Microstructure and piezoelectric properties of AC poled relaxor-PbTiO3 perovskite single crystals DOI Open Access
Hiroshi Maiwa, Xiang Yu, Yan Sun

et al.

Microstructures, Journal Year: 2025, Volume and Issue: 5(3)

Published: May 7, 2025

High-performance perovskite relaxor-PbTiO3 (relaxor-PT) piezoelectric single crystals (SCs) fabricated by the melt-growth Bridgeman method have been widely used in medical ultrasound imaging devices as probes and high-performance underwater equipment since around 2,000. To improve properties of these SCs, use alternating-current poling (ACP) instead conventional DC has adopted 2018. Macro- microstructural observations scanning electron microscopy (SEM) are best way to easily confirm relationship between electrical macro- microstructure. After optimal ACP, fine 109° domain layers 0.5 several µm parallel electrodes obtained, contributing 10%-100% improvement dielectric constant constant. Relaxor-PT SCs solid state crystal growth with self-poring, excellent composition uniformity machinability, high performance, low acoustic impedance due inclusion spherical micropores also discussed.

Language: Английский

Optimizing High-Power Performance of [001]-Oriented Pb(Mg1/3Nb2/3)-PbTiO3 Through Combined DC and AC Polarization Above Curie Temperature DOI Creative Commons

Yuliang Zhu,

Xiaobo Wang, Wenchao Xue

et al.

Actuators, Journal Year: 2025, Volume and Issue: 14(2), P. 53 - 53

Published: Jan. 24, 2025

Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals (PMN-PT SCs) are widely utilized in high-performance piezoelectric devices due to their exceptional properties. Among the various post-processing techniques for domain engineering PMN-PT SCs, alternating current polarization (ACP) has become a adopted method enhancing performance. This study proposes new ultrahigh-temperature field-cooling (UFCP) technique, combining direct (DCP) and ACP with field cooling above Curie temperature. Dielectric spectra indicate that UFCP promotes electric field-induced phase transitions point, forming stable multiphase configuration. The transverse coefficient d31 of SCs is 1126 pC/N, electromechanical coupling factor k31 0.559. Compared traditional DCP, increases by 68.6%, mechanical quality Qm 16.7%, figure merit (FOM) 98.3%. Furthermore, under high-power excitation root-mean-square voltage 15 V, achieves 343% increase power 130.5% improvement FOM compared demonstrating its potential performance practical applications.

Language: Английский

Citations

0
Light-induced enhancement of alternating current poling quality and mechanical quality factor in ferroelectric single crystals DOI
Xinyu Jin, Yu Wang, Xiangda Meng

et al.

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(6)

Published: Feb. 10, 2025

Alternating current poling (ACP) and light fields have been studied as domain engineering methods for regulating the structures improving physical properties of ferroelectric crystals because their convenience, effectiveness, economic advantages. In this study, we propose a LACP method (ACP under above-bandgap illumination), by which transparency electro-optic Mn- Fe-doped KTa1−xNbxO3 single were improved compared with only ACP. Furthermore, mechanical quality factor (Qm = 538) sample poled using increased significantly 206% in contrast to that conventional high-temperature direct method. The results reveal light-induced reorientation defect dipoles is responsible enhancement ACP Qm. This study provides an efficient fast approach material design multifunctional devices.

Language: Английский

Citations

0
Dielectric and piezoelectric properties of Mn-doped Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 single crystals with varying PbTiO3 content under alternate and direct current poling DOI Creative Commons

Zhengze Xu,

Sipan Liu, Yohachi Yamashita

et al.

Journal of Applied Physics, Journal Year: 2025, Volume and Issue: 137(16)

Published: April 22, 2025

This study investigated the dielectric and piezoelectric properties of third-generation Mn-doped Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 (Mn: PIN-PMN-PT) single crystals with varying PT content using alternating current poling (ACP) direct (DCP) at room temperature. Ten types samples were taken sequentially from top to bottom crystal ingot, Mn decreasing accordingly. The ACP method demonstrated highest sample on top, yielding a constant (d33) 2280 pC/N, voltage (g33) 41.8 × 10−3 Vm/N, (ε33T/ε0) 6150, which are significantly higher (60% for d33, 84% ε33T/ε0) than DCP crystals. type exhibited high coercive field (Ec) reaching 4.8 kV/cm. Additionally, results indicate that enhances mechanical quality factor (Qm), achieving value 700. d33 ε33T/ε0 these two methods examined temperature beyond Curie provided valuable insights into optimizing strategies achieve enhanced performance Mn: PIN-PMN-PT devices.

Language: Английский

Citations

0
Microstructure and piezoelectric properties of AC poled relaxor-PbTiO3 perovskite single crystals DOI Open Access
Hiroshi Maiwa, Xiang Yu, Yan Sun

et al.

Microstructures, Journal Year: 2025, Volume and Issue: 5(3)

Published: May 7, 2025

High-performance perovskite relaxor-PbTiO3 (relaxor-PT) piezoelectric single crystals (SCs) fabricated by the melt-growth Bridgeman method have been widely used in medical ultrasound imaging devices as probes and high-performance underwater equipment since around 2,000. To improve properties of these SCs, use alternating-current poling (ACP) instead conventional DC has adopted 2018. Macro- microstructural observations scanning electron microscopy (SEM) are best way to easily confirm relationship between electrical macro- microstructure. After optimal ACP, fine 109° domain layers 0.5 several µm parallel electrodes obtained, contributing 10%-100% improvement dielectric constant constant. Relaxor-PT SCs solid state crystal growth with self-poring, excellent composition uniformity machinability, high performance, low acoustic impedance due inclusion spherical micropores also discussed.

Language: Английский

Citations

0