Transparent piezoelectric nanogenerator for self-powered force sensing applications

Nair, N. M. , Deswal, S. and Dahiya, R. (2023) Transparent piezoelectric nanogenerator for self-powered force sensing applications. IEEE Sensors Letters, 7(5), 2501004. (doi: 10.1109/LSENS.2023.3272768)

Abstract

Piezoelectric materials have been widely used as dynamic force sensors, accelerometers, and energy harvesters. Herein, we report the poly(vinylidene fluoride-co-tetrafluoroethylene) (P(VDF-TrFE)) based transparent piezoelectric nanogenerator (PENG) as a self-powered force sensor. The 2 x 2 array of PENGs was fabricated by sandwiching the P(VDF-TrFE) film between two indium tin oxide-based electrodes. The device demonstrated good stable and repeatable piezoelectric response (sensitivity of 0.3 V N -1 ), which increased linearly with externally applied compressive force. The output voltage of the devices varied with the frequency of the external force application, and they showed a sensitivity of 0.25 V Hz -1 between the 2 to 10 Hz frequency. The excellent dynamic force sensing response, transparency, and self-power feature make presented devices ideally suited for applications such as see-through smart plaster that allow wound healing monitoring without removing the plaster.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Nair, Mr Nitheesh and Deswal, Ms Swati and Dahiya, Professor Ravinder
• Authors: Nair, N. M., Deswal, S., and Dahiya, R.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: IEEE Sensors Letters
• Publisher: IEEE
• ISSN: 2475-1472
• ISSN (Online): 2475-1472
• Published Online: 03 May 2023
• Copyright Holders: Copyright © 2023 IEEE
• First Published: First published in IEEE Sensors Letters 7(5): 2501004
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
304237		Predictive Haptic COding Devices In Next Generation interfaces	Ravinder Dahiya	European Commission (EC)	829186	ENG - Electronics & Nanoscale Engineering