Article
Chemistry, Multidisciplinary
A. R. Imamaliyev, Sh. A. Humbatov
Summary: The influence of different sizes of BaTiO3 particles on the dielectric properties of LCs is investigated. The optimal size for enhancing the performance of LCs is found to be 200nm.
Article
Materials Science, Ceramics
S. A. N. Franca Junior, W. Acchar, S. L. A. Dantas, P. H. Chiberio, H. P. A. Alves, M. R. D. Bomio, F. V. Motta, F. Bohn, A. Ferreira, F. Vaz, M. A. Correa
Summary: We conducted a comprehensive investigation on the high-frequency dielectric properties of (ZrO2)100-x(BaTiO3)x heterostructures. By adjusting the content of BaTiO3, we could modify the dielectric constant of the resulting ceramic sheets. Our results demonstrated successful fabrication of heterostructured ceramic sheets and the ability to tailor the electric, structural, and dielectric properties of both ZrO2 and BaTiO3 materials. Furthermore, the evolution of the dielectric constant could be manipulated according to specific technological applications.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Zun-Peng Feng, Ya-Nan Hao, Jing Qin, Shao-Long Zhong, Ke Bi, Yu Zhao, Li-Juan Yin, Jia-Yao Pei, Zhi-Min Dang
Summary: Large deformability and high sensitivity are achieved simultaneously in a high-performance soft stretchable sensor by incorporating ultrasmall barium titanate nanoparticles (BT NPs) with high permittivity and highly active surfaces and a high-stretchability p(BA-GMA) elastomer matrix. The sensor exhibits high capacitance and sensitivity due to the increased permittivity and capacitance of the composite dielectric material. The BT/p(BA-GMA)-based sensor has excellent stability and reliability, making it suitable for dynamic monitoring applications.
Article
Materials Science, Ceramics
Xiang Niu, Xiaodong Jian, Xianyi Chen, Haoxuan Li, Wei Liang, Yingbang Yao, Tao Tao, Bo Liang, Sheng-Guo Lu
Summary: Doping manganese ions in (BaSr)TiO3 (BST) ceramics can lead to high permittivity and low dielectric losses, improving the performance of the materials. The Ba0.6Sr0.4Mn0.001Ti0.999O3 sample exhibited a maximum electrocaloric effect of 2.75 K in temperature change at approximately 21 degrees C and 50 kV/cm, making it a promising ECE material for practical refrigeration devices operating at room temperature.
JOURNAL OF ADVANCED CERAMICS
(2021)
Article
Materials Science, Ceramics
Kanyapak Silakaew, Ekaphan Swatsitang, Prasit Thongbai
Summary: The dielectric properties of a novel polymer dielectric material were investigated by incorporating conductive RuO2 and high-permittivity nBT into PVDF. The interfacial polarization between RuO2-nBT and RuO2-PVDF interfaces played a critical role in improving the dielectric properties of the composites.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
J. P. Martinez-Perez, A. M. Bolarin-Miro, C. A. Cortes-Escobedo, F. Sanchez-De Jesus
Summary: This study discusses a magnetodielectric coupling observed in barium titanate-cobalt ferrite composites synthesized using high-energy ball milling assisted via a thermal treatment. The results show that the multiferroic composites possess both ferromagnetic and dielectric behaviors, and the composite with a specific composition exhibits a homogeneous matrix-particle composite microstructure.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Applied
X. Wen, G. Yang, Q. Ma, Y. Tian, X. Liu, D. Xue, Q. Deng, S. Shen
Summary: In this study, compositional gradients were introduced into Ba1-xSrxTiO3 systems to enhance the temperature stability of flexoelectric behavior. The improved stability in graded ceramics results from the engineered sequential Curie temperatures of individual layers and the positive correlation between dielectric constant and flexoelectricity, significantly reducing the drastic variations of flexoelectricity at different temperatures.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Xiwen Zhang, Yilv Guo, Zhaobo Zhou, Yunhai Li, Yunfei Chen, Jinlan Wang
Summary: This study proposes a design strategy to enhance ZT values in two-dimensional thermoelectric materials and successfully predicts a new class of 2D room-temperature TE materials, BiBi2X3, with ultra-high ZT values. This design strategy is of vital importance for advanced TE technology.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Shadeeb Hossain
Summary: Finite element analysis was used to quantitatively determine the influence of external applied stress on the surface potential and polarization effect of both poled and unpoled BaTiO3. The simulation verified that poled BaTiO3 is approximately 1.5 times more responsive to applied stress, and the maximum surface potential is generated when stress is applied parallel to the direction of the electric dipole.
