Conductivity of Electropolymerized Thiophene Films: Effect of Fused-Ring Thiophenes as the Monomer

文献类别：Research Article | 发表期刊：ACS Applied Materials & Interfaces

一、文献基本信息

作者团队： Ganlin Liu, Xiangyu Zhang* (通讯), Bohan Wang, Xinyu Wang, Haichao Liu, Cheng Zhou, Bing Yang, Liang Yao* (通讯), Yuguang Ma

作者单位：
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, Guangdong Basic Research Center of Excellence for Energy and Information Polymer Materials, South China University of Technology, Guangzhou 510640, P.R. China
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P.R. China

通讯作者邮箱：zhnagxy96@scut.edu.cn (Xiangyu Zhang); liangyao@scut.edu.cn (Liang Yao)

发表时间：Online: 21 April 2025 | Published in issue: 30 April 2025

期刊卷期：ACS Applied Materials & Interfaces, 2025, 17, 17, 25562–25570

DOI：10.1021/acsami.5c01664

版权信息：© 2025 American Chemical Society

二、研究摘要

Polythiophene and its derivatives have emerged as promising candidates for next-generation electronic applications due to their tunable conductivity and ease of synthesis via electropolymerization. Although fused-ring thiophene monomers have attracted considerable interest for the fabrication of polythiophene films with enhanced electronic properties, systematic investigations comparing their conductivities and elucidating the structural influence of fused-ring motifs remain limited.

In this study, we explore the electropolymerization behavior of various fused-ring thiophene monomers and systematically evaluate their conductivities through in situ electrochemical conductance measurements. Complemented by theoretical calculations of monomer aromaticity using nucleus-independent chemical shift (NICS) and multicenter bond index (MCBI) analyses, our findings reveal that the inhomogeneous aromaticity of fused thiophene rings plays a pivotal role in determining the conductivity of the resulting polythiophene films.

三、关键词

polythiophenes electropolymerization conductivity measurement in situ electrochemical conductivity conductive polymers

四、支持信息

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包含内容：UV–vis absorption spectra, cyclic voltammograms, SEM images, Raman spectra, GIWAXS, and electropolymerization data

文件信息：am5c01664_si_001.pdf (2.14 MB)

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五、相关链接

原文链接（ACS Publications）：点击访问文献原文（ACS官网）

文献引用格式：Ganlin Liu, Xiangyu Zhang*, Bohan Wang, Xinyu Wang, Haichao Liu, Cheng Zhou, Bing Yang, Liang Yao*, Yuguang Ma. Conductivity of Electropolymerized Thiophene Films: Effect of Fused-Ring Thiophenes as the Monomer. ACS Appl. Mater. Interfaces 2025, 17, 17, 25562–25570. https://doi.org/10.1021/acsami.5c01664

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