Heterocyclic compound and organic light emitting device using the same
Disclosed are a heterocyclic compound represented by Formula 1 and an organic light emitting device using the same. The heterocyclic compound is used as a material for hole injection layer, hole transport layer, hole injection and transport layer, light emission layer, electron transport layer, or electron injection layer of the organic light emitting device and provides improved efficiency, low driving voltage, and improved lifetime characteristic.
1. A compound represented by the following Formula 1:
in Formula 1,
X 1 is O or S,
R 1 is hydrogen or a substituted or unsubstituted C 1-60 alkyl,
L 1 and L 2 are each independently a direct bond or a substituted or unsubstituted C 6-60 arylene,
Y 1 , Y 2 , and Y 3 are each independently Nor CR 2 , provided that at least one of them is N, R 2 is hydrogen or a substituted or unsubstituted C 1-60 alkyl,
Ar 1 and Ar 2 are each independently a substituted or unsubstituted C 6-60 aryl, or a substituted or unsubstituted C 5-60 heteroaryl containing at least one of N, O, and S, or combined with adjacent Y 1 , Y 2 , and Y 3 to form a ring,
n is independently 0 or 1,
m and l are independently 1 or 2, and
Het is any one selected from the group consisting of the following Formulas 1-1-1 to 1-1-4:
wherein, in Formulas 1-1-1 to 1-1-4,
X 2 is O, S, or CR′ R″,
R′ and R″ are each independently hydrogen, or a substituted or unsubstituted C 1-60 alkyl, and
R 3 and R′ 3 are each independently hydrogen, a substituted or unsubstituted C 1-60 alkyl, a substituted or unsubstituted C 6-60 aryl, or a substituted or unsubstituted C 5-60 heteroaryl containing at least one of N, O, and S.
2. The compound of claim 1 , wherein Het is any one selected from the group consisting of the following formulas:
wherein
R′ 3 and l are as defined in claim 1 .
3. The compound of claim 1 , wherein the compound represented by Formula 1 is any one selected from the compounds represented by the following Formulas 2 to 6:
wherein, in Formulas 2 to 6 above,
X 1 , L 1 , L 2 , Het, Y 1 , Y 2 , Y 3 , R 1 , Ar 1 , Ar 2 , and n are as defined in claim 1 .
4. The compound of claim 1 , wherein the compound represented by Formula 1 is any one selected from compounds represented by the following Formulas 7 to 11:
wherein, in Formulas 7 to 11 above,
X 1 , L 1 , L 2 , Het, R 1 , n, and m are as defined in claim 1 .
5. The compound of claim 1 , wherein R 1 is hydrogen or a substituted or unsubstituted C 1-10 to alkyl.
6. The compound of claim 1 , wherein R 3 is hydrogen or any one selected f group consisting of the following formulas:
7. The compound of claim 1 , wherein L 1 and L 2 are each independently a direct bond or
8. The compound of claim 1 , wherein Ar 1 and Ar 2 are combined with adjacent Y 1 , Y 2 , and Y 3 to form a ring, or are each independently any one selected from the group consisting of the following formulas:
9. The compound of claim 1 , wherein the compound represented by Formula 1 is any one selected from the group consisting of the following formulas:
10. An organic light emitting device comprising: a first electrode; a second electrode provided to face the first electrode; and at least one layer of an organic material layer provided between the first electrode and the second electrode, wherein the at least one layer of the organic material layer includes the compound according to claim 1 .
11. The organic light emitting device of claim 10 , wherein the organic material layer including said compound is a light emitting layer.
12. The organic light emitting device of claim 11 , wherein the compound is a host material in the light emitting layer.
13. The organic light emitting device of claim 12 , wherein the light emitting layer further includes a dopant material.
14. The organic light emitting device of claim 10 , wherein the organic material layer including said compound is an electron injection layer; an electron transport layer; or a layer simultaneously performing electron injection and electron transport.