Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.2
3.4
Journals
Materials
Special Issues
Design, Performance and Application Research of Smart Piezoelectric Materials
materials-logo
Submit to Materials Review for Materials Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Design, Performance and Application Research of Smart Piezoelectric Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Physics".

Deadline for manuscript submissions: closed (20 February 2024) | Viewed by 4037

Special Issue Editors

Prof. Dr. Qingqing Ke

E-Mail Website
Guest Editor
School of Microelectronics Science and Technology, Sun Yat-Sen University, Guangzhou 510275, China
Interests: piezoelectrics; thin film; sensor; actuator; transducer; ultrasonics; medical imaging; NDT
Prof. Dr. Shifeng Guo

E-Mail Website
Co-Guest Editor
Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
Interests: piezoelectrics; thin film; sensor; actuator; transducer; ultrasonics; medical imaging; NDT

Special Issue Information

Dear Colleagues,

Piezoelectric phenomena and related materials are known to mankind for more than a century, with tremendous progress made with respect to both scientific understandings and practical applications. With an intrinsically strong electromechanical coupling, piezoelectric oxide-based, thin-film ceramics have been applied in many commercial piezoelectric devices, including electromechanical transducers and sensors as well as microelectromechanical systems.

In the last two decades in particular, the research on piezoelectrics has largely been driven by the ever-changing technological demand, and the ultimate goal of a sustainable society. Much research effort has been devoted to establishing strategies to obtain a large piezoelectric response in oxide piezoelectrics by exploring mechanisms from the micro-scale to the atomic scale. These strategies have mainly included enhancing intrinsic atomic distortion, domain switching, phase boundary modulation, interface engineering, and defect manipulation, etc. Among these, phase boundary manipulation has been the most widely pursued approach with an immense amount of breakthroughs.

The aim of this Special Issue is to update the fundamental aspects of these strategies with a particular focus on their roles in promoting the performance of piezoelectrics, and inspire the potential discovery of new piezoelectric materials and structures. More importantly, we would like to stress the current challenges faced in piezoelectrics and provide an outlook of the existing strategies to tackle the current obstacles, so as to achieve breakthroughs in giant piezoelectricity.

Prof. Dr. Qingqing Ke
Prof. Dr. Shifeng Guo
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • piezoelectrics
  • ceramic
  • thin film
  • lead-free
  • MPB
  • interface engineering
  • transducer
  • acoustic

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

12 pages, 4122 KiB  
Article
Ferroelectric Phase Transition in Barium Titanate Revisited with Ab Initio Molecular Dynamics
by Christian Ludt, Dirk C. Meyer and Matthias Zschornak
Materials 2024, 17(5), 1023; https://doi.org/10.3390/ma17051023 - 23 Feb 2024
Viewed by 668
Abstract
The ferroelectric phase transition of the perovskite barium titanate as well as its technical importance regarding the switching of respective polar properties is well known and has been thoroughly studied, both experimentally and on theoretical grounds. While details about the phase diagram as [...] Read more.
The ferroelectric phase transition of the perovskite barium titanate as well as its technical importance regarding the switching of respective polar properties is well known and has been thoroughly studied, both experimentally and on theoretical grounds. While details about the phase diagram as well as transition temperatures are experimentally well known, the theoretical approaches still face difficulties in contributing a detailed description of these phase transitions. Within this work, a new methodological approach is introduced to revisit the ferroelectric phase transition with first-principles methods. With the chosen ab initio molecular dynamics (AIMD) method in combination with the applied NpT ensemble, we are able to join the accuracy of density functional theory (DFT) with ambient conditions, realized using a thermostat and barostat in an MD simulation. The derived phase diagram confirms recent corrections in the theoretical models and reproduces the phase boundary pressure dependence of TC. In conclusion of the statistical atomistic dynamics, the nature of the transition can be described in a more detailed way. In addition, this work paves the way towards locally patterned piezoelectrica by means of acoustic standing waves as well as piezoelectrically induced acoustic resonators. Full article
(This article belongs to the Special Issue Design, Performance and Application Research of Smart Piezoelectric Materials)
►▼ Show Figures

