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US 12,319,587 B2Granted
Compound, composition, film, layered structure, light-emitting device, and display
AssigneeSumitomo Chemical Company, Limited
InventorsShota Naito, Mizuho Sugiuchi
Life of this patent
Estimating the term…
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 Å or more and 1.4 Å or less, and an ionic radius of X of 0.5 Å or more and 2.5 Å or less.
Claims17
A composition comprising
- (i) a compound having a perovskite type crystal structure comprising
- a metal ion,
- a monovalent cation located at each apex of a hexahedron centered on the metal ion in the perovskite type crystal structure, and
- a halide ion located at each apex of an octahedron centered on the metal ion in the perovskite type crystal structure,
- wherein 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 the metal ion is 0.7 Å or more and 1.4 Å or less, and
- an ionic radius of the halide ion is 0.5 Å or more and 2.5 Å or less;
- and
- (ii) at least one compound selected from the group consisting of the following (2-1), a modified product of the following (2-1), the following (2-2), and a modified product of the following (2-2):
- (2-1) silazane, and
- (2-2) silicon compound having at least one group selected from the group consisting of an amino group, an alkoxy group, and an alkylthio group.
8 more elements
A composition comprising
- (i) a compound having perovskite type crystal structure comprising
- a metal ion,
- a monovalent cation located at each apex of a hexahedron centered on the metal ion in the perovskite type crystal structure, and
- a halide ion located at each apex of an octahedron centered on the metal ion in the perovskite type crystal structure,
- wherein 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 the metal ion is 0.7 Å or more and 1.4 Å or less;
- and
- (ii) at least one compound selected from the group consisting of the following (2-1), a modified product of the following (2-1), the following (2-2), and a modified product of the following (2-2):
- (2-1) silazane, and
- (2-2) silicon compound having at least one group selected from the group consisting of an amino group, an alkoxy group, and an alkylthio group.
7 more elements
Dependencies are inferred from the claim text.