优化溶剂性能，有效地n -掺杂高度排列的湿纺碳纳米管纤维用于先进的可穿戴热电

IF 16.8 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy Pub Date : 2025-04-19 DOI:10.1016/j.nanoen.2025.111054

Sung-Jun Kim, Yong Kim, Woong-Ryeol Yu

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引用次数: 0

摘要

随着可穿戴电子产品对高效、灵活、轻便电源的需求不断增长，可穿戴热电发电机（wteg）已成为一种有前途的解决方案。本研究探讨了溶剂性质在提高高排列湿纺碳纳米管（CNT）纤维n型掺杂效率中的作用。研究表明，亲和性较高的溶剂显著改善了掺杂剂对碳纳米管纤维的渗透，使其功率因数达到2.81 mW/mK²，并具有稳定的n型塞贝克系数。此外，一种新的集成策略将这些纤维整合到织物结构热电发电机（FTEG）中，实现了90对/cm²的高P/N对密度。该FTEG的电压和功率密度分别为45.8 V/m²K和39.1 μW/m²K²，代表了下一代电子产品可穿戴电源发展的重大进步。

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Optimizing solvent properties to efficiently N-dope highly aligned wet-spun CNT fibers for advanced wearable thermoelectrics

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Optimizing solvent properties to efficiently N-dope highly aligned wet-spun CNT fibers for advanced wearable thermoelectrics

With the growing demand for efficient, flexible, and lightweight power sources for wearable electronics, wearable thermoelectric generators (WTEGs) have emerged as a promising solution. This study investigates the role of solvent properties in enhancing the N-type doping efficiency of highly aligned wet-spun carbon nanotube (CNT) fibers for use in advanced WTEGs. We demonstrate that solvents with higher affinity significantly improve dopant infiltration into the CNT fibers, leading to a power factor of 2.81 mW/mK² and stable N-type Seebeck coefficient. Furthermore, a novel integration strategy incorporating these fibers into a fabric-structured thermoelectric generator (FTEG) achieves a high P/N pair density of 90 pairs/cm². The resulting FTEG exhibits remarkable voltage and power densities of 45.8 V/m²K and 39.1 μW/m²K², respectively, representing a significant advancement in the development of wearable power sources for next-generation electronics.

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来源期刊

Nano Energy CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

30.30

自引率

7.40%

发文量

1207

审稿时长

23 days

期刊介绍： Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem. Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.