Organic light emitting diode
Provided is an organic light emitting device comprising a first electrode; a second electrode provided to face the first electrode; and an organic material layer having one or more layers provided between the first electrode and the second electrode, wherein a compound of the following Formula 1 is included as a host in the organic material layer having one or more layers, and a compound of the following Formula 2 is included as a dopant in the organic material layer having one or more layers:
1 . An organic light emitting device, comprising:
a first electrode;
a second electrode provided to face the first electrode; and
an organic material layer having one or more layers provided between the first electrode and the second electrode,
wherein a compound of the following Formula 1 is included as a host in the organic material layer having one or more layers, and
a compound of the following Formula 2 is included as a dopant in the organic material layer having one or more layers:
wherein in Formula 1:
L is a phenylene group which is unsubstituted or substituted deuterium;
Ar1 is a dibenzofuran group that is unsubstituted or substituted with deuterium, or dibenzothiophene group that is unsubstituted or substituted with deuterium;
R1 is hydrogen or deuterium;
R2 and R3 the same as or different from each other, and are each independently hydrogen or deuterium;
a is 1;
b is an integer from 1 to 8;
c is an integer from 1 to 4;
d is an integer from 1 to 5;
when a is 2 or more, two or more Ar1s are the same as or different from each other,
when b is 2 or more, two or more R1s are the same as or different from each other,
when c is 2 or more, two or more R2s are the same as or different from each other, and
when d is 2 or more, two or more R3s are the same as or different from each other;
wherein in Formula 2:
A, B, and C are each a benzene ring that is unsubstituted or substituted with an alkyl group or an amine group, where the amine group is unsubstituted or substituted with a phenyl group;
Y1 is boron;
X1 and X2 are each NR;
R is a phenyl group that is unsubstituted or substituted with an alkyl group.
2 . The organic light emitting device of claim 1 , wherein the compound of Formula 1 is selected from among the following compounds:
3 . The organic light emitting device of claim 1 , wherein the compound of Formula 2 is selected from among the following compounds:
4 . The organic light emitting device of claim 1 , wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises the compounds of Formulae 1 and 2.
5 . The organic light emitting device of claim 1 , wherein the organic material layer comprises an electron injection layer, an electron transport layer, or a layer which simultaneously injects and transports electrons, and the electron injection layer, the electron transport layer, or the layer which simultaneously injects and transports electrons comprises the compounds of Formulae 1 and 2.
6 . The organic light emitting device of claim 1 , wherein the organic material layer comprises a hole injection layer, a hole transport layer, or a layer which simultaneously injects and transports holes, and the hole injection layer, the hole transport layer, or the layer which simultaneously injects and transports holes comprises the compounds of Formulae 1 and 2.
7 . The organic light emitting device of claim 1 , wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises the compound of Formula 2 as a blue dopant.