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Membrane‐Based Self‐Powered Triboelectric Sensors for Pressure Change Detection and Its Uses in Security Surveillance and Healthcare Monitoring
Author(s) -
Bai Peng,
Zhu Guang,
Jing Qingshen,
Yang Jin,
Chen Jun,
Su Yuanjie,
Ma Jusheng,
Zhang Gong,
Wang Zhong Lin
Publication year - 2014
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201401267
Subject(s) - triboelectric effect , materials science , pressure sensor , voltage , heartbeat , sensitivity (control systems) , nanotechnology , dynamic pressure , remote sensing , acoustics , electrical engineering , computer science , aerospace engineering , mechanical engineering , electronic engineering , composite material , computer security , engineering , physics , geology
A new membrane‐based triboelectric sensor (M‐TES) is presented as a self‐powered pressure change sensor. It generates a voltage induced by surface triboelectric charges in response to an air pressure change. Extremely high detection resolutions of 0.34 Pa and 0.16 Pa are achieved when the air pressure increases and decreases in a small region away from the ambient standard atmosphere pressure, respectively, indicating an excellent sensitivity. By integrating the M‐TES with a signal processing unit, we demonstrate practical applications of the device in sensing footsteps, respirations, and heartbeat, which suggests widespread use of the M‐TES in fields of security surveillance, chemical engineering, geography research, environment monitoring, and personal healthcare.