Wrinkle-structured MXene film assists flexible pressure sensors with superhigh sensitivity and ultrawide detection range

IF 4.2 3区材料科学 Q2 MATERIALS SCIENCE, COMPOSITES Nanocomposites Pub Date : 2022-03-16 DOI:10.1080/20550324.2022.2054211

Yuhuan Lv, Lizhen Min, Fengxiao Niu, Xiangyang Chen, Biao Zhao, Yong Chang Liu, Kai Pan

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引用次数: 6

Abstract

Abstract With the rapid development of artificial intelligence and ever-increasing demand for electronic devices, constructing high-performance flexible pressure sensors is urgently needed. In this study, a novel flexible pressure sensor with superhigh sensitivity and ultrawide detection range is tactfully designed and prepared based on wrinkle-structured MXene film. Due to the unique wrinkle structure, the prepared pressure sensor exhibits outstanding performance including high sensitivity of nearly 860 kPa−1, wide detection range (0.5 Pa ‒ 30 kPa), short response/recover time (40/53 ms) and high stability (11600 cycles). A multi-scale working mechanism is proposed to explain the sensing process. Interestingly, the prepared sensor can easily detect the smallest movement of a millet (2.4 mg) in real time. Based on these advantages, the prepared pressure sensor is expected to show significant potentials in future physiological detection and precision instrument monitoring systems. Graphical Abstract

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褶皱结构的MXene薄膜有助于柔性压力传感器具有超高灵敏度和超宽检测范围

随着人工智能的快速发展和对电子器件需求的不断增加，迫切需要构建高性能柔性压力传感器。本研究巧妙地设计并制备了一种基于MXene薄膜的超高灵敏度、超宽检测范围的柔性压力传感器。由于独特的皱纹结构，所制备的压力传感器具有近860 kPa−1的高灵敏度、宽检测范围(0.5 Pa - 30 kPa)、短响应/恢复时间(40/53 ms)和高稳定性(11600次循环)等优异性能。提出了一种多尺度的工作机制来解释感知过程。有趣的是，所制备的传感器可以轻松地实时检测小米(2.4毫克)的最小运动。基于这些优点，所制备的压力传感器有望在未来的生理检测和精密仪器监测系统中显示出巨大的潜力。图形抽象

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