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公开(公告)号:US20210126213A1
公开(公告)日:2021-04-29
申请号:US16981793
申请日:2019-03-13
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Satoshi SEO , Tsunenori SUZUKI , Yusuke TAKITA , Takumu OKUYAMA , Anna TADA
IPC: H01L51/50
Abstract: A novel light-emitting device is provided. Alternatively, a light-emitting device with favorable emission efficiency is provided. Alternatively, a light-emitting device with a favorable lifetime is provided. Alternatively, a light-emitting device with a low driving voltage is provided. Provided is a light-emitting device including an anode, a cathode, and a layer including an organic compound that is positioned between the anode and the cathode, in which the layer including the organic compound includes a first layer, a second layer, and a light-emitting layer in this order from the anode side, the first layer includes a first substance and a second substance, the second layer includes a third substance, the first substance is an organic compound a HOMO level of which is higher than or equal to −5.8 eV and lower than or equal to −5.4 eV, the second substance is a substance that has an electron-acceptor property with respect to the first substance, and the third substance is an organic compound having a structure in which at least two substituents comprising carbazole rings are bonded to a naphthalene ring.
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公开(公告)号:US20240357929A1
公开(公告)日:2024-10-24
申请号:US18682365
申请日:2022-08-03
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor: Yasuhiro NIIKURA , Daisuke KUBOTA , Taisuke KAMADA , Sachiko KAWAKAMI , Anna TADA , Satoshi SEO
IPC: H10K85/60 , H10K30/40 , H10K39/34 , H10K101/30
CPC classification number: H10K85/6572 , H10K30/40 , H10K39/34 , H10K85/636 , H10K85/6576 , H10K2101/30
Abstract: A novel photoelectric conversion device that is highly convenient, useful, or reliable is provided. A photoelectric conversion device (550S) includes a first electrode (551S), a second electrode (552S), and a unit (103S); the unit (103S) is interposed between the first electrode (551S) and the second electrode (552S); the unit (103S) includes a first layer (113) and a second layer (114S); and the first layer (113) is interposed between the second electrode (552S) and the second layer (114S). The first layer (113) contains a first organic compound ETM, the first organic compound ETM has an electron-transport property, and the first organic compound ETM has a LUMO level in a first level LUMO1. The second layer (114S) contains a second organic compound CTM, the second organic compound CTM emits delayed fluorescent light at room temperature, and the second organic compound CTM has a LUMO level in a second level LUMO2. A difference between the second level LUMO2 and the first level LUMO1 is less than or equal to 1.0 eV.
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13.
公开(公告)号:US20240260454A1
公开(公告)日:2024-08-01
申请号:US18575952
申请日:2022-06-09
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor: Yasuhiro NIIKURA , Daisuke KUBOTA , Taisuke KAMADA , Sachiko KAWAKAMI , Anna TADA , Satoshi SEO
CPC classification number: H10K85/636 , H10K85/622 , H10K85/626 , H10K85/631 , H10K85/633 , H10K85/6572 , H10K85/6576 , H10K30/30 , H10K39/34 , H10K85/615 , H10K85/6574
Abstract: A light-receiving device with a novel structure is provided. The provided light-receiving device includes a light-receiving layer between a pair of electrodes. The light-receiving layer includes an active layer. The active layer contains a first organic compound and a second organic compound. An absorption spectrum of the first organic compound has one or more peaks. At least one peak wavelength of the peaks is greater than or equal to 400 nm and less than or equal to 700 nm. The HOMO level of the second organic compound is higher than the HOMO level of the first organic compound. The difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is preferably higher than or equal to 0.2 eV and lower than or equal to 1.5 eV and further preferably higher than or equal to 0.4 eV and lower than or equal to 1.5 eV.
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公开(公告)号:US20230329105A1
公开(公告)日:2023-10-12
申请号:US18130684
申请日:2023-04-04
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor: Satoko NUMATA , Harue OSAKA , Sachiko KAWAKAMI , Takashi SHINGU , Anna TADA , Yui YOSHIYASU , Yasuhiro NIIKURA , Eriko AOYAMA , Naoaki HASHIMOTO , Satoshi SEO
CPC classification number: H10K85/6572 , H10K85/633 , H10K50/16 , H10K85/342 , H10K85/6574 , H10K85/636
Abstract: An organic semiconductor device that can achieve high resolution and favorable reliability is provided. The organic semiconductor device is one of a plurality of light-emitting devices formed over an insulating layer, which includes a first electrode, a second electrode, and an organic compound layer. The organic compound layer is positioned between the first electrode and the second electrode. The organic compound layer includes a layer containing a first compound. When differential scanning calorimetry is performed on the first compound in such a manner that a cooling step is performed from the state in which the first compound is melted in a first heating step and a second heating step is successively performed, an exothermic peak is not observed in the cooling step and an exothermic peak and a melting point peak are not observed in the second heating step.
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15.
公开(公告)号:US20220396574A1
公开(公告)日:2022-12-15
申请号:US17634635
申请日:2020-08-27
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor: Anna TADA , Nobuharu OHSAWA , Satoshi SEO
IPC: C07D471/04 , H01L51/00
Abstract: An organic compound that enables provision of a light-emitting device with high emission efficiency and high reliability is provided. An organic compound represented by General Formula (G1-1) below is provided. Note that in General Formula (G1-1) below, R1 to R10 each independently represent any one of hydrogen, an alkyl group having 3 to 10, inclusive, carbon atoms, and a substituted or unsubstituted cycloalkyl group having 3 to 10, inclusive, carbon atoms, and Ar1 and Ar2 each independently represent an aromatic hydrocarbon group having 6 to 13, inclusive, carbon atoms with a substituent. The Ar1 and the Ar2 each include, as the substituent, one or more of a cycloalkyl group having 3 to 12, inclusive, carbon atoms and a cycloalkyl group having a bridge structure and having 7 to 10, inclusive, carbon atoms.
