Article
Chemistry, Multidisciplinary
Gaokuo Zhong, Feng An, Ke Qu, Yongqi Dong, Zhenzhong Yang, Liyufen Dai, Shuhong Xie, Rong Huang, Zhenlin Luo, Jiangyu Li
Summary: The study has successfully developed flexible materials with robust multiferroic properties at room temperature, demonstrating piezoelectricity and ferromagnetism simultaneously, which have the potential for various practical applications.
Article
Physics, Multidisciplinary
Vinyas Mahesh, Vishwas Mahesh, Sriram Mukunda, Dineshkumar Harursampath
Summary: This study examines the influence of various micro-topological textures of Barium Titanate and Cobalt Ferrite composites on the nonlinear dynamic response of blast loaded magneto-electro-elastic plates in a temperature environment. The novelty lies in considering the influence of pyrocoupling associated with the micro-topological textures. Different forms of micro-topological textures are evaluated, and the governing equations are developed using finite element methods and solved using the direct iterative technique. The numerical examples demonstrate the impact of micro-topological textures, electromagnetic circuits, coupling effects, and blast loading parameters on the nonlinear dynamic response.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Physics, Applied
Donghoon Kim, Marta D. Rossell, Marco Campanini, Rolf Erni, Josep Puigmarti-Luis, Xiang-Zhong Chen, Salvador Pane
Summary: The magnetoelectric effect in ME composites originates from the coupling between ferroelectric and ferromagnetic components, with substrate clamping diminishing the effect. By using fabrication techniques to control substrate clamping, enhanced ME coupling was observed in micro-patterned bilayer thin films compared to the original films. Site-dependent ME coupling within the microstructure was also observed, with larger coupling near the edge of the microstructure attributed to non-uniform substrate clamping and strain gradients in the BTO layer.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Venkata Sreenivas (Narayanabhatla) Puli, Dhiren K. Pradhan, Albert Hilton, Ram S. Katiyar, Kartik Ghosh, Gopalan Srinivasan, Amber N. Reed, Michael E. McConney, Susan Heidger
Summary: A study on the ferroelectric, ferromagnetic, and magnetoelectric coupling properties of BaTiO3/CoFe2O4/BaTiO3 (BTO/CFO/BTO) heterostructured films was conducted. High-quality polycrystalline films were obtained through thermal annealing, and the coexistence of perovskite BTO and spinel CFO phases in the heterostructures was confirmed by X-ray diffraction. The ferroelectric nature of BTO and the ferrimagnetic nature of CFO were also confirmed by piezoresponse force microscopy and magnetic force microscopy measurements. These nanostructures exhibited high saturation polarization and saturation magnetization, as well as strong magnetoelectric coupling under bias magnetic field and frequency conditions, making them potential candidates for multifunctional applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Chemistry, Physical
Zedong Hu, Juanjuan Lu, Hongyi Dou, Jianan Shen, James P. Barnard, Juncheng Liu, Xinghang Zhang, Haiyan Wang
Summary: In this work, a unique anodic aluminum oxide (AAO) template was used to grow a thin Co seed layer and the following self-assembled metal-oxide (Co-BaTiO3) vertically aligned nanocomposite thin film layer. The researchers observed significant magnetic anisotropy and strong magneto-optical coupling properties, and successfully achieved the fabrication of high density perpendicular magnetic tunneling junction (p-MTJ). They also discovered a strong polar magneto-optical Kerr effect (MOKE), which inspires a novel optical-based reading method of the MTJ states.
Article
Chemistry, Physical
Min Zhang, Chaoyong Deng
Summary: The evolution of dynamic hysteresis with electrical field amplitude and frequency in BTO single crystal films prepared by PLD was systematically investigated. A noticeable transition from low-frequency to high-frequency behavior was observed, with domain motion frequency dependence identified as the cause of the dynamic hysteresis loop scaling behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Yilin Wang, Linxing Zhang, Jiaou Wang, Qiang Li, Huanhua Wang, Lin Gu, Jun Chen, Jinxia Deng, Kun Lin, Ling Huang, Xianran Xing
Summary: A promoted chemical pressure route has been utilized to prepare high-performance BaTiO3 films, achieving the highest remanent polarization and high Curie temperature. The negative chemical pressure imposed during the process significantly enhances the bonding states and contributes to the improved polarization.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Materials Science, Ceramics
Alireza Ramezani, Hossein Abdizadeh, Mohammad Reza Golobostanfard
Summary: BaTiO3 and SrTiO3 thin films and BaTiO3/SrTiO3 lamellar composites were successfully synthesized using the sol-gel spin-coating method in this study. The morphology and band gap of the composite samples could be altered by changing the periodicity of the samples. The optical properties of the multi-stacked composites, including dielectric constant, dielectric loss, impedance, Urbach tail, extinction coefficient, and electric modulus, were also investigated.
