Preparation of PEDOT/PEDOT∶PSS-based Flexible Nanofiber Film and Its Thermoelectric Properties by Electrochemical Deposition
JIN Shengnan, SUN Tingting, WANG Minghui, JIANG Wan
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
Abstract: The preparation of flexible thermoelectric films by electrospinning is a very feasible method. The nanofibers are arranged randomly under electric field and form a porous structure, which not only increase the deformability, flexibility and ductility of nanofiber film, but also increase the content of non-flowing air with low thermal conductivity in nanofibers and this is conducive to reducing the thermal conductivity of the film. Howe-ver, there are few studies currently on the application of electrospinning in the field of flexible thermoelectric materials. In this paper, poly(3,4-ethylenedioxythiophene)∶poly(styrenesulfonate)-based (PEDOT∶PSS-based) nanofiber film with good self-supporting and flexibility was prepared by electrospinning. Then through electrochemical polymerization, PEDOT/PEDOT: PSS based thermoelectric nanofiber film was obtained. It was found that the polymer potential and monomer concentration had great influences on the conductivity of thermoelectric nanofiber film. At the polymerization potential of 1.5 V and monomer concentration of 0.03 mol/L, the conductivity and Seebeck coefficient were 9.582 S·cm-1 and 26.7 μV·K-1 respectively. The optimal PF value was 0.68 μW·m-1·K-2.
金胜男, 孙婷婷, 王明辉, 江莞. 电化学沉积法制备PEDOT/PEDOT∶PSS基柔性纳米纤维膜及其热电性能[J]. 材料导报, 2020, 34(8): 8184-8187.
JIN Shengnan, SUN Tingting, WANG Minghui, JIANG Wan. Preparation of PEDOT/PEDOT∶PSS-based Flexible Nanofiber Film and Its Thermoelectric Properties by Electrochemical Deposition. Materials Reports, 2020, 34(8): 8184-8187.
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