Article
Polymer Science
Shang Ke Yang, Zhao Xin Zhang, Ai Ping Zhang, Hai Lan Lin, Xun Tao Zhang, Liu Xin Xiao, Jun Bian, Dai Qiang Chen
Summary: This study employed PVP@BT nanoparticles as functional nanofillers to fill PI matrix and fabricated PI nanocomposite films. The results showed that the addition of PVP@BT nanoparticles enhanced the molecular weight, viscosity, and dispersion of the nanocomposite films, leading to improved dielectric properties. The nanocomposite films with 10 wt% PVP@BT nanoparticles exhibited a higher dielectric constant and lower dielectric loss compared to pure PI. Additionally, both pure PI and PI nanocomposite films showed excellent thermal stability.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Review
Nanoscience & Nanotechnology
Peitao Xie, Zhicheng Shi, Mei Feng, Kai Sun, Yao Liu, Kelan Yan, Chunzhao Liu, Tarek A. A. Moussa, Meina Huang, Shuwei Meng, Gemeng Liang, Hua Hou, Runhua Fan, Zhanhu Guo
Summary: Dielectric constant is a physical parameter that determines the response of materials to electromagnetic waves or electrical field. Negative dielectric property, a key for constructing metamaterials, has unique electromagnetic properties. Recent advances have demonstrated the feasibility of achieving negative dielectric property in heterogeneous composites.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Ankur Sood, Margaux Desseigne, Atul Dev, Lionel Maurizi, Anuj Kumar, Nadine Millot, Sung Soo Han
Summary: Stimulating cells with electrical cues is an important method to interact with biological systems, and it has been widely used in clinical practices for various pathological ailments. Among the piezoelectric materials, colloidal perovskite barium titanate (BaTiO3) has gained substantial interest due to its high dielectric constant, excellent ferroelectric properties, and acceptable biocompatibility. BaTiO3 nanoparticles (BaTiO3 NPs) have shown great potential in biomedical applications and wearable bioelectronics, making them a promising platform for personal healthcare. This review discusses the nanostructured piezoelectric bio interface of BaTiO3 NPs in applications such as drug delivery, tissue engineering, bioimaging, bioelectronics, and wearable devices, with emphasis on the fabrication methods and surface modifications of BaTiO3 NPs. It highlights the utility of BaTiO3 NPs as active devices and their potential in the field of nanomedicine for biomedical applications.
Article
Materials Science, Ceramics
Matthew Jun -Hui Reavley, Huilu Guo, Jianming Yuan, Andrew Yun Ru Ng, Terence Yan King Ho, Hui Teng Tan, Zehui Du, Chee Lip Gan
Summary: The application of the Ultrafast High-temperature Sintering (UHS) technique for the rapid densification of barium titanate ceramics is explored. The presence of oxygen vacancies and its associated phases are found to play important roles in the densification process and sample discoloration.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Engineering, Environmental
Yang Li, Yi Liu, Mingyang Tang, Jingwen Lv, Fukang Chen, Quan Li, Yan Yan, Fei Wu, Li Jin, Gang Liu
Summary: A two-step strategy has been proposed in this study to enhance the energy storing performance of lead-free ferroelectric ceramics, which includes adjusting the ratio of chemical elements and optimizing the preparation process, and has been proven to significantly improve the energy storage performance, especially achieving superhigh energy storage density for a new ceramic material under high electric field.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Jun Zhang, Haidong Chen, Huibing Chen, Haitian Zhou, Wenquan Che, Quan Xue
Summary: A novel method for measuring anisotropic dielectric permittivity is proposed in this article, using a dual-mode system and the NRW method for excitation, which allows for one-time measurement without moving the material. By designing key components and setting up the measurement system, the experimental results demonstrate that this method is an effective and accurate solution for measuring the permittivity of anisotropic materials.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Correction
Materials Science, Multidisciplinary
Xin Song, Tianyu Ma, Xianglong Zhou, Fan Ye, Tao Yuan, Jingdong Wang, Ming Yue, Feng Liu, Xiaobing Ren
Article
Materials Science, Multidisciplinary
Minxia Fang, Fanghua Tian, Kaiyan Cao, Xiaoqin Ke, Yin Zhang, Sen Yang, Wenliang Zuo, Yao Liu, Tianyu Ma, Xiaoping Song, Yuanchao Ji, Xiaobing Ren
Summary: Magnetic refrigeration technique based on magnetocaloric effect is of interest due to its high energy-converting efficiency and environmental friendliness. In this study, a combination of large |4S| (40 J kg(-1)1K(-1)) and large |4Tad| (15 K) under 5 T around room temperature was achieved in Ni-Mn-In Heusler alloys. The excellent combination occurred near the co-occurrence point of martensitic and ferromagnetic transitions. The magnetocaloric properties can be understood by analyzing the free energy barrier and the temperature range of field induced magnetic transition near the co-occurrence point.
