Recent developed conducting polymer based hybrid thermoelectric (TE) materials provide a promising alternative route for energy conversion on a large scale. However, high thermopower largely relies on high content of low‐abundance elements, such as tellurium, which impedes the mass production of these materials. To optimize the compositions of the hybrids and further improve the TE properties, interfacial engineering is therefore employed to modulate the carrier transport properties in rationally designed multiwalled carbon nanotubes (MWCNTs)‐Te nanorod/polyaniline (PANI) ternary hybrid nanomaterials considering the similar π–π conjugated interactions among these constituents. The effects of MWCNTs and Te nanorods, especially the multiple interfaces formed between the constituents, on the TE performances and carrier transport behavior are studied in depth. Due to simultaneous increase in both electrical conductivity and thermopower, an optimal power factor of 54.4 µW m⁻¹ K⁻² is obtained in 52%Te‐16% MWCNT/PANI film, which is almost twice the value of binary Te/PANI film at the same Te content and comparable to that of 60% Te/PANI film. Moreover, the ternary hybrid film shows good mechanical stability. This study demonstrates an effective strategy to improve TE performances of conducting polymer based hybrids and has great potential for cost‐effective flexible energy conversion devices.

中文翻译：

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聚苯胺基三元杂化纳米材料中由多个界面实现的电导率和热功率的单独调节，可实现高热电性能

最近开发的基于导电聚合物的混合热电（TE）材料为大规模的能量转换提供了一种有希望的替代途径。但是，高热电很大程度上依赖于高含量的低含量元素（例如碲），这阻碍了这些材料的大规模生产。为了优化杂化体的成分并进一步改善TE性能，因此采用界面工程来调节载流子传输性能，该设计是在合理设计的多壁碳纳米管（MWCNT）-Te纳米棒/聚苯胺（PANI）三元杂化纳米材料中考虑的，类似π–这些成分之间存在π共轭相互作用。MWCNT和Te纳米棒的影响，尤其是成分之间形成的多个界面，对TE的性能和载流子传输行为进行了深入研究。由于同时提高了电导率和热功率，最佳功率因数为54.4 µW m在52％Te-16％MWCNT / PANI膜中获得^-1 K ^-2，这几乎是相同Te含量下二元Te / PANI膜的值的两倍，并且与60％Te / PANI膜的值相当。而且，三元杂化膜显示出良好的机械稳定性。这项研究证明了一种改善导电聚合物基混合动力汽车TE性能的有效策略，并且对于具有成本效益的柔性能量转换装置具有巨大的潜力。