A Review of Lead Perovskite Piezoelectric Single Crystals and Their Medical Transducers Application

Yamashita, Yohachi; Karaki, Tomoaki; Lee, Ho-Yong; Wan, Haotian; Kim, Hwang-Pill; Jiang, Xiaoning

doi:10.1109/tuffc.2022.3160526

Cited by 42 publications

(22 citation statements)

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“…Some FE compounds of the PMN-PT family with the general formula of Pb[Mg 1/3 Nb 2/3 ) x Ti 1−x ]O 3 were known to become PV after WO 3 doping [23] and recently the PV effect has been also reported for two compounds with stoichiometry at the vicinity of the morphotropic phase boundary region [33,43,44]. Crystals of this type are available commercially owing to their important electro-optical [45][46][47] and piezoelectric properties having a wide range of applications [48][49][50]. In this work a single crystal of Pb[(Mg 1/3 Nb 2/3 ) 0.70 Ti 0.30 ]O 3 was ordered from Crystal GmbH (Germany) and its composition was independently verified by energy-dispersive x-ray spectroscopy (EDS).…”

Section: Experimental Detailmentioning

confidence: 99%

On the photovoltaic effect asymmetry in ferroelectrics

Semak¹,

Kapustianyk²,

Eliyashevskyy³

et al. 2022

J. Phys.: Condens. Matter

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Despite symmetrical polarization, the magnitude of a light-induced voltage is known to be asymmetric with respect to poling sign in many photovoltaic (PV) ferroelectrics (FEs). This asymmetry remains unclear and is often attributed to extrinsic effects. We show here for the first time that such an asymmetry can be intrinsic, steaming from the superposition of asymmetries of internal FE bias and electro-piezo-strictive deformation. This hypothesis is confirmed by the observed decrease of PV asymmetry for smaller FE bias. Moreover, the both PV effect and remanent polarization are found to increase under vacuum-induced expansion and to decrease for gas-induced compression, with tens percents tunability. The change in cations positions under pressure is analysed through the first-principle density functional theory calculations. The reported properties provide key insight for FE-based solar elements optimization.

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Section: Experimental Detailmentioning

confidence: 99%

On the photovoltaic effect asymmetry in ferroelectrics

Semak¹,

Kapustianyk²,

Eliyashevskyy³

et al. 2022

J. Phys.: Condens. Matter

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“…10 Unfortunately, there are great challenges in its temperature stability and growth, which cannot achieve the requirements of high-power and large-size application. 6,11 It has been reported that piezoelectric ceramics with good piezoelectric properties and stability are more used in underwater acoustic transducers. 12−15 In addition to optimizing the properties of piezoelectric materials, polymers also enable new structures of 1-3 piezoelectric composites through different preparation methods.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with piezoelectric ceramics, a single crystal has a higher value of piezoelectric constant d 33 (up to 4000 pC/N) and a higher k t (>90%) . Unfortunately, there are great challenges in its temperature stability and growth, which cannot achieve the requirements of high-power and large-size application. , It has been reported that piezoelectric ceramics with good piezoelectric properties and stability are more used in underwater acoustic transducers. − In addition to optimizing the properties of piezoelectric materials, polymers also enable new structures of 1-3 piezoelectric composites through different preparation methods. − The shapes of 1-3 piezoelectric composites have been reported to be planar, curved, cylindrical, and spherical, all of which are doped with epoxy resin. ,− Note that the above PZT–epoxy resin composite (PEC) are rigid structures and do not have the flexibility to adapt to different shapes of sonar carrier surfaces. At the same time, epoxy resins with poor temperature stability cannot meet the demand of high-power application. , Later, the researchers turned to the combination of two fillers, and they found that the fillings of softer materials resulted in higher electromechanical coupling coefficients. − This inspired us to design a flexible 1-3 piezoelectric composite to achieve higher electroacoustic conversion efficiency, which uses soft fillers instead of all rigid epoxy resins.…”

Section: Introductionmentioning

confidence: 99%

Flexible 1-3 Piezoelectric Composites with Soft Embedded Conductive Interconnects for Underwater Acoustic Transducers

Hao

Zhong

Zhang

et al. 2023

ACS Appl. Electron. Mater.

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1-3 Piezoelectric composites have been widely used in underwater acoustic transducers because of their advanced electromechanical coupling properties relative to bulk piezoelectric ceramics. However, the existing applied composites are mainly rigid 1-3 PZT–epoxy resin composites, which have rigid structures and cannot be adapted to various sonar carriers with complex surfaces. Here, we design and develop a flexible 1-3 PZT–silicone rubber composite (PSC) for the first time. PSC combines a soft silicone rubber polymer in PZT with flexible embedded island-bridge conductive interconnects to enable the flexibility of both the piezoelectric sensing core and the electrical layer. The flexible wide bridge structure embedded in the polymer can cope with the large bending deformation of PSC with good conductive property, while the rigid thin island structure ensures the high acoustic performance of piezoelectric materials. A PSC sample is prepared with its structural parameters optimized via finite element analysis and is experimentally verified to have good flexibility, high electromechanical coupling coefficient (k t = 0.7), great thermal stability (from 25 to 105 °C), and bending stability (bending angle up to 215°). In addition, a preparation method for flexible 1-3 PSC is introduced, which has the advantages of high efficiency, low cost, no sample size restriction, and no high-temperature operation. The flexible 1-3 PSC in this work paves an important way for the development and application of the next generation of flexible underwater acoustic transducers.

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“…Studies of perovskite ferroelectric crystals have provided clues for enhancing the piezoelectricity of PZT ceramics without sacrificing T C and E C because these materials exhibit strong piezoelectric anisotropy (14)(15)(16)(17)(18). For example, rhombohedral PMN-PbTiO 3 and BaTiO 3 crystals with spontaneous polarization directions along the <111> orientation have the highest reported d 33 along the <001> crystal-lographic orientation, which is three to seven times as high as that of their ceramic counterparts, but with the same T C (14,15).…”

mentioning

confidence: 99%

Lead zirconate titanate ceramics with aligned crystallite grains

Daniels

et al. 2023

Science

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The piezoelectric properties of lead zirconate titanate [Pb(Zr,Ti)O 3 or PZT] ceramics could be enhanced by fabricating textured ceramics that would align the crystal grains along specific orientations. We present a seed-passivated texturing process to fabricate textured PZT ceramics by using newly developed Ba(Zr,Ti)O 3 microplatelet templates. This process not only ensures the template-induced grain growth in titanium-rich PZT layers but also facilitates desired composition through interlayer diffusion of zirconium and titanium. We successfully prepared textured PZT ceramics with outstanding properties, including Curie temperatures of 360°C, piezoelectric coefficients d 33 of 760 picocoulombs per newton and g 33 of 100 millivolt meters per newton, and electromechanical couplings k 33 of 0.85. This study addresses the challenge of fabricating textured rhombohedral PZT ceramics by suppressing the otherwise severe chemical reaction between PZT powder and titanate templates.

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A Review of Lead Perovskite Piezoelectric Single Crystals and Their Medical Transducers Application

Cited by 42 publications

References 0 publications

On the photovoltaic effect asymmetry in ferroelectrics

On the photovoltaic effect asymmetry in ferroelectrics

Flexible 1-3 Piezoelectric Composites with Soft Embedded Conductive Interconnects for Underwater Acoustic Transducers

Lead zirconate titanate ceramics with aligned crystallite grains

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