Organic light emitting device
Provided is an organic light emitting device comprising: an anode; a cathode; and a light-emitting layer disposed between the anode and the cathode, wherein the light-emitting layer comprises a compound of the following Chemical Formula 1, a compound of the following Chemical Formula 2, and a compound of the following Chemical Formula 3; as defined in the specification.
1 . An organic light emitting device, comprising:
an anode, a cathode, and a light emitting layer between the anode and the cathode,
wherein the light emitting layer comprises a compound of the following Chemical Formula 1, a compound of the following Chemical Formula 2, and a compound of the following Chemical Formula 3:
wherein in Chemical Formula 1:
A is a benzene ring;
Ar 1 and Ar 2 are each independently a substituted or unsubstituted C 6-60 aryl or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O and S;
R 1 is hydrogen, deuterium, a substituted or unsubstituted C 1-60 alkyl, a substituted or unsubstituted C 6-60 aryl, or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O and S; and
a is an integer of 0 to 10;
wherein in Chemical Formula 2:
Ar 3 and Ar 4 are each independently a substituted or unsubstituted C 6-60 aryl or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O and S;
R 2 and R 3 are each independently hydrogen, deuterium, a substituted or unsubstituted C 1-60 alkyl, a substituted or unsubstituted C 6-60 aryl, or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O and S; and
b and c are each independently an integer of 0 to 7;
wherein in Chemical Formula 3:
B is a substituted or unsubstituted C 6-60 aromatic ring or a substituted or unsubstituted C 2-60 heteroaromatic ring containing any one or more heteroatoms selected from the group consisting of N, O and S;
X 1 to X 3 are each independently N or CH, provided that at least one of X 1 to X 3 is N;
Ar 5 and Ar 6 are each independently a substituted or unsubstituted C 6-60 aryl or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O and S;
L 1 is a single bond, a substituted or unsubstituted C 6-60 arylene, or a substituted or unsubstituted C 2-60 heteroarylene containing any one or more heteroatoms selected from the group consisting of N, O and S;
R 4 and R 5 are each independently hydrogen, deuterium, a substituted or unsubstituted C 1-60 alkyl, a substituted or unsubstituted C 6-60 aryl, or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O and S;
d is an integer of 0 to 10;
e is an integer of 0 to 3; and
Ar 7 is dibenzothiophenyl, or any one substituent selected from the group consisting of the following substituents:
wherein in the above group of substituents:
Y 1 to Y 3 are each independently N or CH, provided that at least one of Y 1 to Y 3 is N;
Ar′ 1 and Ar′ 2 are each independently a substituted or unsubstituted C 6-60 aryl or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O and S; and
R′ 1 to R′ 7 are each independently hydrogen, deuterium, a substituted or unsubstituted C 6-60 aryl, or a substituted or unsubstituted C 2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O and S.
2 . The organic light emitting device according to claim 1 , wherein:
the Chemical Formula 1 is any one of the following Chemical Formula 1-1 to Chemical Formula 1-5:
wherein in Chemical Formulas 1-1 to 1-5:
Ar 1 , Ar 2 , R 1 and a are as defined in claim 1 .
3 . The organic light emitting device according to claim 1 , wherein:
Ar 1 and Ar 2 are each independently phenyl, biphenylyl, phenyl biphenylyl, terphenylyl, dimethylfluorenyl, dimethylfluorenyl phenyl, dibenzofuranyl phenyl, dibenzothiophenyl phenyl, dibenzofuranyl, dibenzothiophenyl, phenyl substituted with 5 deuteriums, biphenylyl substituted with 5 deuteriums, or terphenylyl substituted with 5 deuteriums.
4 . The organic light emitting device according to claim 1 , wherein:
at least one of Ar 1 and Ar 2 is a substituted or unsubstituted C 6-20 aryl.
5 . The organic light emitting device according to claim 1 , wherein:
the compound of Chemical Formula 1 is any one compound selected from the group consisting of the following compounds:
6 . The organic light emitting device according to claim 1 , wherein:
the Chemical Formula 2 is the following Chemical Formula 2-1:
wherein in Chemical Formula 2-1:
Ar 3 , Ar 4 , R 2 , R 3 , b and c are as defined in claim 1 .
7 . The organic light emitting device according to claim 1 , wherein:
Ar 3 and Ar 4 are each independently phenyl, biphenylyl, phenyl biphenylyl, terphenylyl, naphthyl, dimethylfluorenyl, dibenzofuranyl, dibenzothiophenyl, phenyl substituted with 5 deuteriums, or biphenylyl substituted with 1 to 5 deuteriums.
8 . The organic light emitting device according to claim 1 , wherein:
R 2 and R 3 are each independently hydrogen, deuterium or phenyl.
9 . The organic light emitting device according to claim 1 , wherein:
b and c are each independently 0, 1 or 5.
10 . The organic light emitting device according to claim 1 , wherein:
the compound of Chemical Formula 2 is any one compound selected from the group consisting of the following compounds:
11 . The organic light emitting device according to claim 1 , wherein:
B is a benzene ring, a naphthalene ring, a phenanthrene ring, a triphenylene ring, a phenyl carbazole ring, a dimethylfluorene ring, a dibenzofuran ring, or a dibenzothiophene ring.
12 . The organic light emitting device according to claim 1 , wherein:
the Chemical Formula 3 is any one of the following Chemical Formula 3-1 to Chemical Formula 3-10:
wherein in Chemical Formulas 3-1 to 3-10:
X 1 to X 3 , Ar 5 , Ar 6 , Ar 7 , L 1 , R 4 , R 5 , d and e are as defined in claim 1 .
13 . The organic light emitting device according to claim 1 , wherein:
Ar 5 and Ar 6 are each independently phenyl, phenyl substituted with 5 deuteriums, naphthyl, phenanthrenyl, triphenylenyl, dimethylfluorenyl, carbazolyl, carbazolyl substituted with 8 deuteriums, dibenzofuranyl, dibenzothiophenyl, or
14 . The organic light emitting device according to claim 1 , wherein:
Ar′ 1 and Ar′ 2 are each independently phenyl, biphenylyl, naphthyl, phenanthrenyl, triphenylenyl, phenyl substituted with 5 deuteriums, phenyl substituted with one cyano, phenyl substituted with one trifluoromethyl, benzothiophenyl, dibenzofuranyl, or dibenzothiophenyl.
15 . The organic light emitting device according to claim 1 , wherein:
R′ 1 to R′ 7 are each independently hydrogen, deuterium, or phenyl.
16 . The organic light emitting device according to claim 1 , wherein:
L 1 is a single bond, phenylene, naphthyldiyl, dibenzofuranyldiyl, or dibenzothiophenyldiyl.
17 . The organic light emitting device according to claim 1 , wherein:
R 4 and R 5 are each independently hydrogen, deuterium, phenyl, naphthyl, carbazolyl, benzothiophenyl, dibenzofuranyl, dibenzothiophenyl, phenyl substituted with 4 deuteriums, or phenyl substituted with 5 deuteriums.
18 . The organic light emitting device according to claim 1 , wherein:
the compound of Chemical Formula 3 is any one compound selected from the group consisting of the following compounds: