Article
Physics, Applied
Geon-Ju Lee, Min Chan Kim, Sang-Goo Lee, Jeongho Lee, Yub Je, Jeongmin Lee, Hee Seon Seo, Wook Jo
Summary: The study reveals that the macrosymmetry of (011)-oriented nominally rhombohedral relaxor-PbTiO3 single crystals poled along the [011] direction is significantly underestimated, by about 10%, in terms of electromechanical coupling of the ZXt 45°-cut transverse extension specimen. This underestimation can be corrected by assigning a lower symmetry of 2.
APPLIED PHYSICS LETTERS
(2022)
Review
Acoustics
Hwang-Pill Kim, Haotian Wan, Chengtao Luo, Yiqin Sun, Yohachi Yamashita, Tomoaki Karaki, Ho-Yong Lee, Xiaoning Jiang
Summary: This article introduces the research progress and prospects of alternating current poling (ACP) as a new domain engineering method in Relaxor-PbTiO3 (PT) single crystals. It reviews the optimized conditions and unsolved issues, and discusses the influence of ferroelectric domain size on piezoelectricity.
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
(2022)
Article
Materials Science, Ceramics
Haochao Li, Wenyong Liao, Boyan Sun, Yuanhao Lu, Xingchen He, Ziting Xu, Chuanwei Huang, Zhenzhong Sun, Tao Li
Summary: Rare earth doping can enhance the piezoelectric performance of lead zinc niobate titanate crystals, but also introduces instability in phase transition temperature. In this study, high homogeneity Sm-doped Pb(Zn1/3Nb2/3)O3-5%PbTiO3 single crystals were successfully grown, and their local structure heterogeneity and piezoelectric properties were characterized by HRTEM and PFM techniques, respectively. The results demonstrate that Sm3+ doping enhances the local structural heterogeneity and has minimal effect on phase transition temperatures.
CERAMICS INTERNATIONAL
(2023)
Review
Materials Science, Multidisciplinary
Deepak Rajaram Patil, Dae-Yong Jeong, Shuxiang Dong, Jungho Ryu
Summary: Magnetoelectric (ME) composites exhibit strong ME interfacial coupling due to the interaction between piezoelectricity and magnetostriction. They are ideal candidates for multifunctional devices such as energy harvesters, magnetic field sensors, ME random access memories, and ME antennas. The ME coupling in these composites depends on the superior physical properties of the piezoelectric and magnetostrictive materials. Recent studies have focused on relaxor-PT single crystal-based ME composites, which have shown excellent ME coupling and achieved high performance in terms of ME voltage coefficient, magnetic noise, and output power.
PROGRESS IN MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Qian Li, Yangbin Liu, Jinfeng Liu, Kexin Song, Haisheng Guo, Fei Li, Zhuo Xu
Summary: Relaxor-PbTiO3 crystals have attracted widespread attention in the past two decades due to their excellent piezoelectric properties. However, the segregation of components during crystal growth results in low-performance consistency for Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PMN-PT) crystals, which limits their practical applications. This study introduces Nd3+ as A-site substitution to improve the uniformity of the electromechanical performance of PMN-PT crystals and achieves a high piezoelectric coefficient in the rhombohedral phase.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Crystallography
Lkhagvasuren Baasandorj, Zibin Chen
Summary: This review discusses recent developments on relaxor-PbTiO3 crystals and their practical applications, including single crystal growth methods, strategies for improving piezoelectric performance, and the discussion of anisotropic features.
Article
Chemistry, Physical
Yue Ming, Yanqi Cai, Qingguo Meng, Chao Yang, Da Huo, Jinhui Fan, Jian Zhang, Kai Li, Jiaming Li, Xudong Qi, Enwei Sun
Summary: Noncentrosymmetry ferroelectric materials coupled with switchable polarization have potential as candidates for photovoltaic applications due to their unique dissociation mechanism of photogenerated excitons associated with bulk polarization. In this study, we investigated the photovoltaic properties of the relaxor-based 24PIN-47PMN-29PT single crystals along various crystallographic orientations. Our results revealed a modulated photovoltaic response in the [111](c)-oriented crystal due to the polarization intensity difference. Additionally, we explored the domain configuration, phase structure, ferroelectric performance, and optical characteristics of the 24PIN-47PMN-29PT single crystals, providing insights into the origin of their anomalous photovoltaic effect. Our findings suggest that 24PIN-47PMN-29PT single crystals have the potential for applications in photovoltaic devices, photorefraction, and photorefractive optical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Physics, Applied
Yujia Jing, Limei Zheng, Fengying Liu, Xudong Qi, Guicheng Jiang, Jinhui Fan, Gang Liu, Weiming Lu
Summary: The study investigates the effect of manganese doping on the mechanical quality factor of PIN-PMN-PT ferroelectric single crystals. The results show significant enhancements in Q(15), Q(24), and Q(33) values, with unusual anisotropy demonstrated.
