Amine compound and organic light emitting device including the same
An amine compound represented by Formula 1, and an organic light emitting device including the same: wherein X may be selected from the compounds represented by Formula 2: When the amine compound represented by Formula 1 is included in the hole transport region of an organic light emitting device, the organic light emitting device may achieve long lifespan and high efficiency.
1. A monoamine compound represented by Formula 1, 4, 7, or 8:
wherein, in Formula 1,
X is selected from the compounds in Formula 2:
Y is C, Si, or Ge,
Z 1 to Z 6 are each independently CR or N,
Ar 1 to Ar 3 are each independently hydrogen, deuterium, a halogen atom, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring, an alkyl group having 1 to 20 carbon atoms, or a silyl group having 3 to 20 carbon atoms,
L 1 is a divalent phenyl group,
L 2 and L 3 are each independently a direct linkage, a substituted or unsubstituted arylene group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group having 5 to 30 carbon atoms for forming a ring, and
R and R′ are each independently hydrogen, deuterium, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring, or an alkyl group having 1 to 20 carbon atoms;
wherein, in Formula 4,
A is O, S or CR 2 R 3 ,
R 2 and R 3 are each independently hydrogen, deuterium, an alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring, and
L 1 , L 3 , and Ar 3 are each independently the same as described herein in connection with Formula 1; and
wherein, in Formulae 7 and 8,
L 1 is a direct linkage, a substituted or unsubstituted arylene group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group having 5 to 30 carbon atoms for forming a ring,
L 2 , L 3 , and Ar 1 to Ar 3 are each independently the same as described herein in connection with Formula 1,
A is O, S or CR 2 R 3 , and
R 2 and R 3 are each independently the same as described herein in connection with Formula 4.
2. The monoamine compound of claim 1 , wherein the monoamine compound is represented by Formula 4:
3. The monoamine compound of claim 1 , wherein Formula 1 is represented by Formula 5:
wherein L 1 to L 3 and Ar 1 to Ar 3 are each independently the same as described herein in connection with Formula 1.
4. The monoamine compound of claim 1 , wherein Formula 1 is represented by Formula 6:
wherein A is O, S, or CR 2 R 3 ,
R 2 and R 3 are each independently hydrogen, deuterium, an alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring, and
L 1 , L 3 , and Ar 3 are each independently the same as described herein in connection with Formula 1.
5. The monoamine compound of claim 1 , wherein the monoamine compound is represented by Formula 7:
6. The monoamine compound of claim 1 , wherein the monoamine compound is represented by Formula 8:
7. The monoamine compound of claim 1 , wherein L 1 in Formulae 7 and 8 is a direct linkage, a substituted or unsubstituted divalent phenyl group, or a substituted or unsubstituted divalent biphenyl group.
8. The monoamine compound of claim 1 , wherein Ar 2 is a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted dibenzofuranyl group, a substituted or unsubstituted dibenzothiophene group, or a substituted or unsubstituted fluorene group.
9. The monoamine compound of claim 1 , wherein Ar 3 is a substituted or unsubstituted phenyl group, a substituted or unsubstituted biphenyl group, or a substituted or unsubstituted naphthyl group.
10. A monoamine compound selected from the compounds represented by Compound Group 1:
11. An organic light emitting device, comprising:
an anode;
a hole transport region on the anode;
an emission layer on the hole transport region;
an electron transport region on the emission layer; and
a cathode on the electron transport region,
the hole transport region comprising the monoamine compound of claim 1 .
12. The organic light emitting device of claim 11 , wherein the monoamine compound is represented by Formula 4:
13. The organic light emitting device of claim 11 , wherein Formula 1 is represented by Formula 5:
14. The organic light emitting device of claim 11 , wherein Formula 1 is represented by Formula 6:
wherein A is O, S, or CR 2 R 3 ,
R 2 and R 3 are each independently hydrogen, deuterium, an alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group having 5 to 30 carbon atoms for forming a ring, and
L 1 , L 3 , and Ar a are independently the same as described herein in connection with Formula 1.
15. The organic light emitting device of claim 11 , wherein the monoamine compound is represented by Formula 7:
16. The organic light emitting device of claim 11 , wherein the monoamine compound is represented by Formula 8:
17. An organic light emitting device, comprising:
an anode;
a hole transport region on the anode;
an emission layer on the hole transport region;
an electron transport region on the emission layer; and
a cathode on the electron transport region,
the hole transport region comprising at least one selected from the compounds represented by Compound Group 1:
18. The monoamine compound of claim 1 , wherein in Formulae 7 and 8, L 1 is a divalent phenyl group.