Open AccessZinc oxide nanowires‐based flexible pressure sensor
Author(s) -
Wood Graham S.,
Jeronimo Karina,
Che Mahzan Muhammad Ammar Bin,
Cheung Rebecca,
Mastropaolo Enrico
Publication year - 2021
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mna2.12069
Subject(s) - materials science , polydimethylsiloxane , nanowire , pressure sensor , kapton , piezoelectricity , nanogenerator , layer (electronics) , elastomer , optoelectronics , substrate (aquarium) , transducer , nanotechnology , electrode , composite material , polyimide , acoustics , physics , oceanography , chemistry , geology , thermodynamics
Embedding piezoelectric nanowires within a soft elastomer material should provide a superior pressure sensing transducer, exploiting the piezoelectric properties of the nanowire material while maintaining flexibility. Here, a flexible sensor has been fabricated on a Kapton substrate and has incorporated a layer of polydimethylsiloxane with embedded zinc oxide nanowires as the pressure sensing mechanism. In response to applied compressive pressure up to 127 kPa, the device has generated a voltage, between electrodes on either side of the nanowire/polydimethylsiloxane layer, with a sensitivity of 23.6 mV/kPa, which is 100 times greater than previously reported zinc oxide nanostructure‐based flexible sensors.