中文摘要：

有机电致发光技术在通讯、信息、显示和照明等领域显现出巨大的商业应用前景,十几年来一直是光电信息领域的研究热点之一。相对于无机电致发光材料,有机电致发光材料具有许多优点。近年来,三苯基膦氧基团在合成高性能有机电致发光材料方面的研究吸引了大批研究者的关注。由于磷原子自身性质,可以形成5个共价键,所以膦氧基团极易和其他基团连接形成以其为核的衍生物。由于氧原子具有很强的电负性,这就使膦氧结构高度极化并具有强的吸电子性。吸电子的膦氧基团连接苯环形成的三苯基膦氧单元也具有较强的吸电子性,其对所形成的化合物的能级结构也会产生明显影响。本文从材料合成的角度综述了三苯基膦氧基团在合成高性能有机电致发光材料中的应用方面所取得的最新研究进展,重点介绍了三苯基膦氧基团在合成高性能磷光二极管主体材料、电子传输材料和单分子电致发光材料等方面的应用。最后讨论了三苯基膦氧基团在上述领域应用过程中所存在的问题和功能拓展方向,并对下一步需要研究的热点问题作了展望。

英文摘要：

The organic electroluminescent（EL） technology,which has been the research focus in the field of electro-optical information,holds a wide range of potential applications in domains of communication,information,display,illumination,and so on.Organic EL materials have many advantages when compared with their inorganic counterparts.As a kind of rigid plane triphenyl compound with wide band gap and high flexibility to modify the molecule skeleton,the triphenyl phosphine oxide group with triangular pyramidal configuration has attracted broad attentions.In addition,this group with electron-deficient feature can polarize the molecule framework and promote electron-transporting ability of the obtained materials,which have shown good thermal stability,high triplet energy level values and relatively good device performance.In this regard,the triphenyl phosphine oxide group has been a key bridging chromophore in the synthesis of highly efficient host materials for phosphorescent organic light-emitting diodes,organic charge-transporting materials and single molecular EL lightemitting materials.In this review,the synthetic methods of the materials based on triphenyl phosphine oxide group are introduced.The applications of triphenyl phosphine oxide group-based bridging chromophores in the synthesis of organic EL materials are discussed in detail.Finally,some issues to be addressed and hotspots to be further investigated are also pointed out.