申请人:Yabunouchi Nobuhiro
公开号:US20110278551A1
公开(公告)日:2011-11-17
Provided are an organic electroluminescence device that not only provides high efficiency but also has a long lifetime, and an aromatic amine derivative that realizes the device. The organic electroluminescence device includes an aromatic amine derivative, including at least one substituent A having dibenzofuran and at least one substituent B selected from groups each having dibenzofuran or carbazole, in a molecule thereof, in which the substituent A and the substituent B include groups different from each other, and the substituent A and the substituent B are bonded to the same nitrogen atom, or different nitrogen atoms, in the molecule. The molecules of the aromatic amine derivative hardly crystallize, which improves a yield in the production of the organic electroluminescence device. In the organic electroluminescence 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 an anode, the aromatic amine derivative is contained in at least one layer, particularly a hole transport layer, in the organic thin film layer.
提供了一种既具有高效率又具有长寿命的有机电致发光器件,以及实现该器件的芳香胺衍生物。该有机电致发光器件包括一种芳香胺衍生物,其中该芳香胺衍生物的分子中包含至少一个具有二苯并呋喃的取代基A和至少一个从具有二苯并呋喃或咔唑的各个基团中选择的取代基B,其中取代基A和取代基B包含不同的基团,并且取代基A和取代基B连接到同一氮原子或不同的氮原子上。该芳香胺衍生物的分子几乎不结晶,从而提高了有机电致发光器件的产量。在包括至少一个发光层的一个或多个层的有机薄膜层中,该有机薄膜层被插入在阴极和阳极之间的有机电致发光器件中,该芳香胺衍生物包含在至少一层中,特别是在空穴传输层中。