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16.
公开(公告)号:US20220393123A1
公开(公告)日:2022-12-08
申请号:US17732790
申请日:2022-04-29
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Daisuke KUBOTA , Taisuke KAMADA , Yasuhiro NIIKURA , Sachiko KAWAKAMI , Anna TADA , Satoshi SEO
IPC: H01L51/42
Abstract: A light-receiving device that is highly convenient, useful, or reliable is provided. The light-receiving device includes a light-receiving layer between a pair of electrodes, the light-receiving layer includes an active layer and a hole-transport layer, the hole-transport layer contains a first organic compound, and the first organic compound is an aromatic monoamine compound or a heteroaromatic monoamine compound having at least one skeleton of biphenylamine, carbazolylamine, dibenzofuranylamine, dibenzothiophenylamine, fluorenylamine, and spirofluorenylamine. Alternatively, the light-receiving device includes a light-receiving layer between a pair of electrodes, the light-receiving layer includes an electron-transport layer and an active layer, the electron-transport layer contains a second organic compound, and the second organic compound includes a triazine ring.
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公开(公告)号:US20220376182A1
公开(公告)日:2022-11-24
申请号:US17727158
申请日:2022-04-22
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor: Daisuke KUBOTA , Taisuke KAMADA , Yasuhiro NIIKURA , Ryo HATSUMI , Akio YAMASHITA , Sachiko KAWAKAMI , Anna TADA , Satoshi SEO
IPC: H01L51/00 , H01L51/50 , C07D401/04 , C07D401/06 , C07F7/22 , C07F15/00 , C07D519/00 , C07D209/82 , C07D413/10 , C07D403/10 , C07D405/04 , C07D219/16 , C07D221/20 , C07D307/91 , C07D409/10 , C07D333/76
Abstract: To provide a novel photoelectric conversion device that is highly convenient, useful, or reliable. The photoelectric conversion device includes a first electrode, a second electrode, and a first unit. The first unit is located between the first electrode and the second electrode. The first unit contains a first electron-donating material and a first electron-accepting material. The first electron-donating material is a condensed aromatic compound, and the first electron-accepting material has a perylene skeleton and two or more alkyl groups. The alkyl groups each independently have 1 to 13 carbon atoms.
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公开(公告)号:US20220367816A1
公开(公告)日:2022-11-17
申请号:US17640843
申请日:2020-09-16
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor: Anna TADA , Sachiko KAWAKAMI , Takumu OKUYAMA , Tsunenori SUZUKI , Satoshi SEO
IPC: H01L51/00 , C07D307/77 , C09K11/06 , F21V31/00
Abstract: A novel organic compound is provided. An organic compound represented by General Formula (G1) below is provided. Note that in General Formula (G1), one of A and B represents a group represented by General Formula (g1) below, and the other of A and B, R1 to R8, and R11 to R14 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cyclic hydrocarbon group having 3 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a cyano group, a halogen, a haloalkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted aromatic hydrocarbon group having 6 to 60 carbon atoms. R9 and R10 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cyclic hydrocarbon group having 3 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a cyano group, a halogen, a haloalkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted phenyl group. Ar represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.
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19.
公开(公告)号:US20210013419A1
公开(公告)日:2021-01-14
申请号:US16923343
申请日:2020-07-08
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Kaori OGITA , Anna TADA , Sachiko KAWAKAMI , Nobuharu OHSAWA , Satoshi SEO
IPC: H01L51/00 , C07D513/04 , C09K11/06
Abstract: A novel organic compound having an emission spectrum peak at a wavelength longer than 850 nm and an absorption spectrum peak at a wavelength longer than 600 nm is provided. The organic compound is represented by General Formula (G1). In General Formula (G1), Ar1 to Ar4 each independently represent an aryl group having 6 to 13 carbon atoms in a ring. R1 to R8 each independently represent anyone of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, an aryl group having 6 to 13 carbon atoms in a ring, and a heteroaryl group having 3 to 13 carbon atoms in a ring. Q1 and Q2 each independently represent a group having a carbazole skeleton or a group having a triarylamine skeleton and having 18 to 30 carbon atoms in a ring. Furthermore, m and n each independently represent 0 or 1.
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公开(公告)号:US20210009518A1
公开(公告)日:2021-01-14
申请号:US16924717
申请日:2020-07-09
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor: Anna TADA , Sachiko KAWAKAMI , Takumu OKUYAMA , Tsunenori SUZUKI , Satoshi SEO
IPC: C07D209/82 , H01L33/32
Abstract: An organic compound with high heat resistance is provided. A light-emitting device with high emission efficiency and high reliability is provided. An organic compound represented by General Formula (G0) is provided. In General Formula (G0), any one of R1 to R5 represents General Formula (A), and each of the others of R1 to R5, R6 to R13, R21 to R29, R31 to R39, and R41 to R48 independently represents hydrogen, an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms. R21 and R22 may be bonded to each other to form a spiro ring.
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