| abstract |
Light-emitting composite particles, each of which has a perovskite-type crystal structure containing A, B and X as components [in the perovskite-type crystal structure, A represents a component located at each vertex in a hexahedron having B at the center thereof, and is a monovalent cation; B represents a component located at a center in a hexahedron having A at each vertex thereof or an octahedron having X at each vertex thereof, and is a metal ion; and X represents a component located at each vertex in an octahedron having B at the center thereof, and comprises at least one anion selected from the group consisting of a halide ion and a thiocyanate ion], and comprises a perovskite compound particle having light-emitting properties and a silicon compound layer formed on at least a portion of the surface of the perovskite compound particle, the light-emitting composite particles having an average particle diameter of 1 to 100 nm. |