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1.发明授权公开(公告)号：US12058877B2
公开(公告)日：2024-08-06
申请号：US17386009
申请日：2021-07-27
Inventor： Masaya Hirade , Hiroaki Iijima
CPC classification number: H10K39/32 , H10K30/353 , H10K85/211
Abstract: An imaging apparatus includes a semiconductor substrate; a first electrode; a second electrode; a photoelectric conversion layer disposed between the first electrode and the second electrode, and including a donor organic semiconductor material and an acceptor organic semiconductor material; a charge accumulation node positioned within the semiconductor substrate and electrically connected to the second electrode; and a first blocking layer disposed between the first electrode and the photoelectric conversion layer. The photoelectric conversion layer has an ionization potential of lower than or equal to 5.3 eV. The first blocking layer has an electron affinity lower than an electron affinity of the acceptor organic semiconductor material included in the photoelectric conversion layer. The imaging apparatus has spectral sensitivity in a near-infrared light region having wavelengths of greater than or equal to 650 nm and less than or equal to 3000 nm.
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公开(公告)号：US09991326B2
公开(公告)日：2018-06-05
申请号：US14988855
申请日：2016-01-06
Inventor： Hiroaki Iijima , Akihito Miyamoto , Kenichi Sasai , Yoshichika Osada , Masumi Izuchi
CPC classification number: H01L27/3276 , H01L27/3248 , H01L27/3258 , H01L27/3262 , H01L27/3274 , H01L51/0097 , H01L51/5246 , H01L51/5253 , H01L51/5256 , H01L2251/5338 , Y02E10/549
Abstract: The light-emitting device according to one aspect of the present disclosure includes a flexible substrate, a lower barrier layer positioned above the flexible substrate, a first light-emitting element and a second light-emitting element positioned above the lower barrier layer, a first upper barrier layer positioned above the first light-emitting element and including a first inorganic material, and a second upper barrier layer positioned above the second light-emitting element and including a second inorganic material. The first upper barrier layer and the second upper barrier layer are spaced from each other at least in a region between the first light-emitting element and the second light-emitting element.
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公开(公告)号：US11523037B2
公开(公告)日：2022-12-06
申请号：US17231647
申请日：2021-04-15
Inventor： Hiroaki Iijima , Masaya Hirade , Yuko Kishimoto
Abstract: A camera system includes a light source having a peak emission wavelength at room temperature in a near-infrared region, and an imaging device including a photoelectric conversion element that converts near-infrared light into an electric charge. An external quantum efficiency of the photoelectric conversion element has a first peak at a first wavelength longer than the peak emission wavelength, and the external quantum efficiency at the first wavelength is higher than the external quantum efficiency at the peak emission wavelength.
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公开(公告)号：US11818450B2
公开(公告)日：2023-11-14
申请号：US17975272
申请日：2022-10-27
Inventor： Hiroaki Iijima , Masaya Hirade , Yuko Kishimoto
Abstract: A camera system includes a light source having a peak emission wavelength at room temperature in a near-infrared region, and an imaging device including a photoelectric conversion element that converts near-infrared light into an electric charge. An external quantum efficiency of the photoelectric conversion element has a first peak at a first wavelength longer than the peak emission wavelength, and the external quantum efficiency at the first wavelength is higher than the external quantum efficiency at the peak emission wavelength.
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Patent Agency Ranking
公开(公告)号：US11447639B2
公开(公告)日：2022-09-20
申请号：US17013780
申请日：2020-09-07
Inventor： Hiroaki Iijima , Masaya Hirade , Manabu Nakata , Taniyuki Furuyama
IPC: C09B47/067 , H01L51/00 , H01L51/42
Abstract: A composition contains a phthalocyanine derivative represented by the following formula: where R1 to R8 are independently an alkyl group, M is Si, each of R9 and R10 is any one of substituents represented by the following formulas, R11 to R13 are independently an alkyl group, and R14 to R18 are independently an alkyl group or an aryl group:
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公开(公告)号：US20210258458A1
公开(公告)日：2021-08-19
申请号：US17231647
申请日：2021-04-15
Inventor： Hiroaki Iijima , Masaya Hirade , Yuko Kishimoto
Abstract: A camera system includes a light source having a peak emission wavelength at room temperature in a near-infrared region, and an imaging device including a photoelectric conversion element that converts near-infrared light into an electric charge. An external quantum efficiency of the photoelectric conversion element has a first peak at a first wavelength longer than the peak emission wavelength, and the external quantum efficiency at the first wavelength is higher than the external quantum efficiency at the peak emission wavelength.
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公开(公告)号：US12289552B2
公开(公告)日：2025-04-29
申请号：US18315514
申请日：2023-05-11
Inventor： Takamichi Yokoyama , Hiroaki Iijima , Morio Mitsuishi
Abstract: An imaging device includes a plurality of pixels and a voltage supply circuit. Each of the plurality of pixels includes: a pixel electrode; a counter electrode; a photoelectric conversion layer located between the pixel electrode and the counter electrode; and a charge blocking layer located between the pixel electrode and the photoelectric conversion layer. The charge blocking layer contains an impurity and has a first surface facing the photoelectric conversion layer and a second surface facing the pixel electrode. The concentration of the impurity on the first surface is higher than the concentration of the impurity on the second surface. The voltage supply circuit supplies a first voltage between the counter electrode and the pixel electrode in a first period and supplies a second voltage different from the first voltage between the counter electrode and the pixel electrode in a second period.
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公开(公告)号：US12247044B2
公开(公告)日：2025-03-11
申请号：US17216763
申请日：2021-03-30
Inventor： Hiroaki Iijima , Masaya Hirade , Yuko Kishimoto
Abstract: A composition contains a naphthalocyanine derivative represented by the following formula: where R1 to R8 are independently an alkyl group and R9 to R12 are independently an aryl group, and at least one hydrogen atom in at least one selected from the group consisting of R9, R10, R11, and R12 is substituted by an electron-withdrawing group.
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公开(公告)号：US11723224B2
公开(公告)日：2023-08-08
申请号：US17231614
申请日：2021-04-15
Inventor： Tatsunori Momose , Hiroaki Iijima , Masumi Izuchi , Seiji Takagi
CPC classification number: H10K39/32 , H10K30/10 , H10K30/211 , H10K30/353 , H10K85/211 , H10K85/311 , H10K85/6572
Abstract: An imaging apparatus includes a first electrode, a second electrode, and a photoelectric conversion layer located between the first electrode and the second electrode. The photoelectric conversion layer contains a first material, a second material, and a third material. The first material is a fullerene or a fullerene derivative. The second material is a donor-like organic semiconductor material. The average absorption coefficient in the visible light wavelength range of the third material is less than the average absorption coefficient in the visible light wavelength range of the first material.
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