Ultrabroad-bandwidth ultrasonic transducer based on Sm-doped PMN-PT ceramic/epoxy 1–3 composite

Yang, Yixiao; Zhu, Konglin; Sun, Enwei; Liu, Peijun; Zhang, Rui; Cao, Wenwu

doi:10.1016/j.sna.2022.113873

Cited by 9 publications

(4 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The comparison of d33′ measured at the highest electric field revealed an almost 500% increase in the coefficient, i.e., from ~420 pm/V for undoped to ~1900 pm/V for 3% doped. The small-signal d33′ values for the 3%-doped sample (i.e., 1500 to 1900 pm/V for driving fields of 0.06 to 0.38 kV/cm) are among the highest reported for similar ceramic compositions ( 16 , 19 , 29 , 31 , 34 , 39 , 46 , 47 ). This confirms the ceramic quality and an efficient incorporation of Sm into the perovskite lattice (structural and microstructural data for the PMN-29PT series are presented in supplementary material 2).…”

Section: Resultsmentioning

confidence: 76%

Origins of the large piezoelectric response of samarium-doped lead magnesium niobate–lead titanate ceramics

Arzenšek,

Toš,

Drnovšek

et al. 2024

Sci. Adv.

View full text Add to dashboard Cite

The recent discovery of the large piezoelectric response of Pb(Mg 1/3 Nb 2/3 )O 3 -PbTiO 3 (PMN-PT) ceramics induced by samarium doping has provided a substantially improved functionality to the group of lead-based relaxor-ferroelectric materials. Different mechanisms have been so far proposed for the large piezoelectricity; however, the explanations are contradictory and focused on a unified description. Here, we use nonlinear harmonic piezoelectric measurements combined with multiscale structural analysis to clarify the origins of the ultrahigh piezoelectric response of samarium-doped PMN-PT. Our methodological approach allowed us to separate the multiple piezoelectric contributions, revealing their quantitative role in the total response. The results show that the ultrahigh piezoelectricity cannot be attributed to a single mechanism but is rather a complex combination of different contributions originating from the multiple effects of samarium doping on the long- and short-range structure of PMN-PT. The study offers a baseline for future engineering of the key material parameters affecting the large piezoelectric response of relaxor-ferroelectric ceramics.

show abstract

Section: Resultsmentioning

confidence: 76%

Origins of the large piezoelectric response of samarium-doped lead magnesium niobate–lead titanate ceramics

Arzenšek,

Toš,

Drnovšek

et al. 2024

Sci. Adv.

View full text Add to dashboard Cite

show abstract

“…[ 117 ] In recent studies, researchers mainly focused on the following three directions on piezocomposites. First, introducing new piezoelectric ceramics/crystal to fabricate new composites is still the main research direction to improve the acoustic performance of the transducers, such as 2.5Sm‐PMN‐30PT 1–3 composites (2.3 MHz, −6 dB bandwidth of 135.9%), [ 118 ] NBBT 1–3 composite ( k t > 71%), [ 119 ] PNN‐PZT composites, [ 120 ] textured PMN‐PZT composites, [ 101a ] etc. Second, proposing new structure designs and using new fabrication methods to tune the volume fraction and the vibration of the elements, including a cold ablation process method for PMN‐PT 1–3 composites, [ 121 ] a multiple‐layer‐design to achieve larger transmission efficiency, [ 122 ] non‐periodic composites breaking the limits of the lateral mode, [ 123 ] etc.…”

Section: Piezoelectric Materials and Ultrasound Transducersmentioning

confidence: 99%

An Emerging Era: Conformable Ultrasound Electronics

Zhang,

Du,

Kim

et al. 2023

Advanced Materials

View full text Add to dashboard Cite

Conformable electronics are regarded as the next generation of personal healthcare monitoring and remote diagnosis devices. In recent years, piezoelectric based conformable ultrasound electronics (cUSE) have been intensively studied due to their unique capabilities, including no‐radiative monitoring, soft tissue imaging, deep signal decoding, wireless power transfer, portability, and compatibility. This review provides a comprehensive understanding of cUSE for use in biomedical and healthcare monitoring systems and a summary of their recent advancements. Following an introduction to the fundamentals of piezoelectrics and ultrasound transducers, the critical parameters for transducer design are discussed. Next, five types of cUSE with their advantages and limitations are highlighted, and the fabrication of cUSE using advanced technologies is discussed. In addition, the working function, acoustic performance, and accomplishments in various applications are thoroughly summarized. We note that application considerations must be given to the tradeoffs between material selection, manufacturing processes, acoustic performance, mechanical integrity, and the entire integrated system. Finally, we highlight current challenges and directions for the development of cUSE, and provide research flow as the roadmap for future research. In conclusion, these advances in the fields of piezoelectric materials, ultrasound transducers, and conformable electronics spark an emerging era of biomedicine and personal healthcare.This article is protected by copyright. All rights reserved

show abstract

“…Extensive research [16][17][18][19] related to PMN-PT has highlighted its wide-ranging physical properties, especially its excellent piezoelectric response. Various applications have been soon developed such as actuators, [20] ultrasonic transducers, [21] and energy harvesting devices. [22] However, the relatively low curie temperature (≈150 °C) of PMN-PT severely constrains the operational temperature range and life span under long-term usage.…”

Section: Introductionmentioning

confidence: 99%

High Entropy Nonlinear Dielectrics with Superior Thermally Stable Performance

et al. 2023

View full text Add to dashboard Cite

A high configurational entropy, achieved through a proper design of compositions can minimize the Gibbs free energy and stabilize the quasi‐equilibrium phases in a solid‐solution form. This leads to the development of high‐entropy materials with unique structural characteristics and excellent performance, which otherwise could not be achieved through conventional pathways. This work developed a high‐entropy nonlinear dielectric system, based on the expansion of lead magnesium niobate–lead titanate. A dense and uniform distribution of nano‐polar regions was observed in the samples owing to the addition of Ba, Hf, and Zr ions, which led to enhanced performance of nonlinear dielectrics. The fact that no structural phase transformation was detected up to 250 °C, and no noticeable change or steep drop in structural and electrical characteristics was observed at high temperatures suggests a robust thermal stability of the dielectric systems developed. With these advantages, these materials hold vast potential for applications, such as dielectric energy storage, dielectric tunability, and electro‐caloric effect. Thus, this work offers a new high‐entropy configuration with elemental modulation, with enhanced dielectric material features.This article is protected by copyright. All rights reserved

show abstract

Ultrabroad-bandwidth ultrasonic transducer based on Sm-doped PMN-PT ceramic/epoxy 1–3 composite

Cited by 9 publications

References 28 publications

Origins of the large piezoelectric response of samarium-doped lead magnesium niobate–lead titanate ceramics

Origins of the large piezoelectric response of samarium-doped lead magnesium niobate–lead titanate ceramics

An Emerging Era: Conformable Ultrasound Electronics

High Entropy Nonlinear Dielectrics with Superior Thermally Stable Performance

Contact Info

Product

Resources

About