Organic electroluminescence device and fused polycyclic compound for organic electroluminescence device

1. An organic electroluminescence device, comprising:

a first electrode;

a second electrode facing the first electrode; and

a plurality of organic layers between the first electrode and the second electrode,

wherein the first electrode and the second electrode are each independently comprise at least one selected from Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF/Ca, LiF/Al, Mo, Ti, In, Sn, and Zn, or a compound of two or more selected from them, a mixture of two or more selected from them, or oxides of one or more selected from them, and

wherein at least one organic layer among the plurality of organic layers comprises a fused polycyclic compound represented by Formula 1:

wherein, in Formula 1,

M is B, Al, Ga, or In,

X 1 and X 2 are each independently NR 1 , O, S, P(═O)R 2 , or P(═S)R 3 ,

R 1 to R 3 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 carbon atoms to form a ring, or a substituted or unsubstituted heteroaryl group of 2 to 60 carbon atoms to form a ring, and any of R 1 to R 3 are optionally combined with an adjacent group to form a ring,

Cy 1 to Cy 3 are each independently a substituted or unsubstituted aromatic hydrocarbon ring, or a substituted or unsubstituted aromatic heterocycle, and any of Cy 1 to Cy 3 are optionally combined with an adjacent group to form a ring, and

at least one among Cy 1 to Cy 3 is substituted with a substituent represented by Formula 2:

wherein, in Formula 2,

R 4 and R 5 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 carbon atoms to form a ring, or a substituted or unsubstituted heteroaryl group of 2 to 60 carbon atoms to form a ring, and any of R 4 and R 5 are optionally combined with an adjacent group to form a ring,

n 1 and n 2 are each independently an integer of 0 to 4,

at least one among R 4 and R 5 is a substituted or unsubstituted amine group, or a substituted or unsubstituted carbazole group,

if R 4 is the substituted or unsubstituted amine group, or the substituted or unsubstituted carbazole group, n 1 is an integer of 1 to 4,

if R 5 is the substituted or unsubstituted amine group, or the substituted or unsubstituted carbazole group, n 2 is an integer of 1 to 4,

Y is a direct linkage, and

a is 0 or 1.

2. The organic electroluminescence device of claim 1 , wherein

the plurality of organic layers comprise:

a hole transport region on the first electrode;

an emission layer on the hole transport region; and

an electron transport region on the emission layer, and

the emission layer comprises the fused polycyclic compound represented by Formula 1.

3. The organic electroluminescence device of claim 2 , wherein the emission layer is to emit delayed fluorescence.

4. The organic electroluminescence device of claim 2 , wherein

the emission layer is a delayed fluorescence emission layer comprising a first compound and a second compound, and

the second compound comprises the fused polycyclic compound represented by Formula 1.

5. The organic electroluminescence device of claim 2 , wherein

the emission layer comprises:

a first compound having a first lowest triplet excitation energy level;

a second compound having a second lowest triplet excitation energy level which is lower than the first lowest triplet excitation energy level; and

a third compound having a third lowest triplet excitation energy level which is lower than the second lowest triplet excitation energy level, and

the second compound comprises the fused polycyclic compound represented by Formula 1.

6. The organic electroluminescence device of claim 5 , wherein

the second compound is a delayed fluorescence material, and

the third compound is a phosphorescence material or a fluorescence material.

7. The organic electroluminescence device of claim 1 , wherein

the fused polycyclic compound represented by Formula 1 is represented by Formula 3:

wherein, in Formula 3,

R 11 to R 21 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 carbon atoms to form a ring, or a substituted or unsubstituted heteroaryl group of 2 to 60 carbon atoms to form a ring, and any of R 11 to R 21 are optionally combined with an adjacent group to form a ring,

at least one among R 11 to R 21 is represented by Formula 2, and

M, X 1 , and X 2 are the same as defined in Formula 1.

8. The organic electroluminescence device of claim 7 , wherein the fused polycyclic compound represented by Formula 3 is represented by Formula 4:

wherein, in Formula 4,

R 31 to R 33 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 carbon atoms to form a ring, or a substituted or unsubstituted heteroaryl group of 2 to 60 carbon atoms to form a ring, and any of R 31 to R 33 are optionally combined with an adjacent group to form a ring,

at least one among R 31 to R 33 is represented by Formula 2, and

M, X 1 , and X 2 are the same as defined in Formula 1.

9. The organic electroluminescence device of claim 1 , wherein

the substituent represented by Formula 2 is represented by Formula 5-1 or Formula 5-2:

wherein, in Formulae 5-1 and 5-2,

R 4 , R 5 , n 1 , and n 2 are the same as defined in Formula 2.

10. The organic electroluminescence device of claim 9 , wherein

the substituent represented by Formula 2 is represented by any one among Formula 6-1 to Formula 6-4:

wherein, in Formulae 6-1 to 6-4,

R 41 to R 46 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 carbon atoms to form a ring, or a substituted or unsubstituted heteroaryl group of 2 to 60 carbon atoms to form a ring, and any of R 41 to R 46 are optionally combined with an adjacent group to form a ring,

n 3 and n 4 are each independently an integer of 0 to 3,

n 5 to n 8 are each independently an integer of 0 to 4,

m 1 and m 2 are each independently 0 or 1, and

at least one of m 1 and m 2 is 1.

