基于ZnO纳米结构的柔性压力传感器沉积在可穿戴滤纸上

IF 3.9 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Jijun Ding*, Pengfei Zhao and Haixia Chen, 
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引用次数: 0

摘要

柔性压力传感器在智能可穿戴设备、医疗保健、人机交互等领域有着广阔的应用前景。然而,柔性压力传感器仍然面临着许多棘手的挑战。如何巧妙地设计并成功地实现具有高传感范围和超高灵敏度的柔性压力传感器已成为一个至关重要的问题。该传感器的设计与实现灵感来源于人体皮肤的分层结构,采用PDMS微结构/MWCNTs作为顶电极,滤纸/ZnO纳米结构/MWCNTs作为中间有源层,Ag交叉指状电极作为底电极,制作了分层结构柔性压力传感器。研究传感器的传感性能,开发压力传感器在日常生活中对人体健康检测的应用,并制备压力传感器阵列,研究空间压力分布的检测。基于纸张和PDMS的传感器可以实现低压检测(30 Pa)、高灵敏度(261.38 kPa-1)、快速响应时间(~ 73.8 ms)和优异的循环稳定性(10,000次循环)。最后,通过点亮一盏小灯来演示传感器的功能,证实了制备的压力传感器具有良好的应用场景,有利于柔性电子器件的发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

ZnO Nanostructure-Based Flexible Pressure Sensors Deposited on Filter Paper for Wearable Application

ZnO Nanostructure-Based Flexible Pressure Sensors Deposited on Filter Paper for Wearable Application

Flexible pressure sensors have broad prospects in smart wearables, healthcare, and human-computer interaction. Nevertheless, flexible pressure sensors still face numerous thorny challenges. It has become a crucial problem to skillfully design and successfully achieve flexible pressure sensors with both a high sensing range and ultrahigh sensitivity. The sensor is designed and realized with inspiration drawn from the layered microstructure of human skin, and hierarchical structure flexible pressure sensors are fabricated, where PDMS microstructures/MWCNTs act as the top electrode, filter paper/ZnO nanostructures/MWCNTs act as the intermediate active layer, and an Ag interdigitated electrode acts as the bottom electrode. The sensing performance of the sensor is investigated to develop the application of pressure sensors for human health detection in daily life, and a pressure sensor array is prepared to investigate the detection of spatial pressure distribution. Sensors based on paper and PDMS can achieve low-pressure detection (30 Pa), high sensitivity (261.38 kPa–1), fast response time (∼73.8 ms), and excellent cyclic stability (10 000 cycles). Finally, the sensor demonstrates its functionality by lighting up a small lamp, which confirms that the as-prepared pressure sensor has excellent application scenarios and is beneficial for the development of flexible electronic devices.

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来源期刊
Langmuir
Langmuir 化学-材料科学:综合
CiteScore
6.50
自引率
10.30%
发文量
1464
审稿时长
2.1 months
期刊介绍: Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).
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