Zinc oxide nanowires-based flexible pressure sensor

Graham Wood, Karina Jeronimo Martinez, Ammar Bin Che Mahzan, Rebecca Cheung, Enrico Mastropaolo

Research output: Contribution to journalLetterpeer-review

Abstract

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. In this letter, a flexible sensor has been fabricated on a Kapton substrate and has incorporated a layer of polydimethylsiloxane (PDMS) with embedded zinc oxide (ZnO) 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/PDMS layer, with a sensitivity of 23.6 mV/kPa, which is 100 times greater than previously reported ZnO nanostructure-based flexible sensors.
Original languageEnglish
Pages (from-to)432-435
Number of pages4
JournalMicro and Nano Letters
Volume16
Issue number8
Early online date20 Apr 2021
DOIs
Publication statusPublished - 22 Jul 2021

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