Compound and organic light emitting device comprising same
A compound of Chemical Formula 1: and an organic light emitting device including the same.
1. A compound of the following Chemical Formula 1:
wherein in Chemical Formula 1,
L1 is a direct bond; or a substituted or unsubstituted arylene group,
D is deuterium,
n1 is an integer of 0 to 8,
n2 is 8,
n3 is 7,
n4 is 0 or 1, and
15≤n1+n2+n3+n4≤24.
2. The compound of claim 1 , wherein L1 is a direct bond; or a monocyclic or polycyclic arylene group having 6 to 30 carbon atoms unsubstituted or substituted with deuterium.
3. The compound of claim 1 , wherein the compound of Chemical Formula 1 is any one selected from the following compounds:
4. An organic light emitting device comprising:
a first electrode;
a second electrode provided to face the first electrode; and
an organic material layer including one or more layers provided between the first electrode and the second electrode,
wherein one or more layers of the organic material layer include the compound of claim 1 .
5. The organic light emitting device of claim 4 , wherein the organic material layer includes a hole injection layer, a hole transfer layer or an electron blocking layer, and the hole injection layer, the hole transfer layer or the electron blocking layer includes the compound.
6. The organic light emitting device of claim 4 , wherein the organic material layer includes a light emitting layer, and the light emitting layer includes the compound.
7. The organic light emitting device of claim 4 , wherein the organic material layer includes a light emitting layer, and the light emitting layer includes the compound as a host of the light emitting layer.
8. The organic light emitting device of claim 7 , wherein the light emitting layer includes a dopant, and the dopant includes one or more selected from the group consisting of a fluorescent dopant, a phosphorescent dopant and a thermal delayed fluorescence-based dopant.
9. The organic light emitting device of claim 8 , wherein the fluorescent dopant includes one or more selected from the group consisting of an arylamine-based compound and a boron-based compound.