Lead-free PDMS/PPy based low-cost wearable piezoelectric nanogenerator for self-powered pulse pressure sensor application

Veeralingam, S. and Bharti, D.K. and Badhulika, Sushmee (2022) Lead-free PDMS/PPy based low-cost wearable piezoelectric nanogenerator for self-powered pulse pressure sensor application. Materials Research Bulletin, 151. pp. 1-7. ISSN 0025-5408

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Self-powered biocompatible electronic devices to detect vital physiological signals of the human body are in great demand in wearable applications. In this work, a low-cost polydimethylsiloxane/polypyrrole composite polymer film-based piezoelectric nanogenerator is fabricated and utilized as a self-powered arterial pulse pressure sensor. XRD and Raman analysis are used to confirm the crystal structural orientation and chemical composition of composite polymer, respectively. Uniform and crack-free morphology of PDMS/PPy composite polymer film is confirmed via Field Emission Scanning Electron Microscopy, while Energy Dispersive X-Ray is used to study the elemental analysis of composite polymer film, which confirms that there is no extra impurity present in the system. A flexible and robust piezoelectric nanogenerator with device configuration of Al coated PET/(PDMS: PPy)/ ITO coated PET is fabricated that gives an output voltage of 12 V and current density of 0.11 µA/cm2 when 1.47 N/cm2 pressure is applied. The biocompatible nanogenerator as a self-powered pulse sensor is demonstrated, thus proving its potential for developing versatile self-powered systems useful in biomedical applications. © 2022

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IITH Creators:
IITH CreatorsORCiD
Badhulika, Sushmeehttps://orcid.org/0000-0003-3237-3031
Item Type: Article
Additional Information: SB acknowledges financial assistance from Defence Research Development Organization (DRDO) funding DYSL-AST/CARS/CON- TRACT/20-21/02.
Uncontrolled Keywords: Flexible and wearable electronics, Hydrothermal, PDMS:PPy, Piezoelectric nanogenerator, Self-powered pulse sensor
Subjects: Electrical Engineering
Divisions: Department of Electrical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 22 Jun 2022 11:49
Last Modified: 28 Jun 2022 04:56
URI: http://raiith.iith.ac.in/id/eprint/9352
Publisher URL: https://doi.org/10.1016/j.materresbull.2022.111815
OA policy: https://v2.sherpa.ac.uk/id/publication/4654
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