APPLIED PHYSICS LETTERS
(2021)
Article
Crystallography
Jinfeng Liu, Guisheng Xu, Xiu Zhu, Meilin Chen
Summary: In this study, Mn-doped BMT-PT single crystals were grown using a flux method. The crystals were irregular in shape and ranged in size from 4 to 10 mm. The results showed that as the temperature increased, the rhombohedral phase directly transformed into the cubic phase. The Mn-doping significantly improved the piezoelectric properties of the crystals.
Article
Nanoscience & Nanotechnology
Junjie Xiong, Zujian Wang, Xiaoming Yang, Rongbing Su, Wenjie Zhang, Xifa Long, Ying Liu, Chao He
Summary: This study demonstrates a new domain engineering method for achieving high piezoelectricity in the morphotropic phase boundary (MPB) region. The pulse poling (PP) method significantly increases the piezoelectric coefficient d(33) of the PIN-PT single crystals compared to the alternating current poling (ACP) method.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Multidisciplinary
Yuto Hino, Shotaro Hayashi
Summary: This study describes the selective growth of photoluminescent crystals under various optimized conditions, exhibiting unique mechano- and thermoresponsive disordering, crystal-to-crystal and SCSC phase transition. The rapid thermostimulus SCSC and thermotriggered domino-like SCSC phase transitions were observed, with the latter propagating spontaneously on a visible timescale.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Hwang-Pill Kim, Haotian Wan, Ho-Yong Lee, Yohachi Yamashita, Wook Jo, Xiaoning Jiang
Summary: To investigate the influence of poling conditions on thermal stabilities, we studied the direct current (DC) and alternating current (AC) poled relaxor-PbTiO3 single crystals grown by solid-state crystal growth. Our experiments showed that the AC-poling enhanced the thermal stabilities of these single crystals, with a dielectric permittivity of 4970 after annealing at 99.6°C, compared to 3560 in the DC-poling case. The dissimilar thermal stabilities can be attributed to different domain configurations.
MATERIALS RESEARCH LETTERS
(2023)
Article
Chemistry, Physical
Qingyuan Hu, Huimin Liao, Xin Liu, Li Jin, Kexin Song, Yongyong Zhuang, Zhuo Xu, Vladimir Ya Shur, Xiaoyong Wei
Summary: In this study, a thermal annealing and high temperature poling approach is proposed to enhance the piezoelectricity of Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 crystals. The manipulation of defects and defect polarization orientation results in a more polarized crystal. The improved piezoelectric property achieved under a maintained Curie temperature indicates the feasibility of the approach.
JOURNAL OF MATERIOMICS
(2023)
Article
Materials Science, Ceramics
Patri Tirupathi, Satish Kumar Mandal, Amreesh Chandra
Summary: The use of divalent ion doped BiFeO3 ceramics instead of pure BiFeO3, forming solid solutions with other ferroelectric materials, is emphasized. Phase stability in the complete composition range of the (1-y)Bi0.90Ca0.10FeO3-(y)PbTiO3 system shows interesting structure modulations. Changes in the crystal unit cell have significant effects on the microscopic structure. SEM studies reveal the formation of multiple types of grains in the system, which exhibit relaxor type characteristics in dielectric and magnetic properties. Appropriate models are used to explain the bi-relaxor type characteristics observed. Low temperature ac-magnetic studies suggest a predominant spin-glass type characteristic in samples with 0.30 < y < 0.50.
JOURNAL OF ELECTROCERAMICS
(2022)
Article
Materials Science, Multidisciplinary
Haruyuki Inui, Kyosuke Kishida, Le Li, Anna Maria Manzoni, Sebastian Haas, Uwe Glatzel
Summary: Since the proposal of the high entropy concept at the beginning of the millennium, research on this alloy family has been diverse, aiming to enhance mechanical properties. Various strengthening mechanisms, such as solid-solution hardening, hot and cold working, and precipitation hardening, can be utilized to achieve this goal. Both single- and multiphase high- and medium-entropy alloys can be optimized for mechanical strength through different processing routes, similar to conventional alloys like steels or Ni-based superalloys with only one base element.
