附生结晶调控有机高分子半导体材料聚集态结构与性能  

Structure and Property Regulation of Polymer Semiconductors via Epitaxial Crystallization

作　　者：闫敬越 刘玉敏 黄华东[2] 高灿 董焕丽[1,3] 李忠明 Jing-yue Yan;Yu-min Liu;Hua-dong Huang;Can Gao;Huan-li Dong;Zhong-ming Li(National Laboratory for Molecular Sciences,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190;College of Polymer Science&Engineering,Sichuan University,Sichuan 610065;University of Chinese Academy of Sciences,Beijing 100049)

机构地区：[1]中国科学院化学研究所北京分子科学国家重点实验室,北京100190 [2]四川大学高分子科学与工程学院,四川610065 [3]中国科学院大学,北京100049

出　　处：《高分子学报》2024年第11期1441-1462,共22页Acta Polymerica Sinica

基　　金：中国科学院稳定支持基础研究领域青年团队计划(项目号YSBR-053);国家自然科学基金(基金号52233010,22021002).

摘　　要：高质量共轭高分子半导体晶体材料的制备对于其基础物性的研究和高性能有机光电器件的构筑具有至关重要的意义.但是高分子材料存在本征分子量大、呈分散性、链间易于缠结等特征,导致其高度有序共轭高分子聚集体的制备面临巨大挑战.本文立足于有机高分子半导体材料聚集态结构与性能调控,在传统溶液组装策略的基础上,介绍了新型取向结晶策略,重点探讨了附生结晶的影响因素以及附生结晶在调控有机高分子半导体材料聚集态结构与性能方面的优势,并对目前附生结晶存在的问题进行了总结与展望.The field of organic electronics has made significant progress after more than 40 years of research,giving rise to a series of emerging related areas.Due to limitations such as limited conjugated size of small molecules and high degree of disorders in conjugated polymers,research in this field is currently facing performance limits and its development is distinctly hindered.The preparation of high-quality semiconductor crystals of conjugated polymers is of great significance for the study of their basic physical properties and the construction of organic optoelectronic devices with the high performance.However,due to the inherent characteristics such as high molecular weight,dispersibility,and easy entanglement between chains,the acquisition of highly ordered aggregates for conjugated polymers faces enormous challenges.Study on the crystallization of conjugated polymers is definitely important for preparing their high-quality crystals in order to overcome the current performance limitations in organic electronics,and would be expected to provide an important research platform for basic physical properties of conjugated polymers.Epitaxial crystallization is a surface-induced crystallization method.The existence of oriented substrate can reduce the nucleation barrier of crystallization processes and make the crystallization processes more easily to occur in comparison to the traditional solution crystallization.Therefore,epitaxial crystallization has become a common method for regulating the aggregation structure and properties of organic polymer semiconductor materials.In this contribution,we first briefly introduced the regulation of the aggregate structures of organic polymer semiconductor materials through traditional solution assembly and new oriented crystallization strategies.The factors of epitaxial crystallization and their advantages on regulating the aggregate structures and properties of organic polymer semiconductor materials were then particularly summarized.Future study on epitaxial crystallization i

关 键 词：有机高分子半导体 构效关系 结构调控 附生结晶 

分 类 号：TN304.52[电子电信—物理电子学] TQ317[化学工程—高聚物工业]