Flexible Electrospun PVDF Piezoelectric Nanogenerators with Electrospray-Deposited Graphene Electrodes

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dc.authorid0000-0002-8554-3025
dc.authorid0000-0001-8405-3676
dc.contributor.authorUnsal, Omer Faruk
dc.contributor.authorAltin, Yasin
dc.contributor.authorBedeloglu, Ayse Celik
dc.date.accessioned2026-02-12T21:05:12Z
dc.date.available2026-02-12T21:05:12Z
dc.date.issued2023
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractToday, there is a great demand for the development of portable, lightweight, flexible, and stable devices that produce and store energy to provide the power that wearable electronics and smart textile materials need. For this purpose, in recent years, researchers have focused on the development of nanofiber-based nanogenerators that have high surface areas thanks to their nanofibrous structures. Therefore, this study presents the development of piezoelectric nanogenerators made of poly(vinylidene fluoride) (PVDF) nanofibers and graphene-based flexible electrodes via electrospray deposition (ESD) technique using electrospinning devices. First, graphene oxide (GO) was electrosprayed onto the PVDF-nanofiber surface, then, the coated GO layer was reduced by chemical treatment to obtain reduced-GO (rGO) and to increase the electrical conductivity. With the ESD technique, it has been observed that graphene oxide nanosheets successfully wrapped on the nanofibers without agglomerating, and this effect was further enhanced by the reduction process. The effect of different thicknesses of graphene electrodes on the efficiency of nanogenerators was investigated. As a result, a maximum peak-to-peak voltage of 1.00 V was produced by a rGO-sprayed nanofiber-based nanogenerator, while 0.688 V was obtained with pure PVDF nanofibers. Also, voltage-per-gram analysis showed that the output voltage was directly related to the electrode morphology and thickness.
dc.description.sponsorshipTurkish Scientific and Technical Research Council, TUBITAK [219M103]; COST (European Cooperation in Science and Technology)
dc.description.sponsorshipThis study was supported by Turkish Scientific and Technical Research Council, TUBITAK, project no: 219M103. This article is based upon work from COST Action High-performance Carbon-based composites with Smart properties for Advanced Sensing Applications (EsSENce Cost Action CA19118, https://www.context-cost.eu) supported by COST (European Cooperation in Science and Technology, https://www.cost.eu.
dc.identifier.doi10.1007/s11664-022-10169-w
dc.identifier.endpage2061
dc.identifier.issn0361-5235
dc.identifier.issn1543-186X
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85145400398
dc.identifier.scopusqualityQ2
dc.identifier.startpage2053
dc.identifier.urihttps://doi.org/10.1007/s11664-022-10169-w
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6850
dc.identifier.volume52
dc.identifier.wosWOS:000906714900002
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Electronic Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260212
dc.subjectElectrospray
dc.subjectgraphene
dc.subjectnanofiber
dc.subjectpoly(vinylidene fluoride) (PVDF)
dc.subjectpiezoelectric nanogenerator
dc.titleFlexible Electrospun PVDF Piezoelectric Nanogenerators with Electrospray-Deposited Graphene Electrodes
dc.typeArticle

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