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1. A composition for an organic optoelectronic device, comprising:
at least one first compound represented by Chemical Formula 1, at least one second compound of a compound represented by Chemical Formula 2, and a compound consisting of a combination of a moiety represented by Chemical Formula 3 and a moiety represented by Chemical Formula 4, and at least one third compound represented by Chemical Formula 5: wherein, in Chemical Formula 1, Z is independently N, C, or CRa, at least one of Z is N, R1 to R6 and Ra are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, or a combination thereof, R1 to R6 and Ra are independently present or adjacent groups are linked to each other to provide a ring, L1 and L2 are independently a single bond, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 heteroarylene group, or a combination thereof, n1 is 1, n2 and n3 are independently an integer of 0 or 1, and 1≦n2+n3≦2; wherein, in Chemical Formula 2, L3 to L6 and Y1 are independently a single bond, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 heteroarylene group, or a combination thereof, Ar1 is a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof, R7 to R10 are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C6 to C50 aryl group, a substituted or unsubstituted C2 to C50 heterocyclic group, or a combination thereof, and at least one of R7 to R10 and Ar1 includes a substituted or unsubstituted triphenylene group or a substituted or unsubstituted carbazole group, wherein, in Chemical Formulae 3 and 4, Y2 and Y3 are independently a single bond, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 heteroarylene group, or a combination thereof, Ar2 and Ar3 are independently a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof, R11 to R14 are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C6 to C50 aryl group, a substituted or unsubstituted C2 to C50 heterocyclic group, or a combination thereof, two adjacent *'s of Chemical Formula 3 are linked to two *'s of Chemical Formula 4 to provide a fused ring, and in Chemical Formula 3, *'s that do not provide a fused ring are independently CRc, and Rc is hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C12 aryl group, a substituted or unsubstituted C2 to C12 heterocyclic group, or a combination thereof; wherein, in Chemical Formula 5, Rd and Re are independently a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, or a combination thereof Rf to Ro are independently hydrogen, deuterium, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heterocyclic group, a substituted or unsubstituted C6 to C30 arylamine group, a substituted or unsubstituted C1 to C30 alkoxy group, a substituted or unsubstituted C3 to C40 silyl group, a substituted or unsubstituted C3 to C40 silyloxy group, a substituted or unsubstituted C1 to C30 alkylthiol group, a substituted or unsubstituted C6 to C30 arylthiol group, a halogen, a halogen-containing group, a cyano group, a hydroxyl group, an amino group, a nitro group, or a combination thereof, Rh, Ri, Rl, and Rm are independently present or are linked to each other to provide a ring, provided that when Rh and Ri are linked to each other to provide a ring, Rl and Rm are not linked to each other, and when Rl and Rm are linked to each other to provide a ring, Rh and Ri are not linked to each other, and La to Lc are independently a single bond, a substituted or unsubstituted C6 to C30 arylene group, a substituted or unsubstituted C2 to C30 heteroarylene group, or a combination thereof, wherein “substituted” of Chemical Formulae 1 to 5 refers to replacement of at least one hydrogen by deuterium, a halogen, a hydroxyl group, a C1 to C40 silyl group, a C1 to C30 alkyl group, a C3 to C30 cycloalkyl group, a C2 to C30 heterocycloalkyl group, a C6 to C30 aryl group, a C2 to C30 heterocyclic group, a C1 to C20 alkoxy group, a C1 to C10 trifluoroalkyl group, or a cyano group. |
