Acoustic sensor based on a PVDF-TrFE/BTO composite structure with improved ferroelectric and piezoelectric properties

被引:3
作者
Sahoo, Rajesh [1 ]
Duraisamy, Dhayanithi [2 ]
Raj, Nirmal Prashanth Maria Joseph [4 ,5 ]
Rao, Alluri Nagamalleswara [3 ,6 ]
Mohanty, Smita [1 ]
Venkatesan, Giridharan Nambi [2 ]
Kim, Sang-Jae [3 ]
Ramadoss, Ananthakumar [1 ,6 ]
机构
[1] Cent Inst Petrochem Engn & Technol CIPET, Sch Adv Res Petrochem, Lab Adv Res Polymer Mat LARPM, Bhubaneswar 751024, India
[2] Natl Inst Technol, Dept Phys, Trichy 620015, Tamil Nadu, India
[3] Jeju Natl Univ, Fac Appl Energy Syst, Nanomat & Syst Lab, Major Mechatron Engn, Jeju 63243, South Korea
[4] Univ St Andrews, Sch Phys & Astron, Energy Harvesting Res Grp, SUPA, St Andrews KY16 9SS, Scotland
[5] Luxembourg Inst Sci & Technol, Mat Res & Technol Dept, 41 rue Brill, L-4422 Belvaux, Luxembourg
[6] Cent Inst Petrochem Engn & Technol CIPET, Adv Res Sch Technol & Prod Simulat ARSTPS, Sch Adv Res Polymers SARP, TVK Ind Estate, Chennai 600032, India
关键词
Poly (vinylidene fluoride-trifluoroethylene); Barium titanante; PFM; Ferroelectrics; Sensors; CERAMIC/POLYMER COMPOSITES; BARIUM ACETATE; CERAMICS; BEHAVIOR; FILMS;
D O I
10.1016/j.surfin.2023.103747
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ferroelectric composite structures of poly (vinylidene fluoride-co-trifluoroethylene)/ barium titanate (PVDFTrFE/BTO) were prepared using a solvent casting method and altered using electrical and mechanical modes to improve their ferroelectric characteristics. The PFM and P-E loop analytic studies validated the enhanced ferroelectric and piezoelectric capabilities of the modified composite structures following mechanical stretching and electrical poling. The stretched and poled samples (PT-BT-s-p) were able to achieve a maximum saturated polarization of 5.98 mu C/cm2 with suitable saturation loops and domain switching points. The presence of ferroelectric domains was further confirmed by the PFM amplitude and PFM phase graphs of the PT-BT-s-p composite structures. Furthermore, the suggested composite structure achieved a maximum piezoelectric coefficient (d33) value of 11 pC/N. Finally, a lab-scale experiment with a sound wave sensing application was performed and seen with superior outcomes with varying waveforms, amplitudes, and frequencies, making it a promising contender for future sensory devices.
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页数:9
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