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

被引：4

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

来源：

SURFACES AND INTERFACES | 2024年 / 44卷

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.

引用

页数：9

共 36 条

[21] Nanoscale interfacial electroactivity in PVDF/PVDF-TrFE blended films with enhanced dielectric and ferroelectric properties [J].