Figure 1

12 pages, 4017 KiB  
Article
Enhanced Energy Storage Performance and Efficiency in Bi0.5(Na0.8K0.2)0.5TiO3-Bi0.2Sr0.7TiO3 Relaxor Ferroelectric Ceramics via Domain Engineering
by Srinivas Pattipaka, Hyunsu Choi, Yeseul Lim, Kwi-Il Park, Kyeongwoon Chung and Geon-Tae Hwang
Materials 2023, 16(14), 4912; https://doi.org/10.3390/ma16144912 - 09 Jul 2023
Cited by 4 | Viewed by 1548
Abstract
Dielectric materials are highly desired for pulsed power capacitors due to their ultra-fast charge-discharge rate and excellent fatigue behavior. Nevertheless, the low energy storage density caused by the low breakdown strength has been the main challenge for practical applications. Herein, we report the [...] Read more.
Dielectric materials are highly desired for pulsed power capacitors due to their ultra-fast charge-discharge rate and excellent fatigue behavior. Nevertheless, the low energy storage density caused by the low breakdown strength has been the main challenge for practical applications. Herein, we report the electric energy storage properties of (1 − x) Bi0.5(Na0.8K0.2)0.5TiO3-xBi0.2Sr0.7TiO3 (BNKT-BST; x = 0.15–0.50) relaxor ferroelectric ceramics that are enhanced via a domain engineering method. A rhombohedral-tetragonal phase, the formation of highly dynamic PNRs, and a dense microstructure are confirmed from XRD, Raman vibrational spectra, and microscopic investigations. The relative dielectric permittivity (2664 at 1 kHz) and loss factor (0.058) were gradually improved with BST (x = 0.45). The incorporation of BST into BNKT can disturb the long-range ferroelectric order, lowering the dielectric maximum temperature Tm and inducing the formation of highly dynamic polar nano-regions. In addition, the Tm shifts toward a high temperature with frequency and a diffuse phase transition, indicating relaxor ferroelectric characteristics of BNKT-BST ceramics, which is confirmed by the modified Curie-Weiss law. The rhombohedral-tetragonal phase, fine grain size, and lowered Tm with relaxor properties synergistically contribute to a high Pmax and low Pr, improving the breakdown strength with BST and resulting in a high recoverable energy density Wrec of 0.81 J/cm3 and a high energy efficiency η of 86.95% at 90 kV/cm for x = 0.45. Full article
(This article belongs to the Special Issue Design, Performance and Application Research of Smart Piezoelectric Materials)
►▼ Show Figures

Figure 1

15 pages, 4109 KiB  
Article
Modulating the Performance of the SAW Strain Sensor Based on Dual-Port Resonator Using FEM Simulation
by Chunlong Cheng, Zihan Lu, Jingwen Yang, Xiaoyue Gong and Qingqing Ke
Materials 2023, 16(8), 3269; https://doi.org/10.3390/ma16083269 - 21 Apr 2023
Cited by 1 | Viewed by 1314
Abstract
Surface acoustic wave (SAW) strain sensors fabricated on piezoelectric substrates have attracted considerable attention due to their attractive features such as passive wireless sensing ability, simple signal processing, high sensitivity, compact size and robustness. To meet the needs of various functioning situations, it [...] Read more.
Surface acoustic wave (SAW) strain sensors fabricated on piezoelectric substrates have attracted considerable attention due to their attractive features such as passive wireless sensing ability, simple signal processing, high sensitivity, compact size and robustness. To meet the needs of various functioning situations, it is desirable to identify the factors that affect the performance of the SAW devices. In this work, we perform a simulation study on Rayleigh surface acoustic wave (RSAW) based on a stacked Al/LiNbO3 system. A SAW strain sensor with a dual-port resonator was modeled using multiphysics finite element model (FEM) method. While FEM has been widely used for numerical calculations of SAW devices, most of the simulation works mainly focus on SAW modes, SAW propagation characteristics and electromechanical coupling coefficients. Herein, we propose a systematic scheme via analyzing the structural parameters of SAW resonators. Evolution of RSAW eigenfrequency, insertion loss (IL), quality factor (Q) and strain transfer rate with different structural parameters are elaborated by FEM simulations. Compared with the reported experimental results, the relative errors of RSAW eigenfrequency and IL are about 3% and 16.3%, respectively, and the absolute errors are 5.8 MHz and 1.63 dB (the corresponding Vout/Vin is only 6.6%). After structural optimization, the obtained resonator Q increases by 15%, IL decreases by 34.6% and the strain transfer rate increases by 2.4%. This work provides a systematic and reliable solution for the structural optimization of dual-port SAW resonators. Full article
(This article belongs to the Special Issue Design, Performance and Application Research of Smart Piezoelectric Materials)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop