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近年来,由于含硅桥联并环π-共轭体系的独特结构特性以及分子的多样性、可设计性,在光电功能材料的研究中得到越来越多的关注。并环结构赋予体系以刚性共平面结构,使其共轭较非并环结构母体进一步增强,而硅桥的引入则可影响分子的电子结构进而影响材料的光电性能。母体结构及硅桥联方式的选择为分子结构设计和光电性能的改进提供了较大的空间。本文根据母体结构的不同,对硅桥联联苯体系、硅桥联噻吩体系以及硅桥联对二苯乙烯齐聚物体系光电功能材料的研究进展进行了综述。
In recent years, due to the unique structural characteristics of Si-bridged bridged π-conjugated systems as well as the diversity of molecules, designability, more and more attention has been paid to the research of optoelectronic functional materials. The conformation of the ring structure gives the system a rigid coplanar structure, which makes the conjugated structure stronger than the non-concentric ring structure. The introduction of the silicon bridge can affect the electronic structure of the molecule and further affect the photoelectric properties of the material. The choice of the parent structure and the way of silicon bridging provides more space for the molecular structure design and the improvement of the photoelectric properties. In this paper, the progress of the research on silicon-bridged biphenyls, silicon-bridged thiophene systems and silicon-bridged stilbene oligomer functional systems based on the different matrix structures are reviewed.