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公开(公告)号：US11935971B2
公开(公告)日：2024-03-19
申请号：US17821818
申请日：2022-08-24
Inventor： Tomoyasu Yokoyama , Ryosuke Kikuchi , Yu Nishitani
IPC: H01L31/0224 , H01L31/0264
CPC classification number: H01L31/022425 , H01L31/0264
Abstract: A solar cell according to the present disclosure includes a first electrode, a second electrode, a photoelectric conversion layer disposed between the first electrode and the second electrode, and an electron transport layer disposed between the first electrode and the photoelectric conversion layer. At least one electrode selected from the group consisting of the first electrode and the second electrode has a light-transmitting property. The photoelectric conversion layer contains a perovskite compound composed of a monovalent cation, a divalent cation, and a halogen anion. The electron transport layer contains a metal oxynitride having electron conductivity. The metal oxynitride has an electrical conductivity of greater than or equal to 1×10−7 S/cm.
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公开(公告)号：US11737291B2
公开(公告)日：2023-08-22
申请号：US17471708
申请日：2021-09-10
Inventor： Tomoyasu Yokoyama , Yu Nishitani , Shohei Kusumoto , Yumi Miyamoto
IPC: H10K30/10 , H10K30/81 , H10K102/00
CPC classification number: H10K30/10 , H10K30/81 , H10K2102/00
Abstract: A solar cell according to the present disclosure includes a first electrode, a second electrode, a photoelectric conversion layer located between the first electrode and the second electrode, and a first electron transport layer located between the first electrode and the photoelectric conversion layer, in which at least one selected from the group consisting of the first electrode and the second electrode is translucent, the photoelectric conversion layer contains a perovskite compound composed of a monovalent cation, a Sn cation, and a halogen anion, and the first electron transport layer contains a niobium oxide halide.
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Patent Agency Ranking
公开(公告)号：US11626258B2
公开(公告)日：2023-04-11
申请号：US17483637
申请日：2021-09-23
Inventor： Taisuke Matsui , Ryosuke Kikuchi , Tomoyasu Yokoyama , Fumiyasu Oba , Yu Kumagai
Abstract: A solar cell according to the present disclosure includes a first electrode, a second electrode, a photoelectric conversion layer located between the first electrode and the second electrode, and a semiconductor layer located between the first electrode and the photoelectric conversion layer, in which at least one selected from the group consisting of the first electrode and the second electrode is translucent, and the semiconductor layer contains a compound containing Na, Zn, and O.
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公开(公告)号：US12142443B2
公开(公告)日：2024-11-12
申请号：US17660214
申请日：2022-04-22
Inventor： Shohei Kusumoto , Kenji Kawano , Tomoyasu Yokoyama
Abstract: A solar cell includes a first electrode, a second electrode, a photoelectric conversion layer interposed between the first and second electrodes, and a hole transport layer interposed between the first electrode and the photoelectric conversion layer. At least one electrode selected from the group consisting of the first and second electrodes is transparent to light. The photoelectric conversion layer includes a perovskite compound constituted by a monovalent cation, a divalent cation, and a halogen anion. The monovalent cation includes at least one selected from the group consisting of a formamidinium cation and a methylammonium cation. The divalent cation includes a Sn cation. The halogen anion includes an iodide ion. The hole transport layer includes 4,4′,4″-tris[9,9-dimethyl-2-fluorenyl(4-methoxy-phenyl)amino]triphenylamine.
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公开(公告)号：US11626527B2
公开(公告)日：2023-04-11
申请号：US16432861
申请日：2019-06-05
Inventor： Tomoyasu Yokoyama , Kenji Kawano , Yumi Miyamoto
IPC: H01L51/44 , H01L31/055 , H01L51/42
Abstract: Provided is a solar cell including a first electrode, a second electrode, a light-absorbing layer located between the first electrode and the second electrode, and an intermediate layer located between the light-absorbing layer and at least one electrode selected from the group consisting of the first electrode and the second electrode. The light-absorbing layer contains a perovskite compound represented by a chemical formula ASnX3 (where A is a monovalent cation and X is a halogen anion). The intermediate layer is in contact with the light-absorbing layer. The at least one electrode selected from the group consisting of the first electrode and the second electrode has light-transmissive property. The intermediate layer contains at least one selected from the group consisting of (4-(1′,5′-dihydro-1′-methyl-2′H-[5,6]fullereno-C60-Ih[1,9-c]pyrrol-2′-yl)benzoic acid) and fullerene C60.
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公开(公告)号：US11328876B2
公开(公告)日：2022-05-10
申请号：US16035597
申请日：2018-07-14
Inventor： Takeyuki Sekimoto , Michio Suzuka , Tomoyasu Yokoyama , Yoshiko Miyamoto , Taisuke Matsui
Abstract: A light-absorbing material contains a compound represented by the composition formula HC(NH2)2SnI3 and having a perovskite structure. A solid-state 1H-NMR spectrum, which is obtained by 1H-14N HMQC measurement in two-dimensional NMR at 25° C., of the compound includes a first peak at 6.9 ppm and a second peak at 7.0 ppm. A peak intensity of the first peak is equal to 80% or more of a peak intensity of the second peak.
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公开(公告)号：US10115999B2
公开(公告)日：2018-10-30
申请号：US15158630
申请日：2016-05-19
Inventor： Satoru Ohuchi , Yuta Sugimoto , Toshiro Kume , Tomoyasu Yokoyama
IPC: H01M10/0525 , H01M10/0585 , H01M4/525 , H01M10/0562
Abstract: An all-solid-state lithium-ion secondary battery includes a cathode active material, an anode active material, a solid electrolyte between the cathode and anode active materials, and an intermediate layer between the solid electrolyte and the cathode active material. The cathode and anode active materials are able to store and release a lithium ion. The solid electrolyte has lithium ion conductivity. The intermediate layer is constituted of elements including all elements constituting the cathode active material. A lithium ion in the intermediate layer is less ionic than that in the cathode active material.
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