Highly sensitive and wearable capacitive pressure sensors based on PVDF/BaTiO3 composite fibers on PDMS microcylindrical structures

Chii Rong Yang, Ming Feng Lin, Chun Kai Huang, Wei Chia Huang, Shih Feng Tseng*, Hsin Han Chiang

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

2 引文 斯高帕斯(Scopus)

摘要

This study developed a novel high-sensitivity flexible capacitive pressure sensor by combining BaTiO3-doped polyvinylidene fluoride electrospinning fibers and polydimethylsiloxane microcylindrical structures as the dielectric layer. The flexible electrode formed by the graphene/PI film was assembled into a flexible capacitive pressure sensor, and formed a sandwich-like structure. The proposed sensor could obtain more capacitance variations and improve its sensitivity through composite deformation of electrospinning fiber and microcylindrical structure under pressure. The developed flexible capacitive pressure sensor has a high sensitivity of 5 kPa−1, fast response and release time of 25 and 50 ms, ultralow detection limit of 0.11 Pa, and more than 10000- and 5000-times compressions/bending cycling test without any signal attenuation for the high durability and high reliability. The results of this study proved that the sensors have excellent performance, and can be applied on wearable devices for human pulse monitoring and acoustic detection.

原文英語
文章編號111817
期刊Measurement: Journal of the International Measurement Confederation
202
DOIs
出版狀態已發佈 - 2022 10月

ASJC Scopus subject areas

  • 儀器
  • 電氣與電子工程

指紋

深入研究「Highly sensitive and wearable capacitive pressure sensors based on PVDF/BaTiO3 composite fibers on PDMS microcylindrical structures」主題。共同形成了獨特的指紋。

引用此