Improved Flexible Triboelectric Nanogenerator Based on Tile-Nanostructure for Wireless Human Health Monitor,Energy & Environmental Materials

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Improved Flexible Triboelectric Nanogenerator Based on Tile-Nanostructure for Wireless Human Health Monitor
Energy & Environmental Materials ( IF 13.0 ) Pub Date : 2023-07-04 , DOI: 10.1002/eem2.12654
Huamin Chen _{1,

2} , Shujun Guo ₁ , Shaochun Zhang _{3,

4} , Yu Xiao _{3,

4} , Wei Yang ₁ , Zhaoyang Sun ₁ , Xu Cai ₁ , Run Fang ₁ , Huining Wang ₅ , Yun Xu _{3,

4} , Jun Wang ₁ , Zhou Li ₂

Affiliation

Triboelectric nanogenerators (TENGs) have emerged as promising candidates for integrating with flexible electronics as self-powered systems owing to their intrinsic flexibility, biocompatibility, and miniaturization. In this study, an improved flexible TENG with a tile-nanostructured MXene/polymethyl methacrylate (PMMA) composite electrode (MP-TENG) is proposed for use in wireless human health monitor. The multifunctional tile-nanostructured MXene/PMMA film, which is self-assembled through vacuum filtration, exhibits good conductivity, excellent charge capacity, and high flexibility. Thus, the MXene/PMMA composite electrode can simultaneously function as a charge-generating, charge-trapping, and charge-collecting layer. Furthermore, the charge-trapping capacity of a tile nanostructure can be optimized on the basis of the PMMA concentration. At a mass fraction of 4% PMMA, the MP-TENG achieves the optimal output performance, with an output voltage of 37.8 V, an output current of 1.8 μA, and transferred charge of 14.1 nC. The output power is enhanced over twofold compared with the pure MXene-based TENG. Moreover, the MP-TENG has sufficient power capacity and durability to power small electronic devices. Finally, a wireless human motion monitor based on the MP-TENG is utilized to detect physiological signals in various kinematic motions. Consequently, the proposed performance-enhanced MP-TENG proves a considerable potential for use in health monitoring, telemedicine, and self-powered systems.

中文翻译：

基于瓦片纳米结构的改进柔性摩擦纳米发电机用于无线人体健康监测器

摩擦纳米发电机（TENG）由于其固有的灵活性、生物相容性和小型化，已成为与柔性电子设备集成作为自供电系统的有前途的候选者。在这项研究中，提出了一种改进的带有瓦片纳米结构 MXene/聚甲基丙烯酸甲酯 (PMMA) 复合电极 (MP-TENG) 的柔性 TENG，用于无线人体健康监测器。通过真空过滤自组装的多功能瓦片纳米结构MXene/PMMA薄膜具有良好的导电性、优异的电荷容量和高柔韧性。因此，MXene/PMMA复合电极可以同时充当电荷产生层、电荷捕获层和电荷收集层。此外，瓦片纳米结构的电荷捕获能力可以根据PMMA浓度进行优化。在PMMA质量分数为4%时，MP-TENG实现了最佳输出性能，输出电压为37.8 V，输出电流为1.8 μA，传输电荷为14.1 nC。与纯基于 MXene 的 TENG 相比，输出功率提高了一倍多。此外，MP-TENG具有足够的功率容量和耐用性，可以为小型电子设备供电。最后，利用基于MP-TENG的无线人体运动监测器来检测各种运动中的生理信号。因此，所提出的性能增强型 MP-TENG 证明在健康监测、远程医疗和自供电系统方面具有巨大的应用潜力。

更新日期：2023-07-04

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