Patents by Inventor Mengjin Yang
Mengjin Yang 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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Publication number: 20240138163Abstract: Methods and compositions for forming perovskite hole transport layers for use in manufacturing photovoltaic devices are described. Embodiments include using a plurality of hole transport materials to produce high-performance HTL contacts to improve performance and stability.Type: ApplicationFiled: February 11, 2022Publication date: April 25, 2024Applicants: First Solar, Inc., Alliance for Sustainable Energy, LLCInventors: Joseph Jonathan Berry, Le Chen, Axel Finn Palmstrom, Tze-Bin Song, Vera Steinmann, Natasha Teran, Aravamuthan Varadarajan, Mengjin Yang, Xueping Yi, Zhibo Zhao, Kai Zhu
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Patent number: 11616158Abstract: Methods are described that include contacting an alkyl ammonium metal halide film with an alkyl ammonium halide, where the alkyl ammonium metal halide film includes a first halogen and a metal, the alkyl ammonium halide includes a second halogen, such that the contacting forms an alkyl ammonium metal mixed-halide film that interfaces with the alkyl ammonium metal halide film, where the alkyl ammonium metal mixed-halide film includes the first halogen, the second halogen, and the metal.Type: GrantFiled: May 11, 2020Date of Patent: March 28, 2023Assignee: Alliance for Sustainable Energy, LLCInventors: Kai Zhu, Yixin Zhao, Mengjin Yang, Taiyang Zhang
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Patent number: 11387420Abstract: An aspect of the present disclosure is a method that includes exchanging at least a portion of a first cation of a perovskite solid with a second cation, where the exchanging is performed by exposing the perovskite solid to a precursor of the second cation, such that the precursor of the second cation oxidizes to form the second cation and the first cation reduces to form a precursor of the first cation.Type: GrantFiled: July 17, 2019Date of Patent: July 12, 2022Assignees: Alliance for Sustainable Energy, LLC, Brown UniversityInventors: Kai Zhu, Mengjin Yang, Yuanyuan Zhou, Nitin P. Padture
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Patent number: 11174276Abstract: The present disclosure relates to a method that includes treating a liquid that includes a first precursor at a concentration C1, a second precursor at a concentration C2, a third precursor at a concentration C3, and an additive at a concentration C4, where the treating results in a perovskite, each of C1, C2, and C3 are between 0.Type: GrantFiled: September 5, 2018Date of Patent: November 16, 2021Assignee: Alliance for Sustainable Energy, LLCInventors: Kai Zhu, Mengjin Yang, Donghoe Kim
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Patent number: 10910569Abstract: An aspect of the present disclosure is a method that includes applying a solution that includes a first solvent, a halogen-containing precursor, and a metal halide to a substrate to form a coating of the solution on the substrate, contacting the coating with a second solvent to form a first plurality of organo-metal halide perovskite crystals on the substrate, and thermally treating the first plurality of organo-metal halide perovskite crystals, such that at least a portion of the first plurality of organo-metal halide perovskite crystals is converted to a second plurality of organo-metal halide perovskite crystals on the substrate. The halogen-containing precursor and the metal halide are present in the solution at a molar ratio of the halogen-containing precursor to the metal halide between about 1.01:1.0 and about 2.0:1.0, and a property of the second plurality of organo-metal halide perovskite crystals is improved relative to a property of the first plurality of organo-metal halide perovskite crystals.Type: GrantFiled: May 18, 2016Date of Patent: February 2, 2021Assignee: Alliance for Sustainable Energy, LLCInventors: Kai Zhu, Mengjin Yang, Yuanyuan Zhou, Nitin Prabhakar Padture
