Particles, Composition, Film, Layered Structure, Light-Emitting Device, and Display

Particles comprising component (1) and component (2), wherein

• component (2) is present on a surface of component (1), and
• an area ratio ((S1)/(S2)) is 0.01 or more and 0.5 or less when Si represents an area of component (1) occupied on surfaces of the particles, and S2 represents an area of component (2) occupied on the surfaces of the particles,
• component (1):
• light-emitting semiconductor particles,
• component (2):
• one or more compounds selected from the group consisting of a modified product of a silazane, a modified product of a compound represented by the following formula (C1), a modified product of a compound represented by the following formula (C2), a modified product of a compound represented by the following formula (A5-51), a modified product of a compound represented by the following formula (A5-52), and a modified product of sodium silicate,
• wherein, in formula (C1), Y5 represents a single bond, an oxygen atom, or a sulfur atom,
• when Y5 is an oxygen atom, R30 and R31 each independently represent 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,
• when Y5 is a single bond or a sulfur atom, R30 represents 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 R31 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 formula (C2), R30, R31, and R32 each independently represent 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 formulas (C1) and (C2),
• hydrogen atoms contained in the alkyl group, the cycloalkyl group, and the unsaturated hydrocarbon group represented by R30, R31, and R32 may be each independently replaced with a halogen atom or an amino group,
• a is an integer of 1 to 3,
• when a is 2 or 3, the plurality of Y5s may be the same as or different from each other,
• when a is 2 or 3, the plurality of R30s may be the same as or different from each other,
• when a is 2 or 3, the plurality of R32s may be the same as or different from each other, and
• when a is 1 or 2, the plurality of R31s may be the same as or different from each other,
• wherein, in formulas (A5-51) and (A5-52), Ac is a divalent hydrocarbon group, and Y15 is an oxygen atom or sulfur atom,
• R122 and R123 each independently represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or a cycloalkyl group having 3 to 30 carbon atoms, R124 represents an alkyl group having 1 to 20 carbon atoms or a cycloalkyl group having 3 to 30 carbon atoms, and R125 and R126 each independently represent 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, and
• hydrogen atoms contained in the alkyl groups and the cycloalkyl groups represented by R122 to R126 may be each independently replaced with a halogen atom or an amino group.