3-Methylcyclohexanone Processed n-Channel Organic Thin-Film Transistors Based on a Conjugated Polymer Synthesized by Direct Arylation Polycondensation  

作　　者：Dong-Sheng Yan Xu-Wen Zhang Zhong-Li Wang Chen-Hui Xu Yi-Bo Shi Yun-Feng Deng Yang Han Yan-Hou Geng 

机构地区：[1]School of Materials Science and Engineering and Tianjin Key Laboratory of Molecular Optoelectronic Science,Tianjin University,and Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin 300072,China [2]State Key Laboratory of Separation Membranes and Membrane Processes,Tianjin Key Laboratory of Advanced Fibers and Energy Storage,School of Material Science and Engineering,Tiangong University,Tianjin 300387,China [3]Joint School of National University of Singapore and Tianjin University,International Campus of Tianjin University,Fuzhou 350207,China

出　　处：《Chinese Journal of Polymer Science》2023年第5期824-831,I0012,共9页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51933008 and 52121002);the Fundamental Research Funds for the Central Universities。

摘　　要：The solubility of a direct arylation polycondensation(DArP)synthesized conjugated polymer,i.e.,poly(3,6-bis(furan-2-yl)-2,5-bis(4-tetradecyloctadecyl)-pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione-alt-1,2-bis(3,4-d ifl uorothien-2-yl)ethene)(PFuD PP-4FTVT),in variou s organic solvents was studied.The polymer is soluble in 3-methylcyclohexanone(3-MC),a green solvent from peppermint oil,besides other solvents such as anisole,cyclopentyl methyl ether(CPME)and o-dichlorobenzene(o-DCB),etc.Based on the Hansen solu bility parameters(HSP)analysis,3-MC is identified as a"marginal solvent"of PFuDPP-4FTVT.The morphology of the spin-coated films with 3-MC as the solvent strongly correlated with the solution preparation conditions.With a 3-MC solution aged for 3 h at 70℃,n-channel organic thin-film transistors(OTFTs)with electron mobility(μe)above 1 cm^(2)·V^(-1)·s^(-1) and current on/off ratio(Ion/Ioff)higher than 105 were fabricated by spin-coating.This is the first report on high mobility conjugated polymers for OTFTs processible with natu rally occurred green solvent.

关 键 词：Conjugated polymers Organic thin-film transistors Electron mobility Green solvent Direct arylation polycondensation 

分 类 号：TQ317[化学工程—高聚物工业] TN321.5[电子电信—物理电子学]