DataVXAdvanced Materials TechnologiesPaper
journal article·2024-04

Ultrasensitive Flexible Pressure Sensors with Broad Linear Detection Range Enabled by Magnetically Induced Self‐Assembled Parallel Circuit

Zeying Zhang, Jiacheng Qiao, Bin Peng, Guohua Dong, Qi Zhang, Wang Zhan, Li Xue, Cuiling Zhang, Jingen Wu, Niancai Peng, Zhuangde Jiang, Ming Liu, Xiaohui Zhang

Advanced Materials Technologies· Volume 9· Issue 8
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Source abstract

Abstract

Abstract Flexible pressure sensors have attracted intensive interest for promising applications in healthcare monitoring and flexible electronic devices. Nonetheless, designing flexible pressure sensors to achieve both ultrahigh sensitivity (>1000 kPa−1) and an extensive linear range (>50 kPa) poses a significant challenge. In this study, a facile magnetic‐facilitated self‐assembly parallel circuit strategy to prepare high‐performance flexible pressure sensors in Nickel particles/polydimethylsiloxane (Ni/PDMS) matrices is proposed. The optimized magnetic‐induced Ni/PDMS piezoresistive sensor (MANPS) exhibits an ultrahigh sensitivity of 3707 kPa−1 over a wide broad linear range (0–80 kPa), and excellent durability with the capability of withstanding 2000 pressure cycles. The MANPS is able to detect a broad range of pressures from pulse to plantar pressures (≈60 kPa), demonstrating great potential for whole‐body healthcare monitoring. Additionally, the sensor is further assembled into an array configuration (2 × 5 pixels) for the assessment of plantar pressure distribution. Importantly, the sensitivity and linear range of the MANPS can be readily adjusted by modifying the mixing ratio of the curing agent, thereby significantly broadening its potential applications.
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Research context

OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Tactile and Sensory Interactions · Gas Sensing Nanomaterials and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory for Manufacturing Systems Engineering The Key Laboratory of Biomedical Information Engineering of Ministry of Education Center for Mitochondrial Biology and Medicine School of Life Science and Technology International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology Xi'an Key Laboratory for Biomedical Testing and High‐end Equipment Xi'an Jiaotong University Xi'an Shannxi 710049 P. R. China

State Key Laboratory for Manufacturing Systems Engineering Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education Engineering Research Center of Spin Quantum Sensor Chips Universities of Shaanxi Province School of Electronic Science and Engineering Xi'an Jiaotong University Xi'an 710049 P. R. China

State Key Laboratory for Manufacturing Systems Engineering School of Instrument Science and Technology International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology Xi'an Key Laboratory for Biomedical Testing and High‐end Equipment Xi'an Jiaotong University Xi'an 710054 P. R. China

State Key Laboratory for Manufacturing Systems Engineering International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technology Xi'an Jiaotong University Xi'an Shaanxi 7100049 P. R. China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · China Postdoctoral Science Foundation

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