Organic optoelectronic diode and display device

1. An organic optoelectronic device, comprising:

an anode and a cathode facing each other; and

an organic layer disposed between the anode and the cathode,

wherein the organic layer includes at least one of a hole injection layer, a hole transport layer, a light emitting layer, and an electron transport layer,

wherein the light emitting layer includes a first host represented by Chemical Formula 1-3a-II, Chemical Formula 1-3a-III, Chemical Formula 1-3a-IV, or Chemical Formula 1-3a-V, a second host represented by a combination of Chemical Formula 2 and Chemical Formula 3, and a phosphorescent dopant represented by Chemical Formula 4,

wherein, in Chemical Formula 1-3a-II, Chemical Formula 1-3a-III, Chemical Formula 1-3a-IV, and Chemical Formula 1-3a-V,

X 1 is O or S,

Z 1 to Z 3 are independently N or CR a ,

at least two of Z 1 to Z 3 are N,

L 1 is a single bond, or a substituted or unsubstituted C6 to C20 arylene group,

R 1 is a substituted or unsubstituted C6 to C20 aryl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group, and

R a , R 2 to R 4 , and R 10 to R 13 are independently hydrogen, deuterium, a cyano group, a substituted or unsubstituted C1 to C10 alkyl group, or a substituted or unsubstituted C6 to C20 aryl group;

wherein, in Chemical Formula 2 and Chemical Formula 3,

Y 1 and Y 2 are independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group,

adjacent two *'s of Chemical Formula 2 are linked with Chemical Formula 3,

* of Chemical Formula 2 that are not linked with Chemical Formula 3 are independently C-L a -R b ,

L a , L 3 , and L 4 are independently a single bond, or a substituted or unsubstituted C6 to C20 arylene group,

R b and R 5 to R 8 are independently hydrogen, deuterium, a cyano group, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C2 to C30 heterocyclic group;

wherein, in Chemical Formula 4,

Z 4 to Z 11 are independently N, C or CR c ,

the ring C is bound to the ring B through a C—C bond,

iridium is bound to the ring B through a Ir—C bond,

X 2 is O or S,

R c and R 14 to R 19 are independently hydrogen, deuterium, a halogen, germanium group, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C1 to C10 alkylsilyl group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C2 to C30 heterocyclic group, and

n is an integer ranging from 1 to 3.

2. The organic optoelectronic device of claim 1 , wherein Z 1 to Z 3 of Chemical Formula 1-3a-II, Chemical Formula 1-3a-III, Chemical Formula 1-3a-IV, and Chemical Formula 1-3a-V are N.

3. The organic optoelectronic device of claim 1 , wherein R 1 of Chemical Formula 1-3a-II, Chemical Formula 1-3a-III, Chemical Formula 1-3a-IV, and Chemical Formula 1-3a-V is selected from substituents of Group I:

wherein, in Group I, * is a linking point.

4. The organic optoelectronic device of claim 1 , wherein the second host is represented by one of Chemical Formula 2A, Chemical Formula 2B, Chemical Formula 2C, and Chemical Formula 2D:

wherein, in Chemical Formula 2A to Chemical Formula 2D,

Y 1 and Y 2 are independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group,

L a1 to L a4 , L 3 , and L 4 are independently a single bond, or a substituted or unsubstituted C6 to C20 arylene group, and

R b1 to R b4 and R 5 to R 8 are independently hydrogen, deuterium, a cyano group, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C2 to C30 heterocyclic group.

5. The organic optoelectronic device of claim 4 , wherein R b1 to R b4 and R 5 to R 8 are independently hydrogen, deuterium, a cyano group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted pyridinyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group.

6. The organic optoelectronic device of claim 1 , wherein Chemical Formula 4 is represented by one of Chemical Formula 4-1 to Chemical Formula 4-6:

wherein, in Chemical Formula 4-1 to Chemical Formula 4-6,

X 2 is O or S,

R c1 , R c2 , R c3 and R 14 to R 19 are independently hydrogen, deuterium, a halogen, germanium group, a cyano group, a substituted or unsubstituted silyl group, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C1 to C10 alkylsilyl group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C2 to C30 heterocyclic group, and

n is an integer ranging from 1 to 3.

7. The organic optoelectronic device of claim 1 , wherein:

the second host is represented by Chemical Formula 2B:

wherein, in Chemical Formula 2B,

L a1 , L a4 , L 3 , and L 4 are independently a single bond, or a substituted or unsubstituted C6 to C20 arylene group,

R b1 , R b4 , and R 5 to R 8 are independently hydrogen, deuterium, a cyano group, a substituted or unsubstituted C1 to C10 alkyl group, or a substituted or unsubstituted C6 to C20 aryl group, and

Y 1 and Y 2 are independently a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, a substituted or unsubstituted carbazolyl group, a substituted or unsubstituted dibenzofuranyl group, or a substituted or unsubstituted dibenzothiophenyl group.

8. The organic optoelectronic device of claim 7 , wherein Chemical Formula 4 is represented by Chemical Formula 4-1:

wherein, in Chemical Formula 4-1,

X 2 is O or S,

R c1 , R c2 , R c3 , and R 14 to R 19 are independently hydrogen, deuterium, a halogen, a substituted or unsubstituted silyl group, a substituted or unsubstituted C1 to C10 alkyl group, a substituted or unsubstituted C1 to C10 alkylsilyl group, or a substituted or unsubstituted C6 to C20 aryl group,

n is an integer ranging from 1 to 3,

“substituted” refers to replacement of at least one hydrogen of a substituent or a compound by deuterium, a halogen, a C1 to C4 alkyl group, or a C6 to C12 aryl group.

9. A display device comprising the organic optoelectronic device according to claim 1 .