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共轭聚合物是由大量重复基元通过化学键连接的一维体系,具有独特的光、电、电化学等性质,已经引起学术界的广泛关注.由于共轭聚合物结构(链段、构象、聚集态)的复杂性,即使在非常精细的合成条件下,少量结构缺陷的形成也是难免的.共轭聚合物,特别在其固态状态下激发能量能够有效传递,使得少量缺陷的影响被放大,对其光电性质产生巨大影响.因此对共轭聚合物结构缺陷的研究,包括缺陷成因与控制、缺陷密度的分析、缺陷的分子结构与电子结构特征等,对于高品质材料的研发具有重要的意义.本文对国内外研究进展进行了比较详尽的介绍.
Conjugated polymers are one-dimensional systems that are connected by a large number of repeating motifs through chemical bonds and have unique properties such as light, electricity, and electrochemistry. Conjugated polymers have drawn wide attention in the academic field due to the conjugated polymer structure (segment, conformation, Aggregation state), the formation of a small number of structural defects is inevitable even under very fine synthetic conditions Conjugated polymers, particularly in their solid state, can efficiently transfer excitation energy so that the effects of small amounts of defects are amplified, Which has a great influence on the optoelectronic properties.Therefore, the research on the structural defects of conjugated polymers, including the cause and control of defects, the analysis of defect density, the molecular structural and electronic structural characteristics of defects, is of great significance for the research and development of high quality materials This article gives a more detailed introduction of the research progress at home and abroad.