An aromatic amine derivative including a substituent A and a substituent B each represented by the formula (1) or (2) and having an arylene group bound to a carbazole structure, in which the substituent A and the substituent B include groups different from each other in the position at which the arylene group is bonded to the carbazole structure, and the substituent A and the substituent B are bonded to the same nitrogen atom or different nitrogen atoms in the molecule; an organic electroluminescent device including an organic thin-film layer formed of one or more layers including at least a light emitting layer, the organic thin-film layer being interposed between a cathode and a anode, in which at least one layer of the organic thin-film layer contains the aromatic amine derivative, and the molecules are rarely crystallized.
一种芳香胺衍
生物,包括各自由式(1)或(2)表示并具有与
咔唑结构结合的芳基的取代基A和取代基B,其中取代基A和取代基B在芳基与
咔唑结构结合的位置上包括彼此不同的基团,并且取代基A和取代基B与分子中的相同氮原子或不同氮原子结合;一种有机电致发光器件,包括由一层或多层形成的有机薄膜层,该有机薄膜层至少包括一个发光层,该有机薄膜层位于阴极和阳极之间,其中至少一层有机薄膜层含有芳香胺衍
生物,且分子很少结晶。