Composition, film, multilayer structure, light emitting device and display

A light-emitting composition comprising:

• component (1):
• semiconductor fine particles;
• component (2):
• a compound represented by Formula (X) or a modified product thereof;
• and
• component (5):
• at least one component selected from the group consisting of amines having an alkenyl group having 8 to 20 carbon atoms, carboxylic acids having an alkenyl group having 8 to 20 carbon atoms, and salts or ions thereof,
• wherein:
• Y is a direct bond, an oxygen atom, or a sulfur atom, with the proviso that,
• when Y is an oxygen atom, R16 is an alkyl group having 3 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 R17 is an alkyl group, a cycloalkyl group, an unsaturated hydrocarbon group or a hydrogen atom, with the proviso that R17 has a smaller number of carbon atoms than R16,
• when Y is a direct bond or a sulfur atom, R16 is 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, R17 is an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 30 carbon atoms, an unsaturated hydrocarbon group having 2 to 20 carbon atoms, or a hydrogen atom,
• hydrogen atoms in the alkyl group, the cycloalkyl group and the unsaturated hydrocarbon group as R16 or R17 are each independently substituted by or not substituted by a halogen atom, and
• hydrogen atoms in the cycloalkyl group as R16 or R17 are each independently substituted by or not substituted by an alkyl group, and
• a is an integer of 1 to 3, with the proviso that,
• when a is 2 or 3, a plurality of Y may be the same or different,
• when a is 2 or 3, a plurality of R16 may be the same or different, and
• when a is 1 or 2, a plurality of R17 may be the same or different,
• wherein the amines having an alkenyl group having 8 to 20 carbon atoms of component (5) have a salt or ion form represented by an ammonium cation of formula (A1):
• wherein R1 to R3 represent a hydrogen atom and R4 is an alkenyl group having 8 to 20 carbon atoms;
• and
• wherein the carboxylic acids having an alkenyl group having 8 to 20 carbon atoms of component (5) have a salt or ion form represented by a carboxylate anion of formula (A2):
• R5—CO2− (A2)
• wherein R5 represents an alkenyl group having 8 to 20 carbon atoms.