Aromatic amine derivative, and organic electroluminescent element using same

1. An organic electroluminescence device comprising an anode, a cathode, and at least one organic thin film layers between the anode and the cathode, wherein:

the at least one organic thin film layers comprises a light emitting layer and a hole transporting layer between the anode and the light emitting layer;

the hole transporting layer comprises an anode side first hole transporting layer and a cathode side second hole transporting layer; and

any of the anode side first hole transporting layer and the cathode side second hole transporting layer comprise an aromatic amine derivative represented by formula (1):

wherein HAr 1 represents a group selected from formulae (2) to (4):

in formulae (2) to (4), n represents an integer of 0 to 4; and each R independently represents a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 3 to 50 ring atoms, a halogen atom, a substituted or unsubstituted fluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, or a cyano group, when more than one R is present, the groups R may be the same or different;

L 1 to L 2 may be the same or different and each independently represents a group represented by formula (6):

and

L 3 represents a single bond;

Ar 2 represents a group selected from formulae (8) and (10), provided that Ar 2 does not include a carbazole and a substitited or unsubstituted animo group:

in formulae (8) to (11), n represents an integer of 0 to 4; and each R independently represents a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 3 to 50 ring atoms, a halogen atom, a substituted or unsubstituted fluoroalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted fluoroalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted aryloxy group having 6 to 50 ring carbon atoms, or a cyano group, when more than one R is present, the groups R may be the same or different.

2. The organic electroluminescence according to claim 1 , wherein the aromatic amine derivative is represented by formula (12):

wherein HAr 1 , Ar 2 , L 2 , and L 3 are as defined in formula (1).

3. The organic electroluminescence device according to claim 1 , wherein HAr 1 does not include a carbazole skeleton and a substituted or unsubstituted amino group.

4. The organic electroluminescence device according to claim 1 , wherein n in formulae (2) and (4) is 0.

5. The organic electroluminescence device according to claim 1 , wherein n in formulae (8) and (10) is 0.

6. The organic electroluminescence device according to claim 2 , wherein HAr 1 does not include a carbazole skeleton and a substituted or unsubstituted amino group.

7. The organic electroluminescence device according to claim 2 , wherein n in formulae (2) and (4) is 0.

8. The organic electroluminescence device according to claim 2 , wherein n in formulae (8) and (10) is 0.

9. The organic electroluminescence device according to claim 1 , wherein the cathode side second hole transporting layer comprises the aromatic amine derivative.

10. The organic electroluminescence device according to claim 1 , wherein the organic electroluminescence device comprises a hole injecting layer between the anode and the anode side first hole transporting layer.

11. The organic electroluminescence device according to claim 1 , wherein each of L 1 and L 2 is a p-phenylene group.

12. The organic electroluminescence device according to claim 2 , wherein L 2 is a p-phenylene group.

13. The organic electroluminescence device according to claim 1 , wherein one of HAr 1 and Ar 2 is a 4-dibenzofuranyl group.

14. The organic electroluminescence device according to claim 1 , wherein one of HAr 1 and Ar 2 is a 2-dibenzofuranyl group.

15. The organic electroluminescence device according to claim 1 , wherein HAr 1 and Ar 2 are both 4-dibenzofuranyl groups.

16. The organic electroluminescence device according to claim 1 , wherein HAr 1 and Ar 2 are both 2-dibenzofuranyl groups.