Abstract: According to one embodiment, an organic photoelectric conversion element has a positive electrode, a first charge transport layer, an organic photoelectric conversion, a second charge transport layer and a negative electrode, in this order. The first charge transport layer contains a first charge transport material having a LUMO level equal to or greater than that of the organic photoelectric conversion layer. The second charge transport layer contains a second charge transport material having a HOMO level equal to or less than that of the organic photoelectric conversion layer. The first charge transport layer contains an electron trapping/scattering material that has a HOMO level which is +0.5 eV or more, or ?0.5 eV or less, than the HOMO level of the first charge transport material, and has a LUMO level which is between ?0.5 eV to +0.5 eV of the LUMO level of the first electron transport material.

Abstract: According to one embodiment, there is provided a compound represented by Formula (1): where Cu+ represents a copper ion, each of R1 and R2 represents a linear, branched or cyclic alkyl group or an aromatic cyclic group which may have a substituent, each of R3, R4, R5 and R6 represents a halogen atom, a cyano group, a nitro group, a linear, branched or cyclic alkyl group or H, and X? represents a counter ion where X is selected from the group consisting of F, Cl, Br, I, BF4, PF6, CH3CO2, CF3CO2, CF3SO3 and ClO4.

Abstract: A light-emitting compound includes two or more carbazole skeletons each having two or more fluorine atoms at 2-, 4-, 5- and 7-positions, the carbazole skeleton represented by the formula (1): where two or more of R2, R4, R5 and R7 are F and a remainder is H.

Abstract: According to one embodiment, an organic light-emitting diode includes an anode and a cathode arranged apart from each other, an emission layer, arranged between the anode and cathode, containing a host material of polyvinyl(2,7-difluorocarbazole), a blue-emitting phosphorescent material, and an electron transport material, and a hole transport layer of polyvinylcarbazole arranged adjacent to the emission layer on an anode side.

Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode arranged apart from each other, and an emissive layer interposed between the anode and the cathode and including a host material and an emitting dopant. The emitting dopant includes a copper complex represented by the formula (1): where Cu+ represents a copper ion, the ligand A represents a pyridine derivative having nitrogen as a coordinate element and may have a substituent, PR1R2R3 is a phosphine compound coordinating with Cu+, where R1, R2 and R3 may be the same or different, and represent a linear, branched or cyclic alkyl group having 6 or less carbon atoms or an aromatic cyclic group which may have a substituent, and X? represents a counter ion (counterion) where X represents F, Cl, Br, I, BF4, PF6, CH3CO2, CF3CO2, CF3SO3 or ClO4.

Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode which are arranged apart from each other, and an emissive layer interposed between the anode and the cathode and including a host material and an emitting dopant. The host material includes a polymer containing dibenzothiophene backbones represented by the following formula (1) as repeating units: wherein n is an integer of from 20 to 10,000.

Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode which are arranged apart from each other, a red and green emissive layer on the anode side and a blue emissive layer on the cathode side, which are arranged to be separated from each other between the anode and the cathode, and a spacer layer which is inserted between the red and green emissive layer and the blue emissive layer, and consists of a hole transport material which prevents energy transfer from the blue emissive layer to the red and green emissive layer. The red and green emissive layer contains a host material having hole transportability, a red phosphorescent emitting dopant, and a green phosphorescent emitting dopant, and the blue emissive layer contains a host material having electron transportability and a blue fluorescent emitting dopant.

Abstract: According to one embodiment, there is provided a compound represented by Formula (1): where Cu represents a copper, PR1R2R3 is a phosphine compound coordinating with Cu, where R1, R2, R3, R4 and R5 may be the same or different, and represent a linear, branched or cyclic alkyl group having 1-6 carbon atoms or an aromatic cyclic group which may have a substituent, R6, R7, R8 and R9 each independently represents a halogen atom, cyano group, nitro group, linear, branched or cyclic alkyl group having 1-6 carbon atoms or H, and X is F, Cl, Br or I.

Abstract: An organic light-emitting diode includes an anode and a cathode separately arranged from each other, and an emission layer between the anode and the cathode, the emission layer including a single host material and a light-emitting material, the emission layer including, when the host material has a hole transport property, a doped region on a cathode side to which an electron transport material is doped and an undoped region on an anode side to which an electron transport material is not doped, or the emission layer including, when the host material has an electron transport property, a doped region on an anode side to which a hole transport material is doped and an undoped region on a cathode side to which a hole transport material is not doped.

Abstract: A method of manufacturing a light emitting device. The method includes: mounting a light emitting chip on a substrate; forming a transparent resin portion and a phosphor layer by using a liquid droplet discharging apparatus, the transparent resin portion being formed in a shape of a dome and covering the light emitting chip to fill an exterior thereof on the substrate, a phosphor layer containing phosphor and being formed on an exterior of the transparent resin portion close to at least a top side thereof; and forming a reflecting layer at a position exterior of the transparent resin portion and the phosphor layer close to the substrate.

