佩多:嘘
材料科学
塞贝克系数
乙二醇
热电效应
化学工程
聚合
离子液体
溶剂
高分子化学
聚(3,4-亚乙基二氧噻吩)
相(物质)
导电聚合物
聚合物
有机化学
复合材料
化学
热导率
催化作用
工程类
物理
热力学
作者
Yimin Jia,Xuejing Li,Fengxing Jiang,Changcun Li,Tongzhou Wang,Qinglin Jiang,Jian Hou,Jingkun Xu
摘要
ABSTRACT Vapor‐phase polymerization (VPP) is an important method for the fabrication of high‐quality conducting polymers, especially poly(3,4‐ethylenedioxythiophene) (PEDOT). In this work, the effects of additives and post‐treatment solvents on the thermoelectric (TE) performance of VPP‐PEDOT films were systematically investigated. The use of 1‐butyl‐3‐menthylinidazolium tetrafluoroborate ([BMIm][BF 4 ], an ionic liquid) was shown to significantly enhance the electrical conductivity of VPP‐PEDOT films compared with other additives. The VPP‐PEDOT film post‐treated with mixed ethylene glycol (EG)/[BMIm][BF 4 ] solvent displayed the high power factor of 45.3 μW m −1 K −2 which is 122% higher than that prepared without any additive or post‐treatment solvent, along with enhanced electrical conductivity and Seebeck coefficient. This work highlighted the superior effect of the [BMIm][BF 4 ] additive and the EG/[BMIm][BF 4 ] solvent post‐treatment on the TE performance of the VPP‐PEDOT film. These results should help with developing the VPP method to fabricate high‐performance PEDOT films. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2017 , 55 , 1738–1744
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