Light-Emitting Device, Light-Emitting Apparatus, Electronic Device, and Lighting Device

    公开(公告)号:US20210126213A1

    公开(公告)日:2021-04-29

    申请号:US16981793

    申请日:2019-03-13

    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.

    PHOTOELECTRIC CONVERSION DEVICE AND DISPLAY DEVICE

    公开(公告)号:US20240357929A1

    公开(公告)日:2024-10-24

    申请号:US18682365

    申请日:2022-08-03

    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.

    LIGHT-EMITTING DEVICE, DISPLAY DEVICE, ELECTRONIC DEVICE, ORGANIC COMPOUND, AND LIGHTING DEVICE

    公开(公告)号:US20220396574A1

    公开(公告)日:2022-12-15

    申请号:US17634635

    申请日:2020-08-27

    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.

    LIGHT-RECEIVING DEVICE, LIGHT-EMITTING AND LIGHT-RECEIVING APPARATUS, AND ELECTRONIC DEVICE

    公开(公告)号:US20220393123A1

    公开(公告)日:2022-12-08

    申请号:US17732790

    申请日:2022-04-29

    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.

    ORGANIC COMPOUND, OPTICAL DEVICE, LIGHT-EMITTING DEVICE, LIGHT-EMITTING APPARATUS, ELECTRONIC DEVICE, AND LIGHTING DEVICE

    公开(公告)号:US20220367816A1

    公开(公告)日:2022-11-17

    申请号:US17640843

    申请日:2020-09-16

    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.

    Organic Compound, Light-Emitting Device, Light-Emitting Apparatus, Electronic Device, and Lighting Device

    公开(公告)号:US20210013419A1

    公开(公告)日:2021-01-14

    申请号:US16923343

    申请日:2020-07-08

    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.

Patent Agency Ranking