Kar, Epsita and Ghosh, Puja and Pratihar, Shewli and Tavakoli, Mahmoud and Sen, Shrabanee (2023) SiO2 Nanoparticles Incorporated Poly(Vinylidene) Fluoride Composite for Efficient Piezoelectric Energy Harvesting and Dual-Mode Sensing. Energy Technology, 11 (2). Art No-2201143. ISSN 2194-4288

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Flexible electronic skins (e-skins) have a wide range of applications in health monitoring, human-machine interfaces, and robotics. Herein, a novel architecture of e-skins with a combination of multimode measurement and low-cost implementation is proposed. A single electronic skin layer is used to integrate both the pressure and temperature sensing properties. An e-skin membrane is first developed with poly(vinylidene) fluoride incorporated with silicon dioxide nanoparticles. When combined with electrodes, this simple architecture allows the implementation of multimode pressure and temperature sensing. This e-skin exhibits excellent pressure sensitivity with a response time of 1.6 ms. This sensing performance can be attributed to the uniform distribution of the embedded nanoparticles, leading to an enhancement of the electroactive beta phase. This e-skin generates a voltage, from the finger movements, that can be used to detect precisely the minute changes of the finger movement. This electronic skin demonstrates the detection of a linear range of temperature which can be attributed to the phonon-assisted hopping mechanism. A 4 x 4 pressure sensing array is demonstrated, which is able to map the inserted pressure as well as temperature stimuli. Thus, this study provides a new conceptual design for the next-generation green electronic skins.

Item Type: Article
Subjects: Electronics
Depositing User: Bidhan Chaudhuri
Date Deposited: 30 Aug 2023 07:50
Last Modified: 30 Aug 2023 07:50
URI: http://cgcri.csircentral.net/id/eprint/5466

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