Article
Chemistry, Multidisciplinary
Xinghao Hu, Jingjing Jia, Yingming Wang, Xintian Tang, Shaoli Fang, Yilun Wang, Ray H. Baughman, Jianning Ding
Summary: A fast thermally powered sheath-driven yarn muscle using a hybrid CNT sheath and an inexpensive polymer core has been reported. Compared to traditional muscles, the stroke recovery rate of this yarn muscle is lower, but it has higher mechanical power during the full contraction cycle.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Computer Science, Information Systems
Abha Singh, Abhishek Sharma, Shailendra Rajput, Amarnath Bose, Xinghao Hu
Summary: This paper presents a comprehensive investigation of hybrid PSO algorithms for the parameter assessment of PV cells. It explores the potential for future improvements in this strategy. The algorithms are compared based on objective function, diode model, irradiation conditions, and panel types. Additionally, a qualitative analysis of algorithms is conducted considering computational time, computational complexity, convergence rate, search technique, merits, and demerits.
Article
Materials Science, Ceramics
Zhonghua Dai, Shengbin Wang, Yong Liu, Fanbo Zhang, Weiguo Liu, Xin Zhao, Xiangdong Ding, Minxia Fang, Xiaobing Ren
Summary: In this study, by introducing SrSc0.5Nb0.5O3 into (Bi0.5Na0.5Ti0.95Al0.025Nb0.025O3) [(1-x)BNTA-xSSN], a high recoverable energy storage density (W-rec) of about 2.7 J/cm(3) and energy storage efficiency (eta) of approximately 76% at 210 kV/cm were achieved at x=0.1; furthermore, eta was further improved to 85% at x=0.2. The modified .9BNTA-.1SSN showed excellent stability (thermal and frequency stability) at 150 kV/cm, surpassing other lead-free ceramics. The enhanced energy storage performance is attributed to increased relaxation degree and the formation of ferroelectric nanodomains, while the improved E-b is due to increased electrical resistivity and decreased grain size.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Liqiang He, Yang Yang, Chang Liu, Yuanchao Ji, Xiaojie Lou, Lixue Zhang, Xiaobing Ren
Summary: To achieve efficient and high-density energy storage in electrostatic capacitors, dielectric materials need to exhibit good performance over a wide temperature range. In this study, a crossover composition between antiferroelectric and relaxor antiferroelectric states is found to enable a high polarization change and low hysteresis. This leads to the development of lead-free Ag1-3xLaxNb0.9Ta0.1O3 (x=0.03) ceramics that demonstrate a large recoverable energy storage density (Wrec -8.6 J/cm3) with high efficiency (eta -85%) under 460 kV/cm. The x=0.03 ceramics also show excellent energy storage properties (Wrec > 6.8 J/cm3 with ultrahigh eta -90%) in the temperature range of 20-120 degrees C, thanks to the coexistence of micro- and nano-antiferroelectric domains.
Article
Materials Science, Multidisciplinary
Xiaoqin Ke, Dong Wang, Sen Yang, Xiaobing Ren, Yunzhi Wang
Summary: We report that the single domain generated from the vortex in ferroelectric nanodots will transform back to the vortex structure after removal of the external electric field, providing a large recoverable electrostrain. This recoverable electrostrain maintains a large value and a wide temperature range. The good recoverability is mainly attributed to the dipole-dipole interaction energy and the elastic interaction energy in the system. This work may contribute to the development of miniaturized actuators in MEMS or NEMS.
