Nanoscale Interlayer Engineering Enhances MXene-Based Flexible Pressure Sensor.

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-07-28 DOI:10.1021/acs.nanolett.5c01464

Yongfa Cheng, Mengjie Wang, Ning Ma, Ruohan Zhang, Zizhen Cai, Mingyang Liu, Zunyu Liu, Shuwen Yan, Jingshu Zhang, Yang Yue, Jianbo Wang, Weijie Liu, Luying Li

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引用次数: 0

Abstract

MXene, an emerging two-dimensional nanomaterial, has attracted considerable interest due to its large surface area, excellent mechanical strength, and superior electrical and chemical properties, making it a strong candidate for high-performance pressure sensors. However, its inherent tendency to self-stack limits the tunability of its interlayer structure, which is critical for resistance-based sensing mechanisms. In this work, we successfully achieved continuous tuning of MXene's interlayer spacing, effectively enhancing the sensitivity and overall performance of the pressure sensor. The optimized sensor exhibited outstanding linear sensitivities of 145.5 kPa^-1 in the low-pressure range (0-18 kPa) and 25.7 kPa^-1 in the medium range (18-50 kPa), along with fast response and recovery times of 68 and 40 ms. Furthermore, it demonstrated excellent durability with stable performance over 10,000 loading/unloading cycles. The sensor was further applied to real-time monitoring of human motions, health signals, and human-machine interactions, highlighting its strong potential in next-generation wearable electronics and smart sensing applications.

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纳米层间工程增强基于mxene的柔性压力传感器。

MXene是一种新兴的二维纳米材料，由于其大的表面积、优异的机械强度、优越的电学和化学性能，使其成为高性能压力传感器的有力候选材料，引起了人们的极大兴趣。然而，其固有的自堆叠倾向限制了其层间结构的可调性，这对于基于电阻的传感机制至关重要。在这项工作中，我们成功地实现了MXene层间间距的连续调谐，有效地提高了压力传感器的灵敏度和整体性能。优化后的传感器在低压范围（0-18 kPa）和中压范围（18-50 kPa）下的线性灵敏度分别为145.5 kPa-1和25.7 kPa-1，响应速度快，恢复时间为68 ms和40 ms。此外，它还具有出色的耐久性，在10,000次加载/卸载循环中表现稳定。该传感器进一步应用于人体运动、健康信号和人机交互的实时监测，突出了其在下一代可穿戴电子产品和智能传感应用中的强大潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.