Flexible Strain Sensor Based on AgNWs/MXene/SEBS with High Sensitivity and Wide Strain Range

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Electronic Materials Letters Pub Date : 2024-08-10 DOI:10.1007/s13391-024-00514-y

Yubo Yao, Hongfei Dai, Mengnan Ji, Ying Han, Bo Jiang, Chi Cheng, Xiaolei Song, Ying Song, Guangfeng Wu

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Abstract

Flexible strain sensors that combine high sensitivity and wide range are important for developing wearable electronics. In this paper, AgNWs/MXene/SEBS flexible strain sensor with high sensitivity and wide strain range was prepared using a thermoplastic elastomer (styrene-ethylene-butene-styrene) SEBS as the polymer matrix and AgNWs and MXene as the composite conductive fillers. The sensitivity of the AgNWs/MXene/SEBS sensor is significantly higher than that of the AgNWs/SEBS and MXene/SEBS sensors based on a single conductive filler. At 100% strain, the AgNWs/MXene/SEBS sensor has a sensitivity of 176.25. The sensor detects small strains of 0.5-5% as well as large strains of 5–50% with high linearity. The sensors remained stable after 200 cycles. The AgNWs/MXene/SEBS tensile sensors were subjected to array testing and finger bending recognition, and the sensors have promising applications in human motion monitoring.

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基于 AgNWs/MXene/SEBS 的柔性应变传感器具有高灵敏度和宽应变范围

兼具高灵敏度和宽应变范围的柔性应变传感器对于开发可穿戴电子产品非常重要。本文以热塑性弹性体（苯乙烯-乙烯-丁烯-苯乙烯）SEBS 为聚合物基体，以 AgNWs 和 MXene 为复合导电填料，制备了具有高灵敏度和宽应变范围的 AgNWs/MXene/SEBS 柔性应变传感器。AgNWs/MXene/SEBS 传感器的灵敏度明显高于基于单一导电填料的 AgNWs/SEBS 和 MXene/SEBS 传感器。在应变为 100% 时，AgNWs/MXene/SEBS 传感器的灵敏度为 176.25。该传感器能检测到 0.5-5% 的小应变和 5-50% 的大应变，线性度很高。传感器在 200 次循环后仍保持稳定。对 AgNWs/MXene/SEBS 拉伸传感器进行了阵列测试和手指弯曲识别，该传感器在人体运动监测方面具有广阔的应用前景。图文摘要

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来源期刊

Electronic Materials Letters 工程技术-材料科学：综合

CiteScore

4.70

自引率

20.80%

发文量

审稿时长

2.3 months

期刊介绍： Electronic Materials Letters is an official journal of the Korean Institute of Metals and Materials. It is a peer-reviewed international journal publishing print and online version. It covers all disciplines of research and technology in electronic materials. Emphasis is placed on science, engineering and applications of advanced materials, including electronic, magnetic, optical, organic, electrochemical, mechanical, and nanoscale materials. The aspects of synthesis and processing include thin films, nanostructures, self assembly, and bulk, all related to thermodynamics, kinetics and/or modeling.