Communication
Open Access

A Facile Approach to Improve Interchain Packing Order and Charge Mobilities by Self‐Assembly of Conjugated Polymers on Water

Yizhou Yang

Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Zitong Liu

Corresponding Author

E-mail address: [email protected]

Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

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Jianmei Chen

Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Soochow University, Suzhou, 215123 China

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Zhengxu Cai

Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Material Science & Engineering, Beijing Institute of Technology, Beijing, 100081 China

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Zhijie Wang

Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Wei Chen

Institute for Molecular Engineering and Materials Science Division, Argonne National Laboratory, 9700 Cass Avenue, Lemont, IL, 60439 USA

Institute for Molecular Engineering, The University of Chicago, 5640 South Ellis Avenue, Chicago, IL, 60637 USA

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Guanxin Zhang

Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

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Xisha Zhang

Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Lifeng Chi

Corresponding Author

E-mail address: [email protected]

Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon‐Based Functional Materials and Devices, Soochow University, Suzhou, 215123 China

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Deqing Zhang

Corresponding Author

E-mail address: [email protected]

Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 P. R. China

School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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[email protected]

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[email protected]

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First published: 09 October 2018

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Citations: 5

Abstract

Development of facile and economic approaches for assembling organic semiconductors into more ordered structures toward high charge mobilities is highly demanding for the fabrication of organic circuits. Here a simple and facile approach is reported to prepare conjugated polymer thin films with improved crystallinities and charge mobilities by self‐assembling semiconducting polymers on water. The formation of polymer thin films with more ordered structures is attributed to coffee ring effect induced by solvent‐evaporation on water, and the hydrophobic nature of conjugated polymers that forces the polymer chains to pack densely and orderly on water surface. This approach is applicable to typical semiconducting polymers, and charge mobilities of their thin films are boosted remarkably. Finally, this new method can be utilized to easily fabricate the array of field‐effect transistors with high charge mobilities in an economic way.

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