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Publication number: 20200294728Abstract: The present disclosure relates to a perovskite-containing solar cell module that includes a glass substrate; a first cell; and a second cell, where each cell includes, in order, a first contact layer that includes fluorine-doped tin oxide, positioned on the substrate, and having an outside surface and a first thickness; an electron transfer layer that includes TiO2 and having a second thickness between 1 nm and 10 ?m; an active layer that includes the perovskite and having a third thickness; a hole transfer layer that includes spiro-OMeTAD and having a fourth thickness; and a second contact layer that includes copper and having a fifth thickness. In addition, the first cell and the second cell are electrically connected by a first gap filled with the copper, and the first gap passes through the third thickness, the fourth thickness, and substantially through the second thickness to terminate at the outside surface.Type: ApplicationFiled: October 4, 2018Publication date: September 17, 2020Inventors: Kai ZHU, Mengjin YANG, Talysa Renae KLEIN, Marinus Franciscus Antonius Maria van HEST, Zhen LI
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Publication number: 20200279964Abstract: Methods are described that include contacting an alkyl ammonium metal halide film with an alkyl ammonium halide, where the alkyl ammonium metal halide film includes a first halogen and a metal, the alkyl ammonium halide includes a second halogen, such that the contacting forms an alkyl ammonium metal mixed-halide film that interfaces with the alkyl ammonium metal halide film, where the alkyl ammonium metal mixed-halide film includes the first halogen, the second halogen, and the metal.Type: ApplicationFiled: May 11, 2020Publication date: September 3, 2020Inventors: Kai ZHU, Yixin ZHAO, Mengjin YANG, Taiyang ZHANG
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Publication number: 20200239499Abstract: The present disclosure relates to a method that includes treating a liquid that includes a first precursor at a concentration C1, a second precursor at a concentration C2, a third precursor at a concentration C3, and an additive at a concentration C4, where the treating results in a perovskite, each of C1, C2, and C3 are between 0.Type: ApplicationFiled: September 5, 2018Publication date: July 30, 2020Inventors: Kai ZHU, Mengjin YANG, Donghoe KIM
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Patent number: 10700229Abstract: Methods are described that include contacting an alkyl ammonium metal halide film with an alkyl ammonium halide, where the alkyl ammonium metal halide film includes a first halogen and a metal, the alkyl ammonium halide includes a second halogen, such that the contacting forms an alkyl ammonium metal mixed-halide film that interfaces with the alkyl ammonium metal halide film, where the alkyl ammonium metal mixed-halide film includes the first halogen, the second halogen, and the metal.Type: GrantFiled: November 17, 2016Date of Patent: June 30, 2020Assignee: Alliance for Sustainable Energy, LLCInventors: Kai Zhu, Yixin Zhao, Mengjin Yang, Taiyang Zhang
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Patent number: 10586657Abstract: Described herein is a device that includes an alkyl ammonium metal halide perovskite layer, and a nanostructured semiconductor layer in physical contact with the alkyl ammonium metal halide perovskite layer. The alkyl ammonium metal halide perovskite layer may include methyl ammonium cations. The alkyl ammonium metal halide perovskite layer may include anions of at least one of chlorine, bromine, astatine, and/or iodine. The alkyl ammonium metal halide perovskite layer may include cations of a metal in a 2+ valence state. The metal may include at least one of lead, tin, and/or germanium.Type: GrantFiled: November 30, 2016Date of Patent: March 10, 2020Assignee: Alliance for Sustainable Energy, LLCInventors: Jeffrey Lee Blackburn, Kai Zhu, Mengjin Yang, Anne-Marie Dowgiallo, Rachelle Rosemarie Ihly
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Publication number: 20190393437Abstract: An aspect of the present disclosure is a method that includes exchanging at least a portion of a first cation of a perovskite solid with a second cation, where the exchanging is performed by exposing the perovskite solid to a precursor of the second cation, such that the precursor of the second cation oxidizes to form the second cation and the first cation reduces to form a precursor of the first cation.Type: ApplicationFiled: July 17, 2019Publication date: December 26, 2019Inventors: Kai Zhu, Mengjin Yang, Yuanyuan Zhou, Nitin P. Padture
