Journal
SENSORS AND ACTUATORS A-PHYSICAL
Volume 247, Issue -, Pages 316-322Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2016.06.011
Keywords
Lead-free piezoelectric materials; Nanofiber composites; Solution process; Fiber technology; Electrospinning
Funding
- R&D program - Korea Institute of Ceramic Engineering and Technology (KICET)
- R&D program for the strategic core materials - Ministry of Trade, Industry and Energy, Republic of Korea
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Flexible lead-free piezoelectric nano fibers composites of BNT-ST(0.78Bi(0.5)Na(0.5)TiO(3)-0.22SrTiO(3)) ceramic and polyvinylidenefluoride (PVDF) polymer were synthesized by an electrospinning method. The as prepared BNT-ST/PVDF nanofibers composite with different BNT-ST concentrations from 0 wt% to 80 wt% were characterized by XRD, FE-SEM and EDS to investigate the crystal structure, microstructure and morphology. The piezoelectric characteristics were analyzed by the polarization-electric field (P-E) loops, and the results demonstrated that a BNT-ST content of 60 wt% had enhanced piezoelectric characteristics. The possibility of frequency sensor application was confirmed by measuring the output voltage as a function of the frequency of the BNT-ST/PVDF nanofiber composite with a BNT-ST content of 60 wt%. (C) 2016 Elsevier B.V. All rights reserved.
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