: Forskarpatent I Uppsala AB
    Inventors: Sten-Eric Lindquist, Anders Hagfeldt, Henrik Lindstrom, Sven Södergren
  • Publication number: 20020148721
    Abstract: An electrolytic cell assembly, e.g. for use in solar panels, is formed by placing coated metal wires (7, 9) between the conducting layers (3, 6) of two conducting glasses (1, 4), respectively. A pressure force (F) is applied to press the metal wires between the conducting layers and to break the coating of the wires, thereby bringing the metal wires in electrical contact with the conducting layers. The coating protects the wires from harmful contact with an electrolyte inside the cell.
    Type: Application
    Filed: December 14, 2001
    Publication date: October 17, 2002
    Inventors: Sten-Eric Lindquist, Anders Hagfeldt, Henrik Lindstrom, Sven Sodergren
  • Publication number: 20020106447
    Abstract: A method for a binder-free manufacturing a nanostructured porous film, e.g.
    Type: Application
    Filed: November 26, 2001
    Publication date: August 8, 2002
    Inventors: Henrik Lindstrom, Sven Sodergen, Sten-Eric Lindquist, Anders Hagfeldt
  • Patent number: 6104372
    Abstract: A solar cell driven display is provided with battery backup, where the included components, solar cell and/or battery forms an integrated system based on porous titanium dioxide or other metal oxide films. The solar cell charges the battery and/or operates as a power source for the display. The solar cell and battery as display each include a pair of film electrodes on, for example, glass. They are interconnected by an electrolyte, which brings about charges between the paired electrodes. The solar cell is of a photoelectrochemical type and the battery of a rocking-chair type. By intercalation, for example, by lithium ions in the oxide film it is colored, for example, titanium dioxide becomes blue. Then it may simultaneously operate as a display portion but also as a portion in an electrochemical element of a battery.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: August 15, 2000
    Inventors: Sten-Eric Lindquist, Anders Hagfeldt