Review
Chemistry, Multidisciplinary
Xinghao Hu, Xianfu Bao, Mengmeng Zhang, Shaoli Fang, Kangyu Liu, Jian Wang, Runmin Liu, Shi Hyeong Kim, Ray H. Baughman, Jianning Ding
Summary: There has been considerable interest in technologies that generate electricity from ambient energy as a sustainable solution to the energy crisis. One driving force behind the search for new energy-harvesting technologies is the desire to power sensor networks and portable devices without batteries. Various energy harvesting technologies, including carbon nanotubes, have been extensively studied. However, further development in this field requires a deeper understanding of the mechanisms and improved electrical outputs for wider applications.
ADVANCED MATERIALS
(2023)
Article
Engineering, Multidisciplinary
Xinghao Hu, Runmin Liu, Kai Zhao, Yilun Wang, Xianfu Bao, Lin Xu, Guanggui Cheng, Jianning Ding
Summary: An inexpensive Twisted and Coiled Polymer artificial muscle (TCP) that can perform large isobaric and isometric contractions is reported. It has potential applications in robotics, grippers, and exoskeletons.
JOURNAL OF BIONIC ENGINEERING
(2023)
Article
Physics, Multidisciplinary
Minxia Fang, Yuanchao Ji, Yan Ni, Wenjia Wang, Hengmin Zhang, Xifei Wang, Andong Xiao, Tianyu Ma, Sen Yang, Xiaobing Ren
Summary: In this letter, researchers report a surprising low-temperature toughening phenomenon in a La-doped CaTiO3 perovskite ceramic. The fracture toughness of the ceramic increases by 2.5 times when cooling from above room temperature down to cryogenic temperature, due to the emergence of nanosized orthorhombic ferroelastic domains from the existing tetragonal ferroelastic matrix. This finding may lead to the design of tough ceramics with a wide temperature range and provide insights into reentrant transitions in other ferroic systems.
PHYSICAL REVIEW LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Ming Wu, Yu Yan, Yanan Xiao, Yongbin Liu, Huaqiang Li, Lisheng Zhong, Xiaojie Lou, Jinghui Gao
Summary: In this study, a flexible sensor was fabricated by depositing a Pb(Zr-0.52, Ti-0.48)O-3 thin film on a mica substrate, and it successfully detected the acoustic emission generated by the partial discharge of a 110 kV power cable. The flexible sensor, designed with an electromagnetic shielding structure, showed a relatively flat response in the frequency range of 100 to 1000 kHz with a sensitivity over 47.5 dB, which is beneficial for pattern recognition studies of acoustic emission. This work not only provides a flexible, anti-electromagnetic interference, and broadband sensor for acoustic emission detection, but also promotes the development and application of flexible ferroelectric materials.
Article
Engineering, Electrical & Electronic
Yongbin Liu, Qi Liu, Zhengwei Liu, Ming Wu, Xiaojie Lou, Jinghui Gao, Lisheng Zhong
Summary: Polymer composites typically exhibit high energy storage performance, but their thermal aging behavior is still puzzling. This study investigates the local phase separation phenomenon of a typical energy storage polymer blend PVDF/PMMA during thermal aging and discovers a reduction in dielectric properties. Further research suggests that the local phase separation of PVDF and PMMA in amorphous regions due to recrystallization may be responsible for the variation in dielectric properties.
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
(2023)
Article
Engineering, Multidisciplinary
Hongwei Hu, Shengtao Zhang, Yan Li, Xinghao Hu, Lin Xu, Aixin Feng, Guanggui Cheng, Jianning Ding
Summary: Electrochemical actuators based on conductive polymers are competitive in the field of soft actuators due to their flexible nature, low cost, low operating voltage, and air-working ability. Adding electroactive materials like CNT and graphene can improve their actuation performance. However, their output strains are generally lower than 1%, limiting their applications in various scenarios.
JOURNAL OF BIONIC ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Xinghao Hu, Hong Li, Jian Wang, Xianfu Bao, Kai Zhao, Jiangtao Di, Yiming Liang, Jianning Ding
Summary: This article introduces a low-cost carbon fiber artificial muscle and demonstrates its potential applications through solvent absorption, electrothermal, and photothermal driving.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Yunyun Song, Jialei Yang, Xu Zhang, Zhongqiang Zhang, Xinghao Hu, Guanggui Cheng, Yan Liu, Guojun Lv, Jianning Ding
Summary: The use of temperature-responsive wettability allows for the fast and unidirectional movement of large droplets, and the design of temperature-responsive smart patterns further enables controlled droplet motion and antibacterial treatment.
MICROSYSTEMS & NANOENGINEERING
(2023)