Patents by Inventor Tetsuya KUREBAYASHI
Tetsuya KUREBAYASHI 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: 11387421Abstract: The present invention aims to provide a solar cell having high durability against deterioration due to moisture ingress from the side surfaces. The solar cell 10 of the present invention includes: first and second electrodes 12 and 17; a perovskite layer 14 provided between the first and second electrodes 12 and 17 and containing an organic-inorganic perovskite compound (A) represented by the formula RMX3 where R is an organic molecule, M is a metal atom, and X is a halogen atom; and a side-surface-protecting layer 15 provided on a peripheral side of the perovskite layer 14 to coat at least part of a side surface of the perovskite layer 14, the side-surface-protecting layer 15 containing at least one selected from the group consisting of a metal halide (B1) and an organometal halide (B2) or containing an organohalide (C).Type: GrantFiled: March 29, 2018Date of Patent: July 12, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Yuuichirou Fukumoto, Naohiro Fujinuma, Junichiro Anzai, Akinobu Hayakawa, Tetsuya Kurebayashi, Tetsuya Aita, Tomohito Uno
-
Patent number: 11335514Abstract: The present invention aims to provide a solar cell that includes a photoelectric conversion layer containing an organic-inorganic perovskite compound and that can exhibit high photoelectric conversion efficiency and high heat resistance. Provided is a solar cell including, in the stated order: a cathode; a photoelectric conversion layer; and an anode, the photoelectric conversion layer containing an organic-inorganic perovskite compound represented by the formula R-M-X3 where R is an organic molecule, M is a metal atom, and X is a halogen atom or a chalcogen atom, and a polymer having an acid dissociation constant pKa of 3 or less.Type: GrantFiled: September 20, 2018Date of Patent: May 17, 2022Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu Hayakawa, Tetsuya Kurebayashi, Naohiro Fujinuma, Masako Okamoto
-
Publication number: 20210288277Abstract: The present invention aims to provide a flexible solar cell having excellent high-temperature, high-humidity durability and excellent initial performance. The present invention relates to a flexible solar cell including, on a flexible substrate: an electrode; a transparent electrode; and a photoelectric conversion layer disposed between the electrode and the transparent electrode, the photoelectric conversion layer containing an organic-inorganic perovskite compound, the flexible substrate including an aluminum foil and an aluminum oxide film formed on the aluminum foil, the flexible substrate having a ratio of the thickness of the aluminum oxide film to the total thickness of the aluminum foil and the aluminum oxide film of 0.1% or higher and 15% or lower.Type: ApplicationFiled: September 27, 2017Publication date: September 16, 2021Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu HAYAKAWA, Mayumi YUKAWA, Tomohito UNO, Motohiko ASANO, Yuuichirou FUKUMOTO, Tetsuya KUREBAYASHI, Tetsuya AlTA, Takeharu MORITA
-
Publication number: 20200395494Abstract: The present invention aims to provide a method for producing a solar cell in which a continuous long scribed line is provided along the machine direction of a substrate so that failures due to breakage of the scribed line are reduced.Type: ApplicationFiled: March 13, 2019Publication date: December 17, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Tetsuya AITA, Motohiko ASANO, Akinobu HAYAKAWA, Tomohito UNO, Tetsuya KUREBAYASHI, Shunsuke KUNUGI, Takeharu MORITA
-
Publication number: 20200251674Abstract: The present invention aims to provide a solar cell excellent in photoelectric conversion efficiency, in which reduction in the photoelectric conversion efficiency due to continuous irradiation with light (photodegradation) is suppressed and the photoelectric conversion layer is less likely to suffer corrosion. The present invention provides a solar cell having a structure including: a cathode; an electron transport layer; a photoelectric conversion layer; and an anode stacked in the stated order, the photoelectric conversion layer including an organic-inorganic perovskite compound represented by the formula: R-M-X3 where R represents an organic molecule, M represents a metal atom, and X represents a halogen or chalcogen atom, the cathode being formed of a titanium material and having an oxide layer on at least one surface.Type: ApplicationFiled: February 1, 2017Publication date: August 6, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu HAYAKAWA, Yuuichirou FUKUMOTO, Motohiko ASANO, Mayumi YUKAWA, Tomohito UNO, Tetsuya KUREBAYASHI
-
Publication number: 20200161060Abstract: The present invention aims to provide a solar cell that includes a photoelectric conversion layer containing an organic-inorganic perovskite compound and that can exhibit high photoelectric conversion efficiency and high heat resistance. Provided is a solar cell including, in the stated order: a cathode; a photoelectric conversion layer; and an anode, the photoelectric conversion layer containing an organic-inorganic perovskite compound represented by the formula R-M-X3 where R is an organic molecule, M is a metal atom, and X is a halogen atom or a chalcogen atom, and a polymer having an acid dissociation constant pKa of 3 or less.Type: ApplicationFiled: September 20, 2018Publication date: May 21, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu HAYAKAWA, Tetsuya KUREBAYASHI, Naohiro FUJINUMA, Masako OKAMOTO
-
