Abstract: A phosphor including a crystal phase of an aluminate compound containing a metal element M constituting a luminescent center ion and aluminum, in which the crystal phase contains crystallites, and an average size of the crystallites is 2 to 100 ?m.

Abstract: A method for producing a phosphor having a core-shell structure that includes: a core part formed of a crystal phase of an inorganic compound containing a metal element M constituting a luminescent center ion and aluminum; and a shell part containing at least one element selected from the group consisting of boron and silicon and formed on at least a portion of a surface of the core part, the method including: mixing a raw material of the crystal phase and a raw material of the shell part; and heating the obtained mixture at a temperature at which the raw material of the shell part is liquefied, but a host crystal of a phosphor to be obtained is maintained, in which the raw material of the crystal phase contains a raw material compound having D50 in a particle diameter distribution of 0.2 to 90 ?m and containing aluminum.

Abstract: Provided is a multilayer vessel excellent in gas barrier performance and transparency and its application. The multilayer vessel contains a layer (X) that contains at least one type of polyolefin resin as the major ingredient; and a layer (Y) that contains a polyamide resin (A) as the major ingredient, the polyamide resin (A) being composed of a structural unit derived from diamine, and a structural unit derived from dicarboxylic acid, 70 mol % or more of the structural unit derived from diamine being derived from metaxylylenediamine, meanwhile 30 to 60 mol % of the structural unit derived from dicarboxylic acid being derived from straight chain aliphatic ?,?-dicarboxylic acid having 4 to 20 carbon atoms, and 70 to 40 mol % being derived from isophthalic acid.

Abstract: The present disclosure relates to a light-emitting composition containing a perovskite compound and inorganic fine particles.

Abstract: A phosphor having an elemental composition represented by the following composition formula: SryMg(1?x)MxAlzO(1+y+1.5z) (1), in the formula (1), M represents at least one metal element selected from the group consisting of manganese, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, thulium, and ytterbium, x represents a value of 0.01?x?0.8, y represents a value of 1?y?2, and z represents a value of 10?z?22, wherein a particle diameter D10 at which a cumulative frequency is 10% and a particle diameter D90 at which a cumulative frequency is 90% in a volume-based cumulative particle diameter distribution curve obtained by a laser diffraction scattering method satisfy the following conditions (I) and (II): (I) D90-D10 is less than 67.4 ?m; and (II) D10 is a value of greater than 1.3 ?m and 100 ?m or less.

Abstract: A phosphor having an elemental composition represented by the following composition formula: SryMg(1-x) MxAlzO(1+y+1.5z) (1), in the formula (1), M represents at least one metal element selected from the group consisting of manganese, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, thulium, and ytterbium, x represents a value of 0.01?x?0.8, y represents a value of 1?y?2, and z represents a value of 10?z?22, wherein the phosphor has a specific surface area of less than 2.7 m2/g.

Abstract: A phosphor having an elemental composition represented by the following composition formula: SryMg(1?x)MxAlzO(1+y+1.5z) (1), in the formula (1), M represents at least one metal element selected from the group consisting of manganese, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, thulium, and ytterbium, x represents a value of 0.01?x?0.8, y represents a value of 1?y?2, and z represents a value of 10?z?22, wherein a full width at half maximum of an XRD peak at 2?=31.7°±0.5 is less than 0.207.

Abstract: A fluorescent material has a core-shell structure. The core contains a crystal phase of an inorganic compound having Formula: MxMgaAlyOzNw (A); M represents a metal; × satisfies 0.001 ? × ? 0.3; a satisfies 0 ? a ? 1.0 - ×; y satisfies 1.2 ? y ? 11.3; z satisfies 2.8 ? z ? 18; and w satisfies 0 ? w ? 1.0. The shell is formed on at least a part of a surface of the core and contains boron and/or silicon. The core has a sodium content of 1700 ppm by mass or less and a specific surface area of 0.01 to 4.30 m2/g. A ratio Y/X of a peak area value Y of boron or silicon to a peak area value X of metal M present in the shell satisfies 0 < Y/X ? 0.095 in an EDX measurement of a cross section of the fluorescent material.

