Continuous and highly ordered organic semiconductor thin films via dip-coating:the critical role of meniscus angle

作     者：Xuanyu Liu Yu Zhang Xiaotao Zhang Rongjin Li Wenping Hu 刘璇宇;张钰;张小涛;李荣金;胡文平

作者机构：Tianjin Key Laboratory of Molecular Optoelectronic SciencesDepartment of ChemistrySchool of ScienceTianjin University&Collaborative Innovation Center of Chemical Science and EngineeringTianjin 300072China Beijing National Laboratory for Molecular SciencesKey Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Joint School of National University of Singapore and Tianjin UniversityInternational Campus of Tianjin UniversityBinhai New CityFuzhou 350207China 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2020年第63卷第7期

页      面：1257-1264页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：financial support from the National Natural Science Foundation of China(51873148,61674116 and 51633006) the Ministry of Science and Technology of China(2016YFA0202302) the Natural Science Foundation of Tianjin(18JC-YBJC18400) 

主　　题：organic field-effect transistor dip-coating meniscus angle charge transport mobility 

摘      要：Dip-coating is a low-cost,high-throughput technique for the deposition of organic semiconductors over large area on various *** studies have been done and many parameters such as withdrawal speed,solvent type and solution concentration have been ***,most of the depositions were ribbons or dendritic crystals with low coverage of the substrate due to the ignorance of the critical role of dynamic solution-substrate interactions during *** this study,meniscus angle(MA)was proposed to quantify the real-time in-situ solutionsubstrate interactions during *** proper surface treatment of the substrate,the value of MA can be tuned and centimeter-sized,continuous and highly ordered organic semiconductor thin films were *** charge transport properties of the continuous thin films were investigated by the construction of organic field-effect ***(average)hole mobility up to 11.9(5.1)cm2V-1s-1was *** average mobility was 82%higher than that of ribbon crystals,indicating the high crystallinity of the thin *** work reveals the critical role of dynamic solutionsubstrate interactions during *** ability to produce large-area,continuous and highly ordered organic semiconductor thin films by dip-coating could revival the old technique for the application in various optoelectronics.