Organic electroluminescence device and monoamine compound for organic electroluminescence device
An organic electroluminescence device of one or more embodiments includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer and a second electrode on the electron transport region, wherein the hole transport region includes a monoamine compound represented by Formula 1, thereby showing high emission efficiency:
1. An organic electroluminescence device, comprising:
a first electrode;
a hole transport region on the first electrode;
an emission layer on the hole transport region;
an electron transport region on the emission layer; and
a second electrode on the electron transport region,
wherein the hole transport region comprises a monoamine compound represented by the following Formula 1:
in Formula 1,
Ar 1 and Ar 2 are each independently a substituted or unsubstituted alkyl group of 1 to 10 carbon atoms, a substituted or unsubstituted aryl group of 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring,
L is a substituted or unsubstituted arylene group of 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group of 2 to 30 carbon atoms for forming a ring, where L is not a polyacenylene having three or more rings,
R 1 is 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 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring,
“m” is an integer of 1 to 5, and
“n” is an integer of 0 to 7.
2. The organic electroluminescence device of claim 1 , wherein Formula 1 is represented by the following Formula 2 or Formula 3:
in Formula 2 and Formula 3,
Ar 1 , Ar 2 , L, R 1 , and “m” are the same as defined in Formula 1,
in Formula 2, “n” is an integer of 0 to 5, and
in Formula 3, “n” is an integer of 0 to 6.
3. The organic electroluminescence device of claim 1 , wherein L is a substituted or unsubstituted arylene group of 6 to 12 carbon atoms for forming a ring.
4. The organic electroluminescence device of claim 3 , wherein L is a substituted or unsubstituted phenylene group.
5. The organic electroluminescence device of claim 1 , wherein at least one selected from Ar 1 and Ar 2 is a substituted or unsubstituted aryl group of 10 to 20 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 10 to 20 carbon atoms for forming a ring.
6. The organic electroluminescence device of claim 5 , wherein at least one selected from Ar 1 and Ar 2 is a condensed structure with three or more rings.
7. The organic electroluminescence device of claim 1 , wherein Formula 1 is represented by the following Formula 4:
in Formula 4,
L′ is a substituted or unsubstituted arylene group of 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group of 2 to 30 carbon atoms for forming a ring, where L′ is not a polyacenylene having three or more rings,
R 2 is 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 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring,
“p” is an integer of 0 to 5,
“a” is an integer of 0 to 7, and
Ar 1 , L, R 1 , “m” and “n” are the same as defined in Formula 1.
8. The organic electroluminescence device of claim 1 , wherein Formula 1 is represented by the following Formula 5:
in Formula 5,
L′ and L″ are each independently a substituted or unsubstituted arylene group of 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group of 2 to 30 carbon atoms for forming a ring, where L′ and L″ are each independently not a polyacenylene having three or more rings,
R 2 and 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 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring,
“p” and “q” are each independently an integer of 0 to 5,
“a” and “b” are each independently an integer of 0 to 7, and
L, R 1 , “m” and “n” are the same as defined in Formula 1.
9. The organic electroluminescence device of claim 1 , wherein Formula 1 is represented by the following Formula 6:
in Formula 6,
Ar 1 , Ar 2 , L, R 1 and “m” and “n” are the same as defined in Formula 1, and “n” is an integer of 0 to 3.
10. The organic electroluminescence device of claim 1 , wherein the hole transport region comprises:
a hole injection layer on the first electrode; and
a hole transport layer on the hole injection layer,
wherein the hole transport layer comprises the monoamine compound represented by Formula 1.
11. The organic electroluminescence device of claim 10 , wherein the hole transport region further comprises an electron blocking layer on the hole transport layer.
12. The organic electroluminescence device of claim 1 , wherein the monoamine compound represented by Formula 1 is at least one selected from compounds in the following Compound Group 1:
13. A monoamine compound represented by the following Formula 1:
in Formula 1,
Ar 1 and Ar 2 are each independently a substituted or unsubstituted alkyl group of 1 to 10 carbon atoms, a substituted or unsubstituted aryl group of 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring,
L is a substituted or unsubstituted arylene group of 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group of 2 to 30 carbon atoms for forming a ring, where L is not a polyacenylene having three or more rings,
R 1 is 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 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring,
“m” is an integer of 1 to 5, and
“n” is an integer of 0 to 7.
14. The monoamine compound of claim 13 , wherein Formula 1 is represented by the following Formula 2 or Formula 3:
in Formula 2 and Formula 3,
Ar 1 , Ar 2 , L, R 1 , and “m” the same as defined in Formula 1,
In Formula 2, “n” is an integer of 0 to 5, and
In Formula 3, “n” is an integer of 0 to 6.
15. The monoamine compound of claim 13 , wherein L is a substituted or unsubstituted arylene group of 6 to 12 carbon atoms for forming a ring.
16. The monoamine compound of claim 13 , wherein at least one selected from Ar 1 and Ar 2 is a condensed structure with three or more rings.
17. A monoamine compound-represented by the following Formula 4:
in Formula 4,
Ar 1 is a substituted or unsubstituted alkyl group of 1 to 10 carbon atoms, a substituted or unsubstituted aryl group of 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring,
L and L′ are each independently a substituted or unsubstituted arylene group of 6 to 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroarylene group of 2 to 30 carbon atoms for forming a ring, where L and L′ are each not a polyacenylene having three or more rings,
R 1 and R 2 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 30 carbon atoms for forming a ring, or a substituted or unsubstituted heteroaryl group of 2 to 30 carbon atoms for forming a ring,
“m” is an integer of 0 to 5,
“p” is an integer of 0 to 5,
“n” is an integer of 0 to 7, and
“a” is an integer of 0 to 7.
18. The monoamine compound of claim 13 , wherein Formula 1 is represented by the following Formula 6:
in Formula 6,
Ar 1 , Ar 2 , L, R 1 , and “m” are the same as defined in Formula 1, and “n” is an integer of 0 to 3.
19. The monoamine compound of claim 13 , wherein the monoamine compound represented by Formula 1 is a material for a hole transport region.
20. The monoamine compound of claim 13 , wherein the monoamine compound represented by Formula 1 is at least one selected from compounds in the following Compound Group 1: