Composition, film, laminated structure, light-emitting device and display

1. A luminescent composition comprising

a component (1) which is a perovskite compound comprising

a metal ion,

a monovalent cation positioned at each vertex of a hexahedron having the metal ion at the center in a perovskite type crystal structure, and

at least one anion selected from the group consisting of a halide ion and a thiocyanate ion, the ion being positioned at each vertex of an octahedron having the metal ion at the center in the perovskite type crystal structure;

a component (2) which is a halogen-containing compound; and

a component (10) which is a luminescent semiconductor material,

wherein a mass ratio of halide ions contained in the component (2) to the component (10) (mass of halide ions contained in the component (2)/mass of the component (10)) is 3.0 or less.

2. The composition according to claim 1 , further comprising a component (6) which is at least one compound selected from the group consisting of silazane, a modified product of silazane, a compound represented by formula (C1), a modified product of the compound represented by the formula (C1), a compound represented by formula (C2), a modified product of the compound represented by the formula (C2), a compound represented by formula (A5-51), a modified product of the compound represented by the formula (A5-51), a compound represented by formula (A5-52), a modified product of the compound represented by the formula (A5-52), sodium silicate, and a modified product of sodium silicate:

wherein: in the formula (C1), Y 5 represents a single bond, an oxygen atom, or a sulfur atom,

with the proviso that, when Y 5 is an oxygen atom, each of R 30 and R 31 independently represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, or an unsaturated hydrocarbon group having 2 to 20 carbon atoms, and

when Y 5 is a single bond or a sulfur atom, R 30 represents an alkyl group having 1 to 20 carbon atoms, a cycloalkyl having 3 to 30 carbon atoms, or an unsaturated hydrocarbon group having 2 to 20 carbon atoms, and R 31 represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, or an unsaturated hydrocarbon group having 2 to 20 carbon atoms;

in the formula (C2), each of R 30 , R 31 and R 32 independently represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, or an unsaturated hydrocarbon group having 2 to 20 carbon atoms;

in the formulae (C1) and (C2),

hydrogen atoms in the alkyl group, the cycloalkyl group and the unsaturated hydrocarbon group as R 30 , R 31 or R 32 are each independently substituted by or not substituted by a halogen atom or an amino group, and

a is an integer of 1 to 3, with the proviso that,

when a is 2 or 3, a plurality of Y 5 is the same or different,

when a is 2 or 3, a plurality of R 30 is the same or different,

when a is 2 or 3, a plurality of R 32 is the same or different,

when a is 1 or 2, a plurality of R 31 is the same or different, wherein A C is a divalent hydrocarbon group and Y 15 is an oxygen atom or a sulfur atom,

each of R 122 and R 123 is independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or a cycloalkyl group having 3 to 30 carbon atoms, R 124 is an alkyl group having 1 to 20 carbon atoms or a cycloalkyl group having 3 to 30 carbon atoms, and each of R 125 and R 126 is independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, or a cycloalkyl group having 3 to 30 carbon atoms, with the proviso that

hydrogen atoms in the alkyl group and the cycloalkyl group as R 122 to R 126 are each independently substituted by or not substituted by a halogen atom or an amino group.

3. The composition according to claim 1 , which further comprises:

a component (5) which is at least one compound or ion selected from the group consisting of an ammonium ion, an amine, primary to quaternary ammonium cations, an ammonium salt, a carboxylic acid, a carboxylate ion, a carboxylate salt, compounds respectively represented by formulae (X1) to (X6), and salts of the compounds respectively represented by formulae (X2) to (X4):

wherein:

in the formula (X1), each of R 18 to R 21 is independently an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, or an aryl group having 6 to 30 carbon atoms, which is or is not substituted, and M − is a counter anion;

in the formula (X2), A 1 is a single bond or an oxygen atom, and R 22 is an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, or an aryl group having 6 to 30 carbon atoms, which is or is not substituted;

in the formula (X3), each of A 2 and A 3 independently represents a single bond or an oxygen atom, and each of R 23 and R 24 independently represents an alkyl groups having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, or an aryl group having 6 to 30 carbon atoms, which is or is not substituted;

in the formula (X4), A 4 represents a single bond or an oxygen atom, and R 25 represents an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, or an aryl group having 6 to 30 carbon atoms, which is or is not substituted;

in the formula (X5), each of A 5 to A 7 independently represents a single bond or an oxygen atom, and each of R 26 to R 28 independently represents an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, an aryl group having 6 to 30 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, or an alkynyl group having 2 to 20 carbon atoms, which is or is not substituted;

in the formula (X6), each of A 8 to A 10 independently represents a single bond or an oxygen atom, and each of R 29 to R 31 independently represents an alkyl group having 1 to 20 carbon atom, a cycloalkyl group having 3 to 30 carbon atoms, an aryl group of 6 to 30 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, or an alkynyl group having 2 to 20 carbon atoms, which is or is not substituted,

with the proviso that hydrogen atoms in the groups represented by R 18 to R 31 re each independently substituted or not substituted by a halogen atom.

4. The composition according to claim 3 , wherein the component (5) is a component (5-1) which is at least one compound or ion selected from the group consisting of an ammonium ion, an amine, primary to quaternary ammonium cations, an ammonium salt, a carboxylic acid, a carboxylate ion, and a carboxylate salt.

5. The composition according to claim 1 , as a fabrication material.

6. The composition according to claim 1 , further comprising at least one component selected from the group consisting of a component (3), a component (4) and a component (4-1), wherein the component (3) is a solvent; the component (4) is a polymerizable compound; and the component (4-1) is a polymer.

7. The composition according to claim 1 , wherein the metal ion comprises one or more metal ions selected from the group consisting of lead and tin.

8. The composition according to claim 1 , wherein the monovalent cation is one or more selected from the group consisting of a cesium ion, an organic ammonium ion, and an amidinium ion.

9. The composition according to claim 1 , wherein the halogen-containing compound is

metal salt MX 2 , in which M is a divalent metal ion, and X is at least one ion selected from the group consisting of ions of F, Cl, Br and I, and

an inorganic acid HX.

10. The composition according to claim 9 , wherein said M is at least one selected from the group consisting of lead, tin, manganese, and zinc.

11. The composition according to claim 9 , wherein said metal salt MX 2 is selected from the group consisting of PbI 2 , PbBr 2 and PbCl 2 .

12. The composition according to claim 1 , wherein the luminescent semiconductor material is at least one selected from the group consisting of

(i) a semiconductor material containing Group II-VI compound semiconductor

(ii) a semiconductor material containing Group II-V compound semiconductor

(iii) a semiconductor material containing Group III-V compound semiconductor

(iv) a semiconductor material containing Group III-IV compound semiconductor

(v) a semiconductor material containing Group III-VI compound semiconductor

(vi) a semiconductor material containing Group IV-VI compound semiconductor, and

(vii) a semiconductor material containing transition metal-p-block compound semiconductor.

13. The composition according to claim 1 , wherein the mass ratio is 0.6 or less.

14. The composition according to claim 1 , wherein the mass ratio is 0.05 or less.

15. The composition according to claim 1 , wherein the mass ratio is 0.0130 or greater and 0.05 or less.

16. A laminated structure comprising the film according to claim 5 .

17. A light-emitting device comprising the laminated structure of claim 16 .

18. A display comprising the laminated structure of claim 16 .