Article
Materials Science, Multidisciplinary
Yixiao Yang, Enwei Sun, Zhimin Xu, Huashan Zheng, Bin Yang, Rui Zhang, Wenwu Cao
Summary: PbTiO3-based piezoelectric ceramics are crucial for developing electromechanical transducers. This study focuses on co-doping donor and acceptor in Pb(Mg1/3Nb2/3)O-3-30PbTiO(3) ceramics to achieve large piezoelectric coefficient and high mechanical quality factor. By optimizing the composition, the co-doped ceramics exhibit excellent performance with enhanced piezoelectric properties.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Xinya Feng, Zheyi An, Nan Zhang, Shuai Yang, Mingwen Wang, Chao Wang, Yang Li, Xuechen Liu, Fei Li
Summary: This study investigates the lattice parameter fluctuations in relaxor ferroelectric ceramics and non-relaxor ferroelectric ceramics at their respective paraelectric phase using X-ray diffraction. The results show that the lattice parameter fluctuations are much larger in relaxor ferroelectrics, indicating a significant distinction between relaxor ferroelectrics and conventional ferroelectrics in terms of atomic arrangement. Transmission electron microscopy experiments and X-ray scattering-intensity simulations reveal that the large fluctuations of lattice parameter in relaxor ferroelectrics can be attributed to the ordered-disordered arrangement of B-site cations at the nanoscale.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Li Ma, Zhiyi Che, Chao Xu, Zhenyong Cen, Qin Feng, Xiyong Chen, Fujita Toyohisa, Jing-Feng Li, Shujun Zhang, Nengneng Luo
Summary: In this study, a strategy to reduce the consumption of silver and achieve good energy storage properties in silver niobate based ceramics was successfully demonstrated. By co-modifying with sodium and tantalum, a high recoverable energy storage density of 6.5 J/cm3 and a good energy storage efficiency of 78% were achieved in the 40Na-65Ta composition. This work promotes the commercialization potential of relaxor antiferroelectric ceramics for energy storage applications.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Multidisciplinary Sciences
Huajie Luo, Hui Liu, Houbing Huang, Yu Song, Matthew G. Tucker, Zheng Sun, Yonghao Yao, Baitao Gao, Yang Ren, Mingxue Tang, He Qi, Shiqing Deng, Shujun Zhang, Jun Chen
Summary: We propose an innovative strategy based on defect chemistry to achieve a giant strain of 1.12% in lead-free Bi0.5Na0.5TiO3 (BNT)-based ceramics by forming a defect-engineered morphotropic phase boundary. The incorporation of the hypothetical perovskite BaAlO2.5 with oxygen defect into BNT leads to strongly polarized directional defect dipoles, resulting in a strong pinning effect after aging. The large asymmetrical strain is mainly attributed to the aligned defect dipoles along the crystallographic [001] direction destroying the long-range ordering of the ferroelectric and promoting reversible phase transition and polarization rotation.
Article
Engineering, Electrical & Electronic
Lian Cui, Wenwu Cao
Summary: This study investigated the effective coercive field E-c(eff) of [001](c) poled 0.71Pb(Mg1/3Nb2/3)O-3-0.29PbTiO(3) (PMN-0.29PT) single crystals inside an ultrasonic curved array transducer as a function of frequency f from 10 kHz to 4 MHz. The results showed that Eeff c monotonically increased with f in the form of f(beta), reaching more than 6 kV/cm at 4 MHz, which is three times the conventional coercive field. The beta value changed at around 400 kHz due to a transition in domain switching. The study also revealed that the E-c(eff) of PMN-0.29PT single crystals under clamped boundary conditions was larger than that under free boundary conditions, indicating that strain confinement hinders domain switching in ferroelectric crystals. These quantitative results of E-c(eff) versus f provide valuable guidelines for designing high-frequency medical array transducers using PMN-PT single crystals.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Materials Science, Ceramics
Yizhou Xiao, Yuanbo Yang, Shuai Yang, Jinglei Li, Dan Liu, Jie Wu, Mingwen Wang, Chunchun Li, Fei Li
Summary: In this study, a special BaTiO3-0.03Mg-0.02Y-0.02CaZrO(3) ceramic with a high dielectric permittivity of 3000 and the dielectric variation below +/- 13% in the temperature range of -55-150 degrees C was designed and fabricated to meet the requirements of X8R capacitors. Grain size engineering and cation doping techniques were employed to prepare the BaTiO3-based ceramics with fine grains and improved temperature stability. MLCCs fabricated using these high-permittivity BaTiO3-based materials exhibited a high dielectric constant of 2950 and a high breakdown field (410 kV/cm), satisfying the X8R criterion.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Physics, Applied
Shuai Yang, Fenghua Tian, Chunchun Li, Mingwen Wang, Jinjing Zhang, Qingshan Zhu, Jie Wu, Jinglei Li, Xiangyu Gao, Fei Li
Summary: In this work, <001>-oriented Pb(In1/2Nb1/2)O-3-Pb(Sc1/2Nb1/2)O-3-PbTiO3 textured ceramics were fabricated by the template grain growth method. The electromechanical properties of these ceramics under different external fields were characterized and analyzed. The results showed that the dielectric constants of all textured ceramics increased with uniaxial prestress and hydrostatic pressure, but decreased with the increase of d.c. bias electric field. The textured ceramic with 3 vol. % BT templates exhibited the best stability under external fields, with less than 2% change in the electromechanical coupling factors under hydrostatic pressure increase to 100 MPa.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Multidisciplinary Sciences
Jinglei Li, Wanbo Qu, John Daniels, Haijun Wu, Linjing Liu, Jie Wu, Mingwen Wang, Stefano Checchia, Shuai Yang, Haobin Lei, Rui Lv, Yang Zhang, Danyang Wang, Xuexin Li, Xiangdong Ding, Jun Sun, Zhuo Xu, Yunfei Chang, Shujun Zhang, Fei Li
Summary: We developed a seed-passivated texturing process using Ba(Zr, Ti)O3 microplatelet templates to fabricate textured PZT ceramics. This process promotes template-induced grain growth in titanium-rich PZT layers and enables the desired composition through interlayer diffusion of zirconium and titanium. The textured PZT ceramics exhibited excellent properties, with Curie temperatures of 360 degrees 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 overcomes the challenge of fabricating textured rhombohedral PZT ceramics by suppressing the chemical reaction between PZT powder and titanate templates.