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Publication number: 20190386232Abstract: An aspect of the present disclosure is a method that includes exchanging at least a portion of a first cation of a perovskite solid with a second cation, where the exchanging is performed by exposing the perovskite solid to a precursor of the second cation, such that the precursor of the second cation oxidizes to form the second cation and the first cation reduces to form a precursor of the first cation.Type: ApplicationFiled: July 17, 2019Publication date: December 19, 2019Inventors: Kai Zhu, Mengjin Yang, Yuanyuan Zhou, Nitin P. Padture
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Patent number: 10411209Abstract: An aspect of the present disclosure is a method that includes exchanging at least a portion of a first cation of a perovskite solid with a second cation, where the exchanging is performed by exposing the perovskite solid to a precursor of the second cation, such that the precursor of the second cation oxidizes to form the second cation and the first cation reduces to form a precursor of the first cation.Type: GrantFiled: February 21, 2017Date of Patent: September 10, 2019Assignee: Alliance for Sustainable Energy, LLCInventors: Kai Zhu, Mengjin Yang, Yuanyuan Zhou, Nitin P. Padture
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Publication number: 20180374651Abstract: Described herein is a device that includes an alkyl ammonium metal halide perovskite layer, and a nanostructured semiconductor layer in physical contact with the alkyl ammonium metal halide perovskite layer. The alkyl ammonium metal halide perovskite layer may include methyl ammonium cations. The alkyl ammonium metal halide perovskite layer may include anions of at least one of chlorine, bromine, astatine, and/or iodine. The alkyl ammonium metal halide perovskite layer may include cations of a metal in a 2+ valence state. The metal may include at least one of lead, tin, and/or germanium.Type: ApplicationFiled: November 30, 2016Publication date: December 27, 2018Inventors: Jeffrey Lee Blackburn, Kai Zhu, Mengjin Yang, Anne-Marie Dowgiallo, Rachelle Rosemarie Ihly
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Publication number: 20180351019Abstract: Methods are described that include contacting an alkyl ammonium metal halide film with an alkyl ammonium halide, where the alkyl ammonium metal halide film includes a first halogen and a metal, the alkyl ammonium halide includes a second halogen, such that the contacting forms an alkyl ammonium metal mixed-halide film that interfaces with the alkyl ammonium metal halide film, where the alkyl ammonium metal mixed-halide film includes the first halogen, the second halogen, and the metal.Type: ApplicationFiled: November 17, 2016Publication date: December 6, 2018Inventors: Kai Zhu, Yixin ZHAO, Mengjin Yang, Taiyang Zhang
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Publication number: 20180151813Abstract: An aspect of the present disclosure is a method that includes applying a solution that includes a first solvent, a halogen-containing precursor, and a metal halide to a substrate to form a coating of the solution on the substrate, contacting the coating with a second solvent to form a first plurality of organo-metal halide perovskite crystals on the substrate, and thermally treating the first plurality of organo-metal halide perovskite crystals, such that at least a portion of the first plurality of organo-metal halide perovskite crystals is converted to a second plurality of organo-metal halide perovskite crystals on the substrate. The halogen-containing precursor and the metal halide are present in the solution at a molar ratio of the halogen-containing precursor to the metal halide between about 1.01:1.0 and about 2.0:1.0, and a property of the second plurality of organo-metal halide perovskite crystals is improved relative to a property of the first plurality of organo-metal halide perovskite crystals.Type: ApplicationFiled: May 18, 2016Publication date: May 31, 2018Inventors: Kai ZHU, Mengjin YANG, Yuanyuan ZHOU, Nitin Prabhakar PADTURE
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Publication number: 20170244057Abstract: An aspect of the present disclosure is a method that includes exchanging at least a portion of a first cation of a perovskite solid with a second cation, where the exchanging is performed by exposing the perovskite solid to a precursor of the second cation, such that the precursor of the second cation oxidizes to form the second cation and the first cation reduces to form a precursor of the first cation.Type: ApplicationFiled: February 21, 2017Publication date: August 24, 2017Inventors: Kai Zhu, Mengjin Yang, Yuanyuan Zhou, Nitin P. Padture