Tuning the Self‐Assembly of Oligothiophenes on Chemical Vapor Deposition Graphene: Effect of Functional Group,Solvent, and Substrate |
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| Authors: | Xiuling Sun Youbing Mu Jia Zhang Xiaona Wang Prof. Dr. Pingan Hu Prof. Dr. Xiaobo Wan Dr. Zongxia Guo Prof. Dr. Shengbin Lei |
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| Affiliation: | 1. Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education, Harbin Institute of Technology, Harbin, 150080 (P.R. China);2. CAS Key Laboratory of Bio‐based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 (P.R. China) |
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| Abstract: | Tuning and characterizing the interfacial structure of organic semiconductors on graphene is essential for graphene‐based devices. Regulation of the supramolecular assembling structure of oligothiophenes on graphene by changing functional groups attached to the backbone of oligothiophenes is described and the assembling behavior is compared with that on the basal plane of highly oriented pyrolytic graphite. It reveals that terminal functional groups attached to the conjugated backbone of oligothiophene can entirely change the assembling structures. Significant solvent and substrate effects have also been confirmed by comparing the assembling structures of oligothiophenes deposited from tetrahydrofuran, 1,2,4‐trichlorobenzene, and octanoic acid onto graphene and graphite. |
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| Keywords: | graphene oligothiophenes self‐assembly solvent effects substituent effects |
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