Publication number: 20200013974Abstract: The present invention aims to provide a solar cell having high durability against deterioration due to moisture ingress from the side surfaces. The solar cell 10 of the present invention includes: first and second electrodes 12 and 17; a perovskite layer 14 provided between the first and second electrodes 12 and 17 and containing an organic-inorganic perovskite compound (A) represented by the formula RMX3 where R is an organic molecule, M is a metal atom, and X is a halogen atom; and a side-surface-protecting layer 15 provided on a peripheral side of the perovskite layer 14 to coat at least part of a side surface of the perovskite layer 14, the side-surface-protecting layer 15 containing at least one selected from the group consisting of a metal halide (B1) and an organometal halide (B2) or containing an organohalide (C).Type: ApplicationFiled: March 29, 2018Publication date: January 9, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yuuichirou FUKUMOTO, Naohiro FUJINUMA, Junichiro ANZAI, Akinobu HAYAKAWA, Tetsuya KUREBAYASHI, Tetsuya AlTA, Tomohito UNO
-
Publication number: 20190379000Abstract: A first object of the present invention is to provide a solar cell having excellent photoelectric conversion efficiency and produced through a process including favorable scribing (e.g., mechanical patterning), and a method for producing the solar cell. A first aspect of the present invention provides a solar cell including, above a flexible substrate, an electrode, a transparent electrode, and a photoelectric conversion layer disposed between the electrode and the transparent electrode, the solar cell further including a hard film disposed between the flexible substrate and the electrode, the hard film containing a nitride, carbide, or boride, the nitride, carbide, or boride containing at least one element selected from the group consisting of titanium, zirconium, aluminum, silicon, magnesium, vanadium, chromium, molybdenum, tantalum, and tungsten.Type: ApplicationFiled: March 2, 2018Publication date: December 12, 2019Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Tetsuya AITA, Akinobu HAYAKAWA, Motohiko ASANO, Mayumi YUKAWA, Tomohito UNO, Tetsuya KUREBAYASHI, Takeharu MORITA
-
Publication number: 20190198256Abstract: The present invention aims to provide a solar cell having high photoelectric conversion efficiency that is less likely to decrease even under application of a voltage for a long period of time. Provided is a solar cell including: a cathode; a photoelectric conversion layer; and an anode in the stated order, the photoelectric conversion layer including an organic-inorganic perovskite compound represented by the formula: R-M-X3 wherein R represents an organic molecule, M represents a metal atom, and X represents a halogen or chalcogen atom, the solar cell further including, between the photoelectric conversion layer and the anode layer, a diffusion prevention layer including at least one selected from the group consisting of: metal oxides, metal nitrides, and metal oxynitrides each containing a group 6 to 15 metal in the periodic table; and carbon.Type: ApplicationFiled: September 20, 2017Publication date: June 27, 2019Applicant: SEKISUI CHEMICAL CO. LTD.Inventors: Akinobu HAYAKAWA, Mayumi YUKAWA, Tetsuya KUREBAYASHI, Tomohito UNO, Motohiko ASANO, Yuuichirou FUKUMOTO, Tetsuya AlTA, Takeharu MORITA
-
Patent number: 10297395Abstract: An object of the present invention is to provide a solar cell that is excellent in photoelectric conversion efficiency, suffers little degradation during encapsulation (initial degradation), has high-humidity durability, and is excellent in temperature cycle resistance. The present invention provides a solar cell including: a laminate having an electrode, a counter electrode, and a photoelectric conversion layer disposed between the electrode and the counter electrode; and an encapsulation material covering the counter electrode to encapsulate the laminate, the photoelectric conversion layer including an organic-inorganic perovskite compound represented by the formula: R-M-X3, R representing an organic molecule, M representing a metal atom, X representing a halogen atom or a chalcogen atom, the encapsulation material including a resin having at least one skeleton selected from the group consisting of polyisobutylene, polyisoprene, and polybutadiene.Type: GrantFiled: October 14, 2015Date of Patent: May 21, 2019Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu Hayakawa, Motohiko Asano, Tomohito Uno, Mayumi Horiki, Yuuichirou Fukumoto, Tetsuya Kurebayashi, Shunji Ohara
-
Publication number: 20180212086Abstract: The present invention aims to provide a solar cell having high photoelectric conversion efficiency and excellent high-temperature, high-humidity durability. The present invention relates to a solar cell including at least: a photoelectric conversion layer; a hole transport layer; and an anode, the hole transport layer being disposed between the photoelectric conversion layer and the anode, the hole transport layer containing a polymer containing a halogen atom and an organic semiconductor component (1), the polymer containing a halogen atom having a structure that contains a halogen atom and an electron-withdrawing group bonded to a hetero atom.Type: ApplicationFiled: July 29, 2016Publication date: July 26, 2018Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Tetsuya KUREBAYASHI, Tetsuya AITA, Mayumi YUKAWA, Motohiko ASANO, Tomohito UNO, Akinobu HAYAKAWA, Takeharu MORITA, Yuuichirou FUKUMOTO
-
