Aromatic amine derivative and electroluminescence device using the same
Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin layer comprising a single layer or plural layers including a light emitting layer is interposed between a cathode and an anode, wherein at leas one layer of the above organic thin layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Thus, the organic electroluminescence device is less liable to be crystallized in molecules, improved in a yield in producing the organic electroluminescence device and extended in a lifetime.
1. An aromatic amine derivative represented by the following formula (5):
wherein at least one of Ar 7 to Ar 9 is represented by the following formula (3):
wherein
R 4 to R 6 each are independently a hydrogen atom, a non-substituted aryl group having 5 to 50 ring carbon atoms, a substituted aryl group having 5 to 50 ring carbon atoms which said substituted aryl group is substituted by an alkyl group having 1 to 4 carbon atoms, a substituted or non-substituted alkyl group having 1 to 50 carbon atoms, a substituted or non-substituted alkoxy group having 1 to 50 carbon atoms, a substituted or non-substituted aralkyl group having 6 to 50 carbon atoms, a substituted or non-substituted aryloxy group having 5 to 50 ring carbon atoms, a substituted or non-substituted arylthio group having 5 to 50 ring carbon atoms, a substituted or non-substituted alkoxycarbonyl group having 2 to 50 carbon atoms, an amino group substituted with a substituted or non-substituted aryl group having 5 to 50 ring carbon atoms, a halogen atom, a cyano group, a nitro group, a hydroxyl group or a carboxyl group;
X is a sulfur atom or an oxygen atom;
f and h each are an integer of 0 to 4;
g is an integer of 0 to 3; and
i is an integer of 1 to 3;
plural R 4 or R 5 or R 6 may be combined with each other to form a cyclic structure of a saturated or unsaturated five-membered ring or six-membered ring which may be substituted;
when i is 2 or more and h is not 0, plural R 6 may be combined with each other to form a cyclic structure of a saturated or unsaturated five-membered ring or six-membered ring which may be substituted;
in formula (5), among Ar 7 to Ar 9 , the groups which are not represented by formula (3) each are independently a hydrogen atom, a substituted or non-substituted aryl group having 10 to 50 ring carbon atoms, a substituted or non-substituted alkyl group having 1 to 50 carbon atoms, a substituted or non-substituted alkoxy group having 1 to 50 carbon atoms, a substituted or non-substituted aralkyl group having 6 to 50 carbon atoms, a substituted or non-substituted aryloxy group having 5 to 50 ring carbon atoms, a substituted or non-substituted arylthio group having 5 to 50 ring carbon atoms, a substituted or non-substituted alkoxycarbonyl group having 2 to 50 carbon atoms, an amino group substituted with a substituted or non-substituted aryl group having 5 to 50 ring carbon atoms, a halogen atom, a cyano group, a nitro group, a hydroxyl group or a carboxyl group.
2. The aromatic amine compound of claim 1 , wherein among Ar 7 to Ar 9 , the groups which are not represented by formula (3) each are independently a substituted or unsubstituted aryl group having 10 to 50 ring carbon atoms.
3. The aromatic amine compound of claim 1 , wherein among Ar 7 to Ar 9 , the groups which are not represented by formula (3) are independently an optionally substituted group selected from the group consisting of a napthyl group, a biphenylyl group, an anthranyl group, a phenanthryl group, a pyrenyl group, a chrysenyl group, a fluoroanthenyl group, and a fluorenyl group.
4. The aromatic amine compound of claim 1 , wherein in the case of i is 2, plural R 6 is combined with each other to form a cyclic structure of a saturated or unsaturated five-membered ring which is optionally substituted.
5. An organic electroluminescence device, comprising an organic thin layer comprising a single layer or plural layers including at least a light emitting layer interposed between a cathode and an anode, wherein at least one layer of the organic thin layer comprises the aromatic amine derivative of claim 1 in the form of a single component or a mixed component.
6. The organic electroluminescence device of claim 5 , wherein the organic thin layer comprises a hole injecting layer or a hole transporting layer, and the hole injecting layer or the hole transporting layer comprises the aromatic amine derivative.
7. The organic electroluminescence device of claim 5 , wherein the light emitting layer comprises styrylamine, arylamine, or a combination thereof.
8. The organic electroluminescence device of claim 5 ,which emits blue light.
9. The organic electroluminescence device of claim 6 , comprising a hole injecting layer that comprises the aromatic amine derivative.
10. The organic electroluminescence device of claim 6 , comprising a hole transporting layer that comprises the aromatic amine derivative.