High-performance solid-liquid triboelectric nanogenerator enabled by dual physicochemical modification for wearable sensing

IF 16.8 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy Pub Date : 2025-04-21 DOI:10.1016/j.nanoen.2025.111061

Hao Fan , Zu’an Zeng , Chunyu Deng , Xinyu Chen , Zhixin Di , Wei Lan , Kaitong He , Peiran Lin , Yuli Luo , Wenlong Wang , Yadong Tang

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Abstract

Triboelectric nanogenerators (TENGs) are a promising solution for wearable sensors. Solid-liquid TENGs (SL-TENGs) outperform solid-solid TENGs in contact efficiency and environmental stability but face challenges like lower output power and wettability issues. This study presents a high-performance SL-TENG, termed MC-TENG, by combining a lotus leaf-inspired microstructure with alkalization treatment on solid triboelectric layers and utilizing liquid metal as both the triboelectric layer and electrode. This design enhances surface charge density, roughness, and wettability, achieving a record power density of 33.54 W/m² under small-scale, low-frequency operation. The MC-TENG exhibits high sensitivity (7.1 V/MPa), rapid response times (17 ms and 23 ms), and robust performance across varied conditions. Its versatile applications span Morse code signaling, human motion monitoring, and machine learning-enabled handwriting recognition. This work provides a novel and effective pathway for advancing SL-TENG performance, laying a foundation for its wider adoption in wearable sensing technologies.

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用于可穿戴传感的双物理化学改性高性能固液摩擦电纳米发电机

摩擦电纳米发电机（TENGs）是一种很有前途的可穿戴传感器解决方案。固体-液体teng （sl - teng）在接触效率和环境稳定性方面优于固体-固体teng，但面临输出功率较低和润湿性等问题。本研究提出了一种高性能的SL-TENG，称为MC-TENG，通过将荷叶启发的微观结构与固体摩擦电层的碱化处理相结合，并利用液态金属作为摩擦电层和电极。这种设计提高了表面电荷密度、粗糙度和润湿性，在小规模、低频操作下实现了创纪录的33.54 W/m²的功率密度。MC-TENG具有高灵敏度（7.1 V/MPa），快速响应时间（17 ms和23 ms）以及在各种条件下的稳定性能。它的广泛应用包括莫尔斯电码信号，人体运动监测和机器学习支持的手写识别。这项工作为提高SL-TENG的性能提供了一条新颖有效的途径，为其在可穿戴传感技术中的广泛应用奠定了基础。

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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.