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Flexible PANI/SWCNT thermoelectric films with ultrahigh electrical conductivity

机译：具有超高电导率的柔性PANI / SWCNT热电薄膜

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摘要

The effects of polyaniline (PANI) with different polymerization times on the film-forming and thermoelectric properties as well as on the performance of SWCNTs/PANI composites were systematically investigated in this study. It was found that the film-forming and flexibility of PANI films improved with the increase in polymerization time. We showed that a super high conductivity of similar to 4000 S cm(-1) can be achieved for the SWCNTs/PANI composite film, which is the highest value for the SWCNTs/PANI system at present. Both the electrical conductivity and power factor increase by an order of magnitude than that of pure PANI films and far exceed the theoretical value of the mixture model. These results suggest that the sufficiently continuous and ordered regions on the interlayer between the filler and matrix are key to improve the electrical conductivity of composites. Finally, the maximum PF reaches 100 mu W m(-1) K-2 at 410 K for the 0.6CNT/PANI5h. Furthermore, it is found that the composite films have excellent environmental and structural stability. Our results can deepen the understanding of organic-inorganic thermoelectric composite systems and facilitate the practical application of flexible and wearable thermoelectric materials.
机译：本研究系统地研究了聚苯胺与不同聚合时间对成膜和热电性能以及SWCNTS / PANI复合材料的性能的影响。发现PANI膜的成膜和柔韧性随着聚合时间的增加而改善。我们表明，对于SWCNT / PANI复合膜，可以实现类似于4000秒（-1）的超高导电率，这是目前SWCNTS / PANI系统的最高值。电导率和功率因数均比纯PANI薄膜的电导率增加到大量，并且远远超过混合模型的理论值。这些结果表明，填充物和基质之间的中间层上的足够连续和有序区域是改善复合材料的电导率的关键。最后，在0.6cnt / pani5h的410k下，最大pf达到100μm（-1）k-2。此外，发现复合膜具有优异的环境和结构稳定性。我们的结果可以深化对有机无机热电复合系统的理解，便于柔性耐磨热电材料的实际应用。

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  • 来源
    《RSC Advances》 |2018年第46期|共9页
  • 作者

    Wu Ruili; Yuan Haocheng; Liu Chan; Lan Jin-Le; Yang Xiaoping; Lin Yuan-Hua;

  • 作者单位

    Beijing Univ Chem Technol State Key Lab Organ Inorgan Composites Beijing 100029 Peoples R China;

    Beijing Univ Chem Technol State Key Lab Organ Inorgan Composites Beijing 100029 Peoples R China;

    Tsinghua Univ Sch Mat Sci &

    Engn State Key Lab New Ceram &

    Fine Proc Beijing 100084 Peoples R China;

    Beijing Univ Chem Technol State Key Lab Organ Inorgan Composites Beijing 100029 Peoples R China;

    Beijing Univ Chem Technol State Key Lab Organ Inorgan Composites Beijing 100029 Peoples R China;

    Tsinghua Univ Sch Mat Sci &

    Engn State Key Lab New Ceram &

    Fine Proc Beijing 100084 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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