Film, perovskite light emitting device comprising the same and method of manufacturing the perovskite light emitting device

A film comprising perovskite nanocrystals and a crosslinking compound represented by Formula 1 or 2 below:

• wherein, in Formula 1,
• L1 and L2 are each independently selected from a single bond and a C1-C30 alkylene group, each unsubstituted or substituted with at least one R10,
• m1 and m2 are each independently 0, 1, 2, 3, 4, 5, or 6,
• Ar1 to Ar4 are each independently selected from a single bond, a C5-C60 carbocyclic group, and a C1-C60 heterocyclic group, each unsubstituted or substituted with at least one R10,
• n1 and n2 are each independently 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10,
• the sum of n1 and n2 is greater than or equal to 2,
• Q1 is selected from a single bond, O, S, Si, C, C(R3), C(R3)(R4), N, N(R3)(R4), P, P(R3)(R4)(R5), P═O(R3), P═O(R3) (R4), SO2, SO2(R3), and a C1-C30 alkylene group, each unsubstituted or substituted with at least one R10,
• X1 is O,
• X2 is O, S, Se, N(R6), or C(R6)(R7),
• R1 to R7 and R10 are each independently selected from hydrogen, deuterium, —CF3, —CCl3—F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a C1-C30 alkyl group, a C2-C30 alkenyl group, a C2-C30 alkynyl group, a C1-C30 alkoxy group, a C1-C30 alkylthio group, a C5-C60 carbocyclic group, a C1-C60 heterocyclic group, and —Si(Q11)(Q12)(Q13), and
• Q11 to Q13 are each independently selected from hydrogen, deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a C1-C30 alkyl group, a C2-C30 alkenyl group, a C2-C30 alkynyl group, a C1-C30 alkoxy group, and a C1-C30 alkylthio group, and
• wherein, in Formula 2,
• L11 and L12 are each independently selected from a single bond and a C1-C30 alkylene group, each unsubstituted or substituted with at least one R10,
• m11 and m12 are each independently 1, 2, 3, 4, 5, or 6,
• Ar11 and Ar12 are each selected from a C5-C60 carbocyclic group, and a C1-C60 heterocyclic group, each unsubstituted or substituted with at least one R10,
• n11 and n12 are each independently 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10,
• the sum of n11 and n12 is greater than or equal to 2,
• Q2 to Q4 are each independently selected from a single bond, O, S, Si, C, C(R13), C(R13)(R14), N, N(R13), P, P(R13)(R14)(R15), P═O(R13), SO2, a C1-C30 alkylene group, each unsubstituted or substituted with at least one R10, and any combination thereof,
• X11 is O,
• X12 is selected from O, S, Se, N(R16), and C(R16)(R17),
• R11 to R17 and R10 are each independently selected from hydrogen, deuterium, —CF3, —CCl3, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a C1-C30 alkyl group, a C2-C30 alkenyl group, a C2-C30 alkynyl group, a C1-C30 alkoxy group, a C1-C30 alkylthio group, a C5-C60 carbocyclic group, a C1-C60 heterocyclic group, and —Si(Q11)(Q12)(Q13), and
• Q11 to Q13 are each independently selected from hydrogen, deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a C1-C30 alkyl group, a C2-C30 alkenyl group, a C2-C30 alkynyl group, a C1-C30 alkoxy group, and a C1-C30 alkylthio group.