材料科学
压力传感器
可穿戴计算机
纳米传感器
压阻效应
信号(编程语言)
纳米技术
光电子学
计算机科学
机械工程
工程类
嵌入式系统
程序设计语言
作者
Youwei Zhao,Xiang Li,Yuan Tian,Shuhong Huang,Ronghui Jiang,Xuefei Duan,Ling Li,Xiaoting Li,Wenming Zhang
出处
期刊:Lab on a Chip
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:22 (23): 4593-4602
被引量:8
摘要
Simulation of somatosensory systems in human skin with electronic devices has broad applications in the development of intelligent robots and wearable electronic devices. Here, we give an account of a new biomimetic flexible dual-mode pressure sensor, which is based on the first developed sea dandelion-like conductive metal-organic framework (cZIF-67@Cu-CAT) and the self-synthesized mechanically luminescent zinc sulfide nanoparticles and cleverly combines the microdome structure of the lotus leaf. According to finite element simulation analysis (FEA), the deformation behavior and pressure distribution of the contact interface with dandelion-like nanostructures cause the contact area of the sensor to increase rapidly and steadily with the load. It is for this reason that the piezoresistive pressure sensor has a high sensitivity of 71.74 kPa-1 over a wide range of 0.5 to 80 kPa. More importantly, it can roughly perceive stress changes in the external environment through mechanoluminescence materials without a power supply. The ultra-thin flexible pressure sensor is suitable for sensitive monitoring of small vibrations, including wrist pulse and joint motion. Combined with Bluetooth data transmission, it is not difficult to see that the high-sensitivity ultra-thin sensor designed in this study has broad potential in the applications of bio-wearable electronics and will play an immeasurable role in various sports training and joint protection in the future.
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