There are provided novel blue light-emitting organic electroluminescent polymers having a main chain consisting of 9,10-diphenylanthracene and vinylene, and electroluminescent devices using the same. With the introduction of substituents which are of high thermal stability and are capable of steric hindrance at the alpha position of the vinyl group, the electroluminescent polymers make it easy to conduct inter- and intra-molecular energy transfer, and the injection and transportation of holes or electrons, as well as restraining &pgr;-stacking between polymer chains. Also, the prevention of intermolecular two- and three-dimensional interference by the introduced bulky substituents leads to reduced extinction of excitons, whereby the organic electroluminescent device can emit blue light at high luminous efficiency.
提供了一种新型的蓝光发射有机电致发光聚合物,其主链由9,10-二苯基
蒽和
乙烯基组成,并使用相应的电致发光器件。通过引入高热稳定性和能够在
乙烯基α位引起立体阻碍的取代基,使电致发光聚合物易于进行分子内和分子间能量转移,以及电子或空穴的注入和传输,并抑制聚合物链之间的π-堆积。此外,引入大体积取代基可以防止分子间的二维和三维干扰,从而减少激子的消光,使有机电致发光器件能够以高亮度效率发射蓝光。