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dc.creatorBobić, Jelena
dc.creatorIlić, Nikola
dc.creatorDespotovic, Zeljko V.
dc.creatorDžunuzović, Adis
dc.creatorGrigalaitis, Robertas
dc.creatorStijepovic, Ivan
dc.creatorVijatović Petrović, Mirjana
dc.date.accessioned2023-11-28T10:42:18Z
dc.date.available2023-11-28T10:42:18Z
dc.date.issued2023
dc.identifier.urihttp://rimsi.imsi.bg.ac.rs/handle/123456789/2429
dc.description.abstractIn the last year energy harvesters based on piezoelectricity from mechanical vibration has emerged as the very promising devices that are explored extensively for its functionality in energy technologies. In this paper a series of flexible lead- free BZT/PVDF and lead based PZT/PVDF piezocomposites with variable filler content up to 50 vol. % have been prepared by hot pressing method. Structure and morphology of BZT and PZT powders as well as distribution of piezo-active filler in obtained flexible films were characterized by XRD and SEM analysis. Total amoun of electro active phase (% FEA) of PVDF is higher in PZT-based films in comparison with BZT based ones but the contribution of more desirable β- phase is higher in BZT-PVDF films. In both composite dielectric permittivity's was increased in contrast to their polymer PVDF host matrix, but also displayed decreased breakdown strenght and raised energy loss. In addition, the remnant polarization (Pr) and leakage current were also investigated to evaluate the breakdown strength in both types of flexible films. Calculations of storage energies and output voltage obtained for the investigated materials revealed an increasing trend with increasing amount of BZT and PZT active phase. The maximum storage energy of 0.42 J/cm3 at 390 kV/cm3 was obtained for PZT-PVDF (40-60) films while the maximum output voltage of about 10 V was obtained for PZT-PVDF (50-50) flexible film. In addition, comparisons between properties of lead based and lead free flexible films as well as potential use of those films as energy storage and energy harvesting systems were considered.sr
dc.language.isoensr
dc.publisher7th World Congress on Materials science and Engineering, 5th World Congress on Lasers, Optics and Photonics, joint event, Valencia, Spainsr
dc.rightsopenAccesssr
dc.source7th World Congress on Materials science and Engineering, 5th World Congress on Lasers, Optics and Photonics, joint event, Valencia, Spainsr
dc.subjectEnergy harvestingsr
dc.subjectPiezocompositessr
dc.subjectLeakage currentsr
dc.subjectFlexible filmssr
dc.subjectPZT-PVDF filmssr
dc.titleLead Free (BaZr0.2Ti0.8O3) and Lead Based (PbZr0.52Ti0.48O3) Flexible Thick Films: Structural Properties and Potential Use as Energy Storage and Energy Harvesting Systemssr
dc.typeconferenceObjectsr
dc.rights.licenseARRsr
dc.identifier.fulltexthttp://rimsi.imsi.bg.ac.rs/bitstream/id/6224/bitstream_6224.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_rimsi_2429
dc.type.versionpublishedVersionsr


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