The use of wearable technologies in various aspects of life, particularly in health and entertainment, is experiencing a remarkable increase. This intensity of usage brings with it the energy needs of these devices. Polymer-based thermoelectric generator solutions are one of the most emphasized issues in energy harvesting applications and stand out as a solution method. In this study, we introduce a high-concentration poly(3,4-ethylenedioxy-thiophene): polystyrene sulfonate (PEDOT: PSS)-based conductive polymer ink, which has been doped with graphene and multi-walled carbon nanotubes (MWCNT) for thermoelectric applications. We also explore the film properties derived from this ink. The fabrication process involves cryogenic freezing, lyophilization, and re-dispersion of a mixture of water and dimethyl sulfoxide (DMSO) with a commercial PEDOT: PSS aqueous solution, followed by the addition of specific additives. These added compounds have led to a significant increase in electrical conductivity, resulting in materials with high electrical conductivity levels ranging from 100 to 200 S/cm. Remarkably, even after subjecting the material to 100 bending cycles, no significant change in electrical conductivity was observed. All the materials produced exhibited p-type semiconductor properties, and the high concentration of PEDOT: PSS, along with the addition of graphene and multi-walled carbon nanotubes, notably enhanced the Seebeck coefficient, reaching a maximum of 25 μV K⁻¹.

可穿戴技术在生活各个方面的使用，特别是在健康和娱乐方面，正在显着增加。这种使用强度带来了这些设备的能源需求。基于聚合物的热电发电机解决方案是能量收集应用中最受重视的问题之一，也是一种脱颖而出的解决方案。在这项研究中，我们介绍了一种高浓度聚（3,4-乙撑二氧基噻吩）：聚苯乙烯磺酸盐（PEDOT：PSS）基导电聚合物墨水，该墨水掺杂有石墨烯和多壁碳纳米管（MWCNT），用于热电应用。我们还探索了这种墨水的薄膜特性。制造过程包括低温冷冻、冻干，以及将水和二甲基亚砜 (DMSO) 的混合物与商用 PEDOT: PSS 水溶液重新分散，然后添加特定添加剂。这些添加的化合物导致电导率显着增加，从而使材料的电导率水平达到 100 至 200 S/cm。值得注意的是，即使使材料经历 100 次弯曲循环后，也没有观察到电导率发生显着变化。所生产的所有材料均表现出p型半导体特性，高浓度的PEDOT: PSS以及石墨烯和多壁碳纳米管的添加，显着提高了塞贝克系数，最高达到25 μV K⁻ ¹。