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Enhancement of beta-phase in PVDF films embedded with ferromagnetic Gd5Si4 nanoparticles for piezoelectric energy harvesting

TitleEnhancement of beta-phase in PVDF films embedded with ferromagnetic Gd5Si4 nanoparticles for piezoelectric energy harvesting
Publication TypeJournal Article
Year of Publication2017
AuthorsHarstad, S, Souza, N, Soin, N, El-Gendy, AA, Gupta, S, Pecharsky, VK, Shah, T, Siores, E, Hadimani, RL
JournalAip Advances
Volume7
Pagination056411
Date Published05
ISBN Number2158-3226
Accession NumberWOS:000402797100278
Keywordsfibers, inversion, Materials Science, physics, poly(vinylidene fluoride) membranes, Technology - Other Topics
Abstract

evealed that while the pristine PVDF membrane shows weak diamagnetic behavior, the Gd5Si4-PVDF films loaded at 2.5 wt% and 5 wt% Gd5Si4 show enhanced ferromagnetic behavior with paramagnetic contribution from Gd5Si3 phase. The interfacial interactions between Gd5Si4 and PVDF results in the preferential crystallization of the beta-phase as confirmed via the shift in the CH2 asymmetric and symmetric stretching vibrations in the FTIR. These results confirm the magnetic Gd5Si4 nanoparticles embedded in the PVDF membrane lead to an increased beta-phase fraction, which paves the way for future efficient energy harvesting applications using a combination of magnetic and piezoelectric effects. (C) 2017 Author(s).

DOI10.1063/1.4973596
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