Aligned triboelectric all-nanofiber generator as self-powered sensors for message cryptography

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2025-07-19 DOI:10.1016/j.compositesb.2025.112835

Fujun Han , Tianyu Wang , Ying Chen , Xiuyan Ren , Zhihao Peng , Xulong Zheng , Kairui Wang , Yiyan Gao , Ya Cheng , Guanghui Gao

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Abstract

As a self-powered device, triboelectric fiber-generators (TEFGs) have garnered considerable attention over the past decade, overcoming the limitations of conventional power sources. Significantly, while both structures function, the aligned nanofiber film demonstrably outperforms the random nanofiber film in triboelectric output performance. Hence, a triboelectric all-nanofiber generator with an aligned structure is investigated, consisting of the co-electrospun polyacrylonitrile (PAN)/thermoplastic polyurethane (TPU) nanofiber positive triboelectric layer and polyvinylidene fluoride (PVDF)/polydimethylsiloxane (PDMS) nanofiber negative triboelectric layer. After the optimization of structure, triboelectric fiber-generators with aligned (A-TEFG) exhibited peak-to-peak voltage, current output, and transient power density values of 55 V, 0.8 μA, and 33.6 mW/m², respectively, which could efficiently harvest mechanical energy to power light-emitting diodes (LEDs). Furthermore, A-TEFG was used as self-powered sensors for human movement monitoring and transmitting encrypted information followed Morse code principles. Based on the simple and scalable fabrication methods, A-TEFG makes a promising candidate to developing practical, flexible, and self-powered wearable electronic devices.

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作为自供电信息加密传感器的排列摩擦电全纳米纤维发生器

作为一种自供电装置，摩擦纤维发电机（tefg）克服了传统电源的局限性，在过去的十年中获得了相当大的关注。值得注意的是，当两种结构都发挥作用时，排列纳米纤维薄膜在摩擦电输出性能上明显优于随机纳米纤维薄膜。为此，研究了一种由共静电纺聚丙烯腈(PAN)/热塑性聚氨酯（TPU）纳米纤维正摩擦电层和聚偏氟乙烯(PVDF)/聚二甲基硅氧烷（PDMS）纳米纤维负摩擦电层组成的定向结构的全纳米纤维摩擦电发生器。经过结构优化后，排列摩擦光纤发生器（A-TEFG）的峰值电压、输出电流和瞬态功率密度分别为55 V、0.8 μA和33.6 mW/m2，能够有效地收集机械能量，为发光二极管（led）供电。此外，A-TEFG作为自供电传感器用于人体运动监测，并按照摩尔斯电码原理传输加密信息。基于简单和可扩展的制造方法，a - tefg是开发实用、灵活和自供电的可穿戴电子设备的有希望的候选者。

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来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.