An aromatic amine derivative with a specified structure whose benzene ring is bonded with a cycloalkyl group. An organic electroluminescence device which comprises at least one organic thin film layer comprising a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein at least one of the organic thin film layer comprises the aromatic amine derivative singly or in combination. The organic EL device employing the aromatic amine derivative reveals practically sufficient luminance even under low applied voltage, exhibits an enhanced efficiency of light emission, and is resistant to degrade even after a long time usage demonstrating a prolonged lifetime.
一种具有特定结构的芳香胺衍
生物,其苯环上键有环烷基。一种有机电致发光器件,它包括至少一个有机薄膜层,该薄膜层由夹在由阳极和阴极组成的一对电极之间的发光层组成,其中至少一个有机薄膜层单独或组合包括芳香族胺衍
生物。采用芳香胺衍
生物的有机电致发光器件即使在低电压下也能显示出足够的亮度,发光效率更高,即使长期使用也不易降解,使用寿命更长。