中文摘要：

有机电致磷光材料,由于具有100%的内量子效率,在OLED领域中被广泛应用。为了避免磷光材料本身存在的三线态-三线态激子猝灭导致磷光效率的降低,磷光材料应用于有机电致发光器件时,需要用主体材料将其均匀分散以减少发光中心间的相互作用,因此主体材料的选择对磷光器件是十分重要的。而聚合物主体材料由于具有易加工,成本低等优点,且对于实现高性能的蓝光和白色旋涂器件有重要意义,而备受关注。本文设计合成了一种聚芴类主体材料PSiF,聚合物表现出良好的热稳定性（热分解温度Td≥400℃）,将其与绿色磷光染料Ir（ppy）3以16 wt%的浓度掺杂,器件的最大的发光效率为0.25cd/A;最大的功率效率为0.14l m/w。

英文摘要：

Phosphorescent materials have potential applicat ions for OLEDs due to good theoretical internal quantum efficiency of 100 %. To avoid triplet-triplet annihilation resulting in decreasing phosphorescence efficiency, it is usually that phosphorescent dopents dispersed in host materials as emissive layer for OLEDs, thus host materials are important, especially for polymeric host materials. Polymeric host materials have attracted extensive attention because of their inexpensive solution-processing techiniques and their potential application for blue and white OLEDs. This article reviews the progress in research on polymeric host materials for phosphorescent OLEDs in recent years. We have synthesized one fluorene-based polymeric host materials PSiF, The resultant copolymer exhibited exceitent thermal stability （thermal decomposition temperature.Td≥400℃）. Employing PSiF doped vith green-emiting Ir（ppy）3. we fabricated polymer light-emitting diodes （32 cd/A, 9. 2%）