Article
Multidisciplinary Sciences
Nengneng Luo, Li Ma, Gengguang Luo, Chao Xu, Lixiang Rao, Zhengu Chen, Zhenyong Cen, Qin Feng, Xiyong Chen, Fujita Toyohisa, Ye Zhu, Jiawang Hong, Jing-Feng Li, Shujun Zhang
Summary: The authors designed NaNbO3 based ceramics to achieve a reversible phase transformation between antiferroelectric and ferroelectric phases, resulting in a well-defined double hysteresis loop in the P-E hysteresis curve. NaNbO3 is a lead-free antiferroelectric material with potential applications in energy storage capacitors, solid-state cooling, and displacement transducers. A new strategy of reducing the oxygen octahedral tilting angle is proposed to stabilize the antiferroelectric phase of NaNbO3, and its effectiveness is confirmed through experimental characterization. The resulting ceramic exhibits highly reversible phase transitions and improved properties compared to pure NaNbO3.
NATURE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Yang Liu, Bingzhong Shen, Lang Bian, Jigong Hao, Bin Yang, Rui Zhang, Wenwu Cao
Summary: This research presents a newly designed lead-free piezoelectric ceramic with enhanced electromechanical performance. The study provides valuable insights for achieving high electromechanical properties in NKN-based ceramics.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Acoustics
Hengli Zhao, Zhaojiang Chen, Guangbin Zheng, Chunying Wang, Wenwu Cao
Summary: The high-field properties of the PIN-PMN-PT single crystal/polymer composites were investigated, and it was found that the composite exhibited superior electromechanical performances under high ac field.
Article
Materials Science, Multidisciplinary
Jinhui Fan, Xiaoyan Lu, Wenwu Cao
Summary: Polarization qualification can be achieved on either a macroscopic or nano/micro scale using various measurement techniques. However, visualizing and quantifying polarization distribution in the micron to millimeter scale remains challenging.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Xinhui Li, Shan He, Yanda Jiang, Jian Wang, Yi Yu, Xiaofei Liu, Feng Zhu, Yimei Xie, Youyong Li, Cheng Ma, Zhonghui Shen, Baowen Li, Yang Shen, Xin Zhang, Shujun Zhang, Ce-Wen Nan
Summary: Polymer nanocomposites with optimized interfacial structures between nanoparticles and polymers can greatly enhance the material properties. In polar polymers, two interfacial layers, namely an inner bound polar layer and an outer polar layer, are observed around nanoparticles. This bilayer structure can significantly enhance the polarity-related properties of polymer nanocomposites.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Wenya Du, Lin Zhang, Emma Suh, Dabin Lin, Colin Marcus, Lara Ozkan, Avani Ahuja, Sara Fernandez, Ikra Iftekhar Shuvo, David Sadat, Weiguo Liu, Fei Li, Anantha P. Chandrakasan, Tolga Ozmen, Canan Dagdeviren
Summary: Researchers developed a wearable, conformable ultrasound breast patch (cUSBr-Patch) that allows standardized and reproducible image acquisition over the entire breast, reducing reliance on operator training and transducer compression. The patch, inspired by nature's honeycomb shape and guided by a user-friendly tracker, enables large-area, deep scanning, and multiangle breast imaging. In vitro studies and clinical trials demonstrated that the piezoelectric crystal-based array (Yb/Bi-PIN-PMN-PT) exhibited sufficient contrast resolution (approximately 3 dB) and axial/lateral resolutions of 0.25/1.0 mm at a depth of 30 mm, enabling the observation of small cysts (approximately 0.3 cm) in the breast. This research introduces a novel ultrasound technology for noninvasive real-time tracking of soft tissue dynamic changes.
