Aniline tetramer-b-polyethylene glycol-b-aniline tetramer (APA), a kind of conjugated triblock copolymer, has attracted attention in the thermoelectric (TE) conversion field owing to its typical n-type property, well-defined molecular structure and excellent dissolvability. Here, APA is used as n-type dopant for tuning the TE properties of the single-walled carbon nanotubes (SWCNTs), and APA/SWCNT TE composites are fabricated by a facile solution mixing method. Scanning electronic microscopy and transmission electron microscope, X-ray photoelectron spectroscopy, X-ray diffraction, Raman spectroscopy, UV–Vis spectroscopy and thermogravimetric analysis are utilized to elucidate the morphology, elemental composition, structure and thermal stability of the composites, respectively. For one thing, APA provides enough negative charge at high temperature to convert the SWCNTs into n-type material, and a maximum Seebeck coefficient of −49.0 ± 0.3 μV/K at 125 °C for APA/SWCNT (40:100) was obtained. For another thing, HCl doping further improves the TE properties of APA/SWCNT, and the highest power factor of 106.3 μW/(m·K²) is obtained at 100 °C for APA/SWCNT (10:100). Therefore, this work provides a facile method using a new dopant APA to fabricate n-type APA/SWCNT composite with enhanced thermoelectric performance.

苯胺四聚体-b-聚乙二醇-b-苯胺四聚体（APA）是一种共轭三嵌段共聚物，由于其典型的n型性质、明确的分子结构和优异的性能，在热电（TE）转换领域引起了人们的关注。溶解性。在这里，APA 用作 n 型掺杂剂来调节单壁碳纳米管 (SWCNT) 的 TE 特性，并且 APA/SWCNT TE 复合材料是通过简便的溶液混合方法制造的。扫描电子显微镜和透射电子显微镜、X 射线光电子能谱、X 射线衍射、拉曼光谱、紫外-可见光谱和热重分析分别用于阐明复合材料的形貌、元素组成、结构和热稳定性。一方面，APA在高温下提供足够的负电荷将SWCNTs转化为n型材料，并且在125°C下APA/SWCNT (40:100)的最大塞贝克系数为-49.0 ± 0.3 μV/K . 另一方面，HCl 掺杂进一步提高了 APA/SWCNT 的热电性能， APA/SWCNT (10:100) 在 100 °C 下获得了 106.3 μW/(m·K ² )的最高功率因数。因此，这项工作提供了一种使用新型掺杂剂 APA 来制造具有增强热电性能的 n 型 APA/SWCNT 复合材料的简便方法。