11. The organic electroluminescence device of claim 1 , wherein

the substituent represented by Formula 2 is represented by Formula 7-1 or Formula 7-2:

wherein, in Formulae 7-1 and 7-2,

R 4 , and R 5 are the same as defined in Formula 2.

12. The organic electroluminescence device of claim 1 , wherein

X 1 and X 2 are each independently NR 1 , or O, and

R 1 is a substituted or unsubstituted phenyl group.

13. The organic electroluminescence device of claim 1 , wherein the fused polycyclic compound represented by Formula 1 is at least one selected among compounds in Compound Group 1:

14. A fused polycyclic compound represented by Formula 1:

wherein, in Formula 1,

M is B, Al, Ga, or In,

X 1 and X 2 are each independently NR 1 , O, S, P(═O)R 2 , or P(═S)R 3 , R 1 to R 3 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 carbon atoms to form a ring, or a substituted or unsubstituted heteroaryl group of 2 to 60 carbon atoms to form a ring,

and any of R 1 to R 3 are optionally combined with an adjacent group to form a ring,

Cy 1 to Cy 3 are each independently a substituted or unsubstituted aromatic hydrocarbon ring, or a substituted or unsubstituted aromatic heterocycle, and any of Cy 1 to Cy 3 are optionally combined with an adjacent group to form a ring, and

at least one among Cy 1 to Cy 3 is substituted with a substituent represented by Formula 2:

wherein, in Formula 2,

R 4 and R 5 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 carbon atoms to form a ring, or a substituted or unsubstituted heteroaryl group of 2 to 60 carbon atoms to form a ring, and any of R 4 and R 5 are optionally combined with an adjacent group to form a ring,

n 1 and n 2 are each independently an integer of 0 to 4,

at least one among R 4 and R 5 is a substituted or unsubstituted amine group, or a substituted or unsubstituted carbazole group,

if R 4 is the substituted or unsubstituted amine group, or the substituted or unsubstituted carbazole group, n 1 is an integer of 1 to 4,

if R 5 is the substituted or unsubstituted amine group, or the substituted or unsubstituted carbazole group, n 2 is an integer of 1 to 4,

Y is a direct linkage, and

a is 0 or 1.

15. The fused polycyclic compound of claim 14 , wherein

the fused polycyclic compound represented by Formula 1 has an absolute value of a difference between a lowest singlet excitation energy level (S1) and a lowest triplet excitation energy level (T1) of about 0.4 eV or less.

16. The fused polycyclic compound of claim 14 , wherein

the fused polycyclic compound represented by Formula 1 is represented by Formula 3:

wherein, in Formula 3,

R 11 to R 21 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 carbon atoms to form a ring, or a substituted or unsubstituted heteroaryl group of 2 to 60 carbon atoms to form a ring, and any of R 11 to R 21 are optionally combined with an adjacent group to form a ring,

at least one among R 11 to R 21 is represented by Formula 2, and

M, X 1 , and X 2 are the same as defined in Formula 1.

17. The fused polycyclic compound of claim 16 , wherein the fused polycyclic compound represented by Formula 3 is represented by Formula 4:

wherein, in Formula 4,

R 31 to R 33 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted amine group, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 carbon atoms to form a ring, or a substituted or unsubstituted heteroaryl group of 2 to 60 carbon atoms to form a ring, and any of R 31 to R 33 are optionally combined with an adjacent group to form a ring,

at least one among R 31 to R 33 is represented by Formula 2, and

M, X 1 , and X 2 are the same as defined in Formula 1.

18. The fused polycyclic compound of claim 14 , wherein

the substituent represented by Formula 2 is represented by any one among Formula 6-1 to Formula 6-4:

wherein, in Formulae 6-1 to 6-4,

R 41 to R 46 are each independently a hydrogen atom, a deuterium atom, a halogen atom, a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, a substituted or unsubstituted aryl group of 6 to 60 carbon atoms to form a ring, or a substituted or unsubstituted heteroaryl group of 2 to 60 carbon atoms to form a ring, and any of R 41 to R 46 are optionally combined with an adjacent group to form a ring,

n 3 and n 4 are each independently an integer of 0 to 3,

n 5 to n 8 are each independently an integer of 0 to 4,

m 1 and m 2 are each independently 0 or 1, and

at least one of m 1 and m 2 is 1.

19. The fused polycyclic compound of claim 14 , wherein

the substituent represented by Formula 2 is represented by Formula 7-1 or Formula 7-2:

wherein, in Formulae 7-1 and 7-2,

R 4 , and R 5 are the same as defined in Formula 2.

20. The fused polycyclic compound of claim 14 , wherein the fused polycyclic compound represented by Formula 1 is at least one selected among compounds in Compound Group 1: