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

Abstract: A nanoparticle including at least one amphiphilic molecule and a polymer compound having a constitutional unit represented by Formula (1): wherein, Ar1 and Ar2 represent a trivalent aromatic hydrocarbon ring group or a trivalent aromatic heterocyclic group; X and Y represent —O—, —S—, —C(?O)—, —S(?O)—, —SO2—, —CR2—, —SiR2—, —NR—, —BR—, —PR—, or —P(?O)(R)—; and R represents an alkyl group, aryl group, or the like; and n represents an integer of 1 or more.

Abstract: To provide a composition having high thermal durability comprising a perovskite compound. A composition comprising a component (1), a component (2), and a component (3) described below: (Composition (1): A indicates a component positioned at each vertex of a hexahedron having B at the center in a perovskite type crystal structure and is a monovalent cation. B indicates a component positioned at the centers of the hexahedron where A is disposed at each vertex and the octahedron where X is disposed at each vertex in the perovskite type crystal structure and is a metal ion. X indicates a component positioned at each vertex of an octahedron having B at the center in the perovskite type crystal structure and is at least one ion selected from the group consisting of a halide ion and a thiocyanate ion.

Abstract: Provided is a composition having high thermal durability containing a perovskite compound. (1) Component: perovskite compound having A, B, and X. (A indicates a component positioned at each vertex of a hexahedron having B at the center in a perovskite type crystal structure and is a monovalent cation. B indicates a component positioned at the centers of the hexahedron where A is disposed at each vertex and the octahedron where X is disposed at each vertex in the perovskite type crystal structure and is a metal ion. X indicates a component positioned at each vertex of an octahedron having B at the center in the perovskite type crystal structure and is at least one ion selected from the group consisting of a halide ion and a thiocyanate ion.) (2) Component: Silazane or a modified product thereof. (3) Component: a compound represented by the formula (X1) or the like.

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