Abstract: The organic electroluminescent device according to the embodiment has: anode and cathode electrodes placed apart from each other, a red and green light-emitting layer and a blue light-emitting layer, and a spacer layer having a thickness of 3 nm to 20 nm inclusive. The light-emitting layers are placed apart from each other and positioned between the electrodes. The spacer layer is positioned between the light-emitting layers, and includes a carrier transport material containing molecules capable of being oriented in the in-plane and vertical direction with an orientational order parameter of ?0.5 to ?0.2 inclusive.

Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode which are arranged apart from each other, a red and green emissive layer on the anode side and a blue emissive layer on the cathode side, which are arranged to be separated from each other between the anode and the cathode, and a spacer layer which is inserted between the red and green emissive layer and the blue emissive layer, and consists of a hole transport material which prevents energy transfer from the blue emissive layer to the red and green emissive layer. The red and green emissive layer contains a host material having hole transportability, a red phosphorescent emitting dopant, and a green phosphorescent emitting dopant, and the blue emissive layer contains a host material having electron transportability and a blue fluorescent emitting dopant.

Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode which are arranged apart from each other, an emissive layer arranged between the anode and the cathode including a blue emissive layer located at the anode side and a green and red emissive layer located at the cathode side, the blue emissive layer containing a host material and a blue fluorescent dopant, and the green and red emissive layer containing a host material and a green phosphorescent dopant and/or a red phosphorescent dopant.

Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode which are arranged apart from each other, and an emissive layer interposed between the anode and the cathode and including a host material and an emitting dopant. The host material includes a polymer containing dibenzothiophene backbones represented by the following formula (1) as repeating units: wherein n is an integer of from 20 to 10,000.

Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode which are arranged apart from each other, and an emissive layer interposed between the anode and the cathode and including a host material and an emitting dopant. The emitting dopant includes a compound represented by the formula (1): where R1 and R2 each independently represents a halogen atom, a cyano group, a nitro group, a linear, branched or cyclic alkyl group, or H, and R3, R4 and R5 each independently represents a linear, branched or cyclic alkyl group, or an aromatic cyclic group optionally having substituent(s), X? represents a counter ion.

Abstract: According to one embodiment, there is provided a compound represented by Formula (1): where Cu+ represents a copper ion, each of R1 and R2 represents a linear, branched or cyclic alkyl group or an aromatic cyclic group which may have a substituent, each of R3, R4, R5 and R6 represents a halogen atom, a cyano group, a nitro group, a linear, branched or cyclic alkyl group or H, and X? represents a counter ion where X is selected from the group consisting of F, Cl, Br, I, BF4, PF6, CH3CO2, CF3CO2, CF3SO3 and ClO4.

Abstract: According to one embodiment, there is provided a compound represented by Formula (1): where Cu represents a copper, PR1R2R3 is a phosphine compound coordinating with Cu, where R1, R2, R3, R4 and R5 may be the same or different, and represent a linear, branched or cyclic alkyl group having 1-6 carbon atoms or an aromatic cyclic group which may have a substituent, R6, R7, R8 and R9 each independently represents a halogen atom, cyano group, nitro group, linear, branched or cyclic alkyl group having 1-6 carbon atoms or H, and X is F, Cl, Br or I.

Abstract: According to one embodiment, there is provided a compound represented by Formula (1): where Cu+ represents a copper ion, PR1R2R3 is a phosphine compound coordinating with Cu+, where R1, R2 and R3 may be the same or different, and represent a linear, branched or cyclic alkyl group having 1-6 carbon atoms or an aromatic cyclic group which may have a substituent, R4 is an electron-donating substituent and X? represents a counter ion where X is at least one selected from the group consisting of F, Cl, Br, I, BF4, PF6, CH3CO2, CF3CO2, CF3SO3 and ClO4.

Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode arranged apart from each other, and an emissive layer interposed between the anode and the cathode and including a host material and an emitting dopant. The emitting dopant includes a copper complex represented by the formula (1): where Cu+ represents a copper ion, the ligand A represents a pyridine derivative having nitrogen as a coordinate element and may have a substituent, PR1R2R3 is a phosphine compound coordinating with Cu+, where R1, R2 and R3 may be the same or different, and represent a linear, branched or cyclic alkyl group having 6 or less carbon atoms or an aromatic cyclic group which may have a substituent, and X? represents a counter ion (counterion) where X represents F, Cl, Br, I, BF4, PF6, CH3CO2, CF3CO2, CF3SO3 or ClO4.

Abstract: According to one embodiment, in an organic electroluminescence device, a first substrate has a first refractive index n1. A second substrate is joined to an upper surface of the first substrate and has a second refractive index n2 higher than the first refractive index n1. Multiple wedge-shaped metal lines are buried in the second substrate in such a manner that one side of the wedge-shaped metal line is flush with an upper surface of the second substrate. A transparent electrode is formed on the upper surface of the second substrate and the multiple metal lines. An insulating layer is formed on a portion of the transparent electrode opposed to the multiple metal lines. An organic light emitting layer is formed on the transparent electrode on which the insulating layer is formed. A metal electrode is formed on the organic light emitting layer.