| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an aryl amine derivative and an organic electroluminescent device using the same as a hole transport material, which have high efficiency and long lifetime.SOLUTION: An aryl amine derivative is represented by the general formula (1). In the formula, Ar, Arand Areach independently represent a substituted or unsubstituted aryl or heteroaryl group; L represents a single bond, a substituted or unsubstituted arylene group with 6-25 ring-forming carbon atoms, or a substituted or unsubstituted heteroarylene group with 5-25 ring-forming atoms; n represents an integer from 1 to 3 inclusive; X, Xand Xeach independently represent a carbon atom or a nitrogen atom, provided that at least one of them is a nitrogen atom.</p> |