Publication number: 20180175222Abstract: The present invention aims to provide a solar cell having high photoelectric conversion efficiency and excellent high-temperature durability, and an organic semiconductor material. The present invention relates to a solar cell having: an electrode; a counter electrode; a photoelectric conversion layer disposed between the electrode and the counter electrode; and a hole transport layer disposed between the photoelectric conversion layer and the counter electrode, the hole transport layer containing an ionic compound that contains an organic semiconductor cation and a fluorine-containing compound anion, the hole transport layer having a metal concentration of 1,000 ppm or lower.Type: ApplicationFiled: July 29, 2016Publication date: June 21, 2018Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu HAYAKAWA, Mayumi YUKAWA, Tomohito UNO, Motohiko ASANO, Yuuichirou FUKUMOTO, Tetsuya KUREBAYASHI
-
Publication number: 20170309408Abstract: The present invention aims to provide a solar cell that is excellent in photoelectric conversion efficiency, suffers little degradation during encapsulation (initial degradation), and has excellent durability. The present invention relates to a solar cell including: a laminate having an electrode, a counter electrode, and a photoelectric conversion layer disposed between the electrode and the counter electrode; and an inorganic layer covering the counter electrode to encapsulate the laminate, the photoelectric conversion layer including an organic-inorganic perovskite compound represented by the formula: R-M-X3, R representing an organic molecule, M representing a metal atom, X representing a halogen atom or a chalcogen atom, the inorganic layer containing a metal oxide, a metal nitride, or a metal oxynitride.Type: ApplicationFiled: October 14, 2015Publication date: October 26, 2017Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu HAYAKAWA, Motohiko ASANO, Tomohito UNO, Mayumi HORIKI, Yuuichirou FUKUMOTO, Tetsuya KUREBAYASHI, Shunji OHARA
-
Publication number: 20170278640Abstract: An object of the present invention is to provide a solar cell that is excellent in photoelectric conversion efficiency, suffers little degradation during encapsulation (initial degradation), has high-temperature durability, and is excellent in temperature cycle resistance. The present invention provides a solar cell including: a laminate having an electrode, a counter electrode, and a photoelectric conversion layer disposed between the electrode and the counter electrode; and an encapsulation material covering the counter electrode to encapsulate the laminate, the photoelectric conversion layer including an organic-inorganic perovskite compound represented by the formula: R-M-X3, R representing an organic molecule, M representing a metal atom, X representing a halogen atom or a chalcogen atom, the encapsulation material including a (meth)acrylic resin having a C atom/O atom ratio of 4 or more in the molecule.Type: ApplicationFiled: October 14, 2015Publication date: September 28, 2017Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu HAYAKAWA, Motohiko ASANO, Tomohito UNO, Mayumi HORIKI, Yuuichirou FUKUMOTO, Tetsuya KUREBAYASHI, Shunji OHARA
-
Publication number: 20170236652Abstract: An object of the present invention is to provide a solar cell that is excellent in photoelectric conversion efficiency, suffers little degradation during encapsulation (initial degradation), has high-humidity durability, and is excellent in temperature cycle resistance. The present invention provides a solar cell including: a laminate having an electrode, a counter electrode, and a photoelectric conversion layer disposed between the electrode and the counter electrode; and an encapsulation material covering the counter electrode to encapsulate the laminate, the photoelectric conversion layer including an organic-inorganic perovskite compound represented by the formula: R-M-X3, R representing an organic molecule, M representing a metal atom, X representing a halogen atom or a chalcogen atom, the encapsulation material including a resin having at least one skeleton selected from the group consisting of polyisobutylene, polyisoprene, and polybutadiene.Type: ApplicationFiled: October 14, 2015Publication date: August 17, 2017Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu HAYAKAWA, Motohiko ASANO, Tomohito UNO, Mayumi HORIKI, Yuuichirou FUKUMOTO, Tetsuya KUREBAYASHI, Shunji OHARA
-
Publication number: 20170221639Abstract: An object of the present invention is to provide a solar cell that is excellent in photoelectric conversion efficiency, suffers little degradation during encapsulation (initial degradation), and has high-temperature durability. The present invention provides a solar cell including: a laminate having an electrode, a counter electrode, and a photoelectric conversion layer disposed between the electrode and the counter electrode; and an encapsulation resin layer covering the counter electrode to encapsulate the laminate, the photoelectric conversion layer including an organic-inorganic perovskite compound represented by the formula: R-M-X3, R representing an organic molecule, M representing a metal atom, X representing a halogen atom or a chalcogen atom, the encapsulation resin layer including a resin having a solubility parameter, i.e., a SP value, of 10 or less.Type: ApplicationFiled: October 14, 2015Publication date: August 3, 2017Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Akinobu HAYAKAWA, Motohiko ASANO, Tomohito UNO, Mayumi HORIKI, Yuuichirou FUKUMOTO, Tetsuya KUREBAYASHI, Shunji OHARA