Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 24, Issue 37, Pages 5807-5813Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201401267
Keywords
pressure change sensing; self-powered; triboelectric sensor
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Funding
- thousands talents program for pioneer researcher and his innovation team, China
- Chinese Scholars Council
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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.
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