Organic electroluminescence device

1. An organic electroluminescence (EL) device, comprising:

an anode;

a cathode; and

an emission layer between the anode and the cathode, the emission layer emitting a light via a singlet excited state,

a stacking structure of at least three layers having different components being provided between the anode and the emission layer,

wherein the stacking structure includes:

a first layer including an electron accepting compound having a lowest unoccupied molecular orbital (LUMO) level of about −9.0 eV to about −4.0 eV;

a second layer including a compound represented by the following Formula (1), the second layer being closer to the emission layer than the first layer; and

a third layer including a compound represented by the following Formula (2), the third layer being closer to the emission layer than the second layer,

wherein the emission layer includes a compound represented by the following Formula (3):

wherein, in Formula (1):

Ar 1 , Ar 2 , and Ar 3 are each independently a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group,

Ar 4 is a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, a substituted or unsubstituted carbazolyl group, or a substituted or unsubstituted alkyl group, and

L 1 is a single bond, a substituted or unsubstituted arylene group, or a substituted or unsubstituted heteroarylene group,

wherein, in Formula (2):

R 1 to R 13 are each independently an aryl group having 6 to 30 ring carbon atoms, a heteroaryl group having 5 to 30 ring carbon atoms, an alkyl group having 1 to 15 carbon atoms, a halogen atom, a hydrogen atom, or a deuterium atom,

a and b are each independently an integer of 0 to 3,

R 14 is an aryl group having 6 to 30 ring carbon atoms, a heteroaryl group having 5 to 30 ring carbon atoms, or an alkyl group having 1 to 15 carbon atoms, and

L 3 is a single bond or a divalent connecting group having at least 4 carbon atoms, and

wherein, in Formula (3):

each Ar 15 is independently a hydrogen atom, a deuterium atom, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, a substituted or unsubstituted alkyl group having 7 to 50 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, a substituted or unsubstituted arylthio group having 6 to 50 ring carbon atoms, a substituted or unsubstituted alkoxycarbonyl group having 2 to 50 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a heterocyclic group having 5 to 50 ring atoms, a substituted or unsubstituted silyl group, a carboxylic group, a halogen atom, a cyano group, a nitro group or a hydroxyl group, and

n is an integer from 1 to 10.

2. The organic EL device as claimed in claim 1 , wherein the first layer is disposed near the anode.

3. The organic EL device as claimed in claim 2 , wherein the third layer is disposed near the emission layer.

4. The organic EL device as claimed in claim 1 , wherein a compound having a carbazolyl group is included in the first layer, the second layer, and the third layer of the stacking structure.

5. The organic EL device as claimed in claim 4 , wherein the compound represented by the above Formula (1) or Formula (2) is included in the first layer, the second layer, and the third layer of the stacking structure.