Abstract As a promising candidate for renewable-energy, organic thermoelectric (TE) materials have received tremendous research interests because of their ability to satisfy the urgent demands of mitigating the energy crisis. Polypyrrole (PPy), as one of the most significant organic conducting polymers, is applied widely in actuators, solid electrolytic capacitors, and so on. PPy was synthesized as free-standing films by electrodeposition in the mixed electrolyte system of boron fluoride diethyl etherate (BFEE) and isopropyl alcohol (IPA) with different volume ratios and then systematic studied PPy films TE performance. Be regarded as an effective strategy, electrochemical treatment was selected in this study to further improve the TE performance of PPy film. Finally, the electrical conductivity increased approximately three-fold, the Seebeck coefficient increased nearly twice, the power factor enhanced by about six times. Therefore, this work will provide an important reference for optimizing the thermoelectric properties of conducting polymer through electrochemical treatment.

中文翻译：

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具有增强热电性能的柔性聚吡咯薄膜的电化学掺杂调谐

摘要 作为可再生能源的一种有前途的候选材料，有机热电（TE）材料因其能够满足缓解能源危机的紧迫需求而受到了极大的研究兴趣。聚吡咯（PPy）作为最重要的有机导电聚合物之一，广泛应用于执行器、固体电解电容器等领域。在不同体积比的氟化硼乙醚化物（BFEE）和异丙醇（IPA）的混合电解质体系中，通过电沉积将PPy合成为自支撑薄膜，然后系统研究了PPy薄膜的TE性能。作为一种有效的策略，本研究选择电化学处理以进一步提高 PPy 薄膜的 TE 性能。最后，电导率增加了大约三倍，塞贝克系数增加近两倍，功率因数提高约六倍。因此，该工作将为通过电化学处理优化导电聚合物的热电性能提供重要参考。