Luminescent material for organic optoelectric device and organic optoelectric device and display device

1. A luminescent material for an organic optoelectric device, the luminescent material being represented by the Chemical Formula 1:

wherein, in Chemical Formula 1,

each Z is independently N or CR a ,

at least two Zs are N, at least two Zs in the Z-containing ring bonded to L or the triphenylene group being N,

R 1 to R 10 and R a are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C12 aryl group, or a combination thereof,

L is a substituted or unsubstituted phenylene group, a substituted or unsubstituted biphenylene group, or a substituted or unsubstituted terphenylene group,

n1 to n3 are each independently 0 or 1, and

n1+n2+n3≧1.

2. The luminescent material for an organic optoelectric device of claim 1 , wherein the luminescent material is represented by Chemical Formula 1-I or Chemical Formula 1-II:

wherein, in Chemical Formula 1-I and 1-II,

each Z is independently N or CR a ,

at least two Zs are N, at least two Zs in the Z-containing ring bonded to L or the triphenylene group being N,

R 1 to R 10 and R a are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C12 aryl group, or a combination thereof,

L is a substituted or unsubstituted phenylene group, a substituted or unsubstituted biphenylene group, or a substituted or unsubstituted terphenylene group,

n1 to n3 are each independently 0 or 1, and

n1+n2+n3≧1.

3. The luminescent material for an organic optoelectric device of claim 1 , wherein L is a substituted or unsubstituted phenylene group having a kink structure, a substituted or unsubstituted biphenylene group having a kink structure, or a substituted or unsubstituted terphenylene group having a kink structure.

4. The luminescent material for an organic optoelectric device of claim 3 , wherein L is one of the following substituted or unsubstituted groups

wherein:

R 11 to R 38 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C3 to C30 heterocycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, a substituted or unsubstituted amine group, a substituted or unsubstituted C6 to C30 arylamine group, a substituted or unsubstituted C6 to C30 heteroarylamine group, a substituted or unsubstituted C1 to C30 alkoxy group, a halogen, a halogen-containing group, a cyano group, a hydroxyl group, an amino group, a nitro group, a carboxyl group, a ferrocenyl group, or a combination thereof, and

* represents a binding site to a neighboring atom.

5. The luminescent material for an organic optoelectric device of claim 1 , wherein the luminescent material includes at least two kink structures.

6. The luminescent material for an organic optoelectric device of claim 1 , wherein the luminescent material is represented by Chemical Formula 1a or 1b:

wherein, in Chemical Formula 1a and 1 b,

each Z is independently N or CR a ,

at least two Zs are N, at least two Zs in the Z-containing ring bonded to L or the triphenylene group being N, and

R 1 to R 10 and R a are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C12 aryl group, or a combination thereof.

7. The luminescent material for an organic optoelectric device of claim 1 , wherein the luminescent material is represented by one of Chemical Formulae 1c to 1t:

wherein, in Chemical Formulae 1c to 1 t,

each Z is independently N or CR a ,

at least two Zs are N, at least two Zs in the Z-containing ring bonded to L or the triphenylene group being N,

R 1 to R 10 and R a are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C12 aryl group, or a combination thereof,

R 11 to R 14 , R 17 to R 20 , R 23 to R 26 and R 36 to R 38 are each independently hydrogen, deuterium, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C3 to C30 cycloalkyl group, a substituted or unsubstituted C3 to C30 heterocycloalkyl group, a substituted or unsubstituted C6 to C30 aryl group, a substituted or unsubstituted C2 to C30 heteroaryl group, a substituted or unsubstituted amine group, a substituted or unsubstituted C6 to C30 arylamine group, a substituted or unsubstituted C6 to C30 heteroarylamine group, a substituted or unsubstituted C1 to C30 alkoxy group, a halogen, a halogen-containing group, a cyano group, a hydroxyl group, an amino group, a nitro group, a carboxyl group, a ferrocenyl group, or a combination thereof.

8. The luminescent material for an organic optoelectric device of claim 1 , wherein the luminescent material includes one of the following compounds:

9. The luminescent material for an organic optoelectric device of claim 1 , wherein the luminescent material has a LUMO energy of −2.0 to −2.5 eV.

10. An organic optoelectric device, comprising:

an anode and a cathode facing each other, and

an emission layer positioned between the anode and the cathode, the emission layer including the luminescent material according to claim 1 .

11. The organic optoelectric device of claim 10 , wherein:

the luminescent material is a host of the emission layer, and

the emission layer further includes a dopant.

12. The organic optoelectric device of claim 10 , further comprising at least one auxiliary layer selected from a hole injection layer, a hole transport layer, an electron blocking layer, an electron transport layer, an electron injection layer, and a hole blocking layer.

13. A display device comprising the organic optoelectric device according to claim 10 .