Abstract: The present disclosure relates to a laminated structure comprising a film comprising a light-emitting perovskite compound, a first substrate, and a second substrate, in which the film is positioned between the first substrate and the second substrate.

Abstract: A fluorescent material has a core-shell structure. The core contains a crystal phase of an inorganic compound having Formula: MxMgaAlyOzNw (A); M represents a metal; x satisfies 0.001?x?0.3; a satisfies 0?a?1.0?x; y satisfies 1.2?y?11.3; z satisfies 2.8?z?18; and w satisfies 0?w?1.0. The shell is formed on at least a part of a surface of the core and contains boron and/or silicon. The core has a tetrahedral site occupancy of M1 of 0.032 or more and a specific surface area of 0.01 to 4.1 m2/g. A ratio Y/X of a peak area value Y of boron or silicon to a peak area value X of M present in the shell satisfies 0<Y/X?0.095 when EDX measurement of a cross section of the fluorescent material is performed.

Abstract: The present disclosure relates to a composition including a light-emitting perovskite compound (1) which includes constituent components A, B, and X, and a silazane or modified product thereof (2).

Abstract: The present invention relates to an ink composition including a semiconductor nanoparticle (1) which contains a perovskite compound, and a curable resin composition (2), in which the ink composition may further include a solvent (3), a value of Z in Formula (a) of Z=(O2+O3+N2+N3)/(C2+C3) is 0.37 or less, O2, N2, and C2 represent the number of O atoms, the number of N atoms, and the number of C atoms, respectively, in the curable resin composition (2), and O3, N3, and C3 represent the number of O atoms, the number of N atoms, and the number of C atoms, respectively in the solvent (3).

Abstract: The present disclosure relates to a laminated structure comprising a film comprising a light-emitting perovskite compound, a first substrate, and a second substrate, in which the film is positioned between the first substrate and the second substrate.

Abstract: A compound has a perovskite type crystal structure containing A which is a monovalent cation, B which is a metal ion, and X which is a halide ion as components. The perovskite type crystal structure has a unit cell volume of 0.2000 nm3 or more and 0.2150 nm3 or less, an ionic radius of B of 0.7 ? or more and 1.4 ? or less, and an ionic radius of X of 0.5 ? or more and 2.5 ? or less.

Abstract: A light-emitting composition including: semiconductor fine particles as component (1); and a compound represented by Formula (X) or a modified product thereof as component (2).

Abstract: The present invention relates to a mixture of a compound (1) and a compound (2). The compound (1) is a light-emitting perovskite compound which includes components A, B, and X, and the compound (2) is a light-emitting indium compound or light-emitting cadmium compound. The component A indicates a component positioned at each vertex of a hexahedron having the component B at the center in a perovskite type crystal structure and is a monovalent cation, the component X indicates a component positioned at each vertex of an octahedron having the component B at the center in the perovskite type crystal structure and is one or more kinds of anions selected from the group consisting of a halide ion and a thiocyanate ion, and the component B indicates a component positioned at the centers of the hexahedron where the component A is disposed at each vertex and the octahedron where the component X is disposed at each vertex in the perovskite type crystal structure and is a metal ion.

Abstract: Disclosed is a light-emitting composition with a perovskite compound and a halogen-containing compound.

Abstract: Disclosed is a particle with a component (1) and a component (2), in which the component (2) covers at least a portion of the surface of the component (1), and the component (2) includes an organic silicon compound layer including a siloxane bond and an inorganic silicon compound layer including a siloxane bond.

Abstract: Disclosed is a light-emitting composition with a perovskite compound and a compound represented by ClNmHn, an ion of the compound represented by ClNmHn, or a salt of the ion of the compound represented by ClNmHn, wherein each of l, m and n independently represents an integer.

Abstract: Particles contain component (1) and component (2), in which component (2) is present on a surface of component (1), and an area ratio ((S1)/(S2)) is 0.01 or more and 0.5 or less when S1 represents the area of component (1) occupied on surfaces of the particles, and S2 represents the area of component (2) occupied on the surfaces of the particles.