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).
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Patent number: 11355720Abstract: 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: GrantFiled: March 16, 2017Date of Patent: June 7, 2022Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)Inventors: Xiong Li, Chenyi Yi, Dongqin Bi, Shaik Mohammed Zakeeruddin, Michael Graetzel, Anders Hagfeldt
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Publication number: 20190044080Abstract: 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: ApplicationFiled: March 16, 2017Publication date: February 7, 2019Inventors: Xiong Li, Chenyi Yi, Dongqin Bi, Shaik Mohammed Zakeeruddin, Michael Graetzel, Anders Hagfeldt
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Patent number: 10038150Abstract: 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: GrantFiled: April 14, 2016Date of Patent: July 31, 2018Assignee: 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
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Publication number: 20160233439Abstract: 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: ApplicationFiled: April 14, 2016Publication date: August 11, 2016Inventors: Julian Burschka, Florian Kessler, Etienne Baranoff, Mohammad Khaja Nazeeruddin, Michael Graetzel, Shaik Mohammad Zakeeruddin, Anders Hagfeldt, Marina Freitag, Fabrizio Giordano
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Patent number: 8501046Abstract: 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: GrantFiled: February 27, 2012Date of Patent: August 6, 2013Assignees: 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
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Publication number: 20120283432Abstract: 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, 6Type: ApplicationFiled: February 27, 2012Publication date: November 8, 2012Applicants: MAX-PLANCK-GESEL. ZUR FOERDERUNG DER WISSEN. E.V., BASF SEInventors: 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
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Patent number: 8231809Abstract: 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: GrantFiled: November 6, 2006Date of Patent: July 31, 2012Assignees: 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
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Patent number: 7508009Abstract: 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: GrantFiled: August 2, 2001Date of Patent: March 24, 2009Assignee: Ntera, Ltd.Inventors: Marten Edwards, Anders Hagfeldt, Gerrit Boschloo, Sten-Erik Lindqvist
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Publication number: 20080269482Abstract: 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: ApplicationFiled: November 6, 2006Publication date: October 30, 2008Applicants: 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
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Publication number: 20050104136Abstract: 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: ApplicationFiled: August 2, 2001Publication date: May 19, 2005Inventors: Marten Edwards, Anders Hagfeldt, Gerrit Boschloo, Sten-Erik Lindqvist
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Patent number: 6881604Abstract: 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: GrantFiled: October 16, 2003Date of Patent: April 19, 2005Assignee: Forskarpatent i Uppsala ABInventors: Henrik Lindstrom, Sven Sodergren, Sten-Eric Linquist, Anders Hagfeldt
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Publication number: 20050003643Abstract: 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: ApplicationFiled: October 16, 2003Publication date: January 6, 2005Inventors: Henrik Lindstrom, Sven Sodergren, Sten-Eric Lindquist, Anders Hagfeldt
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Patent number: 6657119Abstract: 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: GrantFiled: December 14, 2001Date of Patent: December 2, 2003Assignee: Forskarpatent I Uppsala ABInventors: Sten-Eric Lindquist, Anders Hagfeldt, Henrik Lindstrom, Sven Södergren
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Publication number: 20020148721Abstract: 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: ApplicationFiled: December 14, 2001Publication date: October 17, 2002Inventors: Sten-Eric Lindquist, Anders Hagfeldt, Henrik Lindstrom, Sven Sodergren
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Publication number: 20020106447Abstract: A method for a binder-free manufacturing a nanostructured porous film, e.g.Type: ApplicationFiled: November 26, 2001Publication date: August 8, 2002Inventors: Henrik Lindstrom, Sven Sodergen, Sten-Eric Lindquist, Anders Hagfeldt
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Patent number: 6104372Abstract: 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: GrantFiled: October 31, 1997Date of Patent: August 15, 2000Inventors: Sten-Eric Lindquist, Anders Hagfeldt