High-Performance and Long-Term Stability of MXene/PEDOT:PSS-Decorated Cotton Yarn for Wearable Electronics Applications

IF 17.2 1区工程技术 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Advanced Fiber Materials Pub Date : 2023-12-20 DOI:10.1007/s42765-023-00348-7

Guifang He, Fanggang Ning, Xiang Liu, Yaxin Meng, Zhiwei Lei, Xianda Ma, Mingwei Tian, Xuqing Liu, Xiansheng Zhang, Xueji Zhang, Lijun Qu

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Abstract

High-performance wearable electronics are highly desirable for the development of body warming and human health monitoring devices. In the present study, high electrically conductive and photothermal cotton yarns (CYs) with long-term stability were prepared as wearable electronics. The process contains back-to-back decoration of the fiber surface by Ti₃C₂T_x (MXene) nanosheets, and the poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT: PSS) composite, to form a core–shell structure (MP@CY). The addition of a small amount of PEDOT: PSS plays a dual role of protecting the MXene from oxidation and increasing the electrical conductivity. The resulting yarn exhibits excellent electrical conductivity (21.8 Ω cm⁻¹), rapid electrothermal response, and superb photothermal conversion capability, supporting its application as an optical/electrical dual-drive heater. A three-dimensional (3D) honeycomb-like textile wearable heater based on MP@CY as weft yarn demonstrates outstanding electrical thermal properties (0–2.5 V, 30–196.8 °C) and exceptional photothermal conversion (130 mW cm⁻², 64.2 °C). Using an Internet of Things (IoT) microcontroller and Espressif (ESP) electronics chip, which are combined with wireless fidelity (Wi-Fi) and smartphone, real-time visualization and precise control of the temperature interface can be achieved. Furthermore, MP@CY-based knitted sensors, obtained by hand-knitting, are utilized for monitoring human movement and health, exhibiting high sensitivity and long-term cycling stability.

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用于可穿戴电子产品应用的 MXene/PEDOT:PSS 装饰棉纱的高性能和长期稳定性

高性能的可穿戴电子设备是开发人体保暖和人体健康监测设备的理想之选。本研究制备了具有长期稳定性的高导电性和光热性棉纱（CYs）作为可穿戴电子设备。制备过程包括用 Ti3C2Tx（MXene）纳米片背靠背装饰纤维表面，以及聚（3,4-乙烯二氧噻吩）聚苯乙烯磺酸盐（PEDOT：PSS）复合材料，形成核壳结构（MP@CY）。加入少量 PEDOT：PSS 具有保护 MXene 免受氧化和提高导电性的双重作用。由此制成的纱线具有出色的导电性（21.8 Ω cm-1）、快速的电热响应和超强的光热转换能力，可用作光电双驱动加热器。以 MP@CY 为纬纱的三维（3D）蜂窝状纺织可穿戴加热器具有出色的电热性能（0-2.5 V，30-196.8 °C）和卓越的光热转换能力（130 mW cm-2，64.2 °C）。利用物联网（IoT）微控制器和 Espressif（ESP）电子芯片，结合无线保真（Wi-Fi）和智能手机，可以实现温度界面的实时可视化和精确控制。此外，通过手工编织获得的基于 MP@CY 的针织传感器可用于监测人体运动和健康状况，具有高灵敏度和长期循环稳定性。

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来源期刊

Advanced Fiber Materials Multiple-

CiteScore

18.70

自引率

11.20%

发文量

109

期刊介绍： Advanced Fiber Materials is a hybrid, peer-reviewed, international and interdisciplinary research journal which aims to publish the most important papers in fibers and fiber-related devices as well as their applications.Indexed by SCIE, EI, Scopus et al. Publishing on fiber or fiber-related materials, technology, engineering and application.