CERAMICS INTERNATIONAL
(2021)
Article
Multidisciplinary Sciences
Peiliu Li, Xianfu Huang, Ya-Pu Zhao
Summary: Thin films are widely used functional materials. Researchers have developed an electro-capillary peeling strategy that achieves nondestructive detachment of thin films by applying electric fields, reducing film deformation. This method has a wide range of applications for various films.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Peiliu Li, Xianfu Huang, Ya-Pu Zhao
Summary: In this study, an electro-capillary peeling strategy was developed to achieve thin film detachment by driving liquid to percolate and spread into the bonding layer. This method significantly reduced deformation and strain of the film compared to traditional methods. The approach showed active control capabilities and was suitable for a broad range of films.
NATURE COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Guiyun Sun, Huan Li, Siqi Zhong, Chen Chen, Keju Ren, Zhixin Zeng, Xiaoling Deng, Rongli Gao, Wei Cai, Chunlin Fu, Gang Chen, Zhenhua Wang, Xiang Lei
Summary: This paper investigated the crystal structure, surface morphology, electrical properties, magnetic properties, photovoltaic properties, as well as magnetic and photoelectric coupling properties of the BFO/CFO composite films. The results showed the influence of composition on these properties.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Xinyan Yang, Junqing Leng, Cheng Sun, Sinan Keten
Summary: Magneto-elastic materials with shape programmability, adaptive stiffness, and tunable strength are crucial for advances in structural and robotic materials. We present a novel design for elastic bars with permanent fixed dipole magnets, which can self-assemble into magneto-elastic networks under random vibrations. The orientation of end dipoles determines the self-assembled network topology, which can range from quasi-ordered lattices to stacks or strings of particles. This work establishes design criteria for stable lightweight 2D networks and paves the way for self-assembled and repaired structural materials with random vibrations, expanding the applications of magneto-elastic soft materials.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Physics, Applied
F. Choueikani, D. Jamon, S. Neveu, M. -F. Blanc-Mignon, Y. Lefkir, F. Royer
Summary: Composite thin films containing cobalt ferrite nanoparticles embedded in a silica/zirconia sol-gel matrix demonstrate excellent magneto-optical properties and stable guiding layer characteristics, with the potential for self-biased behavior based on nanoparticle size. The application of a magnetic field during coating enhances the magneto-optical effect, reduces birefringence, and achieves phase matching for guided modes, providing a method to adjust crucial parameters in magneto-optical devices.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Yu Cao, Nour Al Meselmene, Elhadj Dogheche, Ping Yang, Parikshit Moitra, Shi Qiang LI, Thirumalai Venkatesan, Aaron Danner
Summary: We experimentally characterized the DC electro-optic coefficients r(13), r(23), and r(33) in thin film single crystalline BaTiO3 on DyScO3. The BaTiO3 thin film, epitaxially grown, was sandwiched between a SrRuO3 bottom electrode and an indium tin oxide (ITO) top electrode. The DC electro-optic coefficients r(13), r(23), and r(33) of the BaTiO3 thin film were characterized using the prism coupling method at 636.6 nm, and the results are r(13) = 4.2 pm/V, r(23) = 4.6 pm/V, and r(33) = 9.0 pm/V.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Nanoscience & Nanotechnology
Zhanhua Chen, Shihui Qin, Jiaoying Jin, Yanzhao Wang, Zhen Li, Jiye Luo, Hongfeng Huang, Lei Wang, Danqing Liu
Summary: Conjugated polymers are attracting attention for thermoelectric applications due to their diversity and low thermal conductivity. Modulating charge carrier concentration and improving power factor can be achieved by modifying the substrate with self-assembled monolayers.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Ahsan Ali, Shehzad Ahmed, Junaid-ur Rehman, Muhammad Raies Abdullah, Hao-Bin Chen, Baolin Guo, Yaodong Yang
Summary: The quaternary Cu2BaSnS4 quantum dots exhibit efficient photocatalysis in the visible light region for degradation of organic contaminants. The optimized composition with Ba = 0.6 shows a bandgap of 2.6 eV, enabling significant degradation of pollutants. The large surface area and reactive oxygen species of CBTS make it capable of disinfecting large amounts of bacteria strains, indicating its potential in photoelectrochemical, photovoltaic, and biological applications.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Yuting Wang, Junning Li, Ruihao Yuan, Hongcheng Gao, Jing Lv, Dezhen Xue, Xihong Hao, Yaodong Yang, Turab Lookman, Brahim Dkhil, Xiaojie Lou
Summary: In this study, CuO additive was introduced to lead-free BaSn0.11Ti0.89O3 (BST) ferroelectric ceramic, resulting in a significantly large adiabatic temperature change under a relatively low electric field. This work demonstrates the potential for enhancing the electrocaloric effect by tuning the intrinsic properties of EC materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Min Gao, Yaodong Yang, Wei-Feng Rao, D. Viehland
Summary: ME VANs, self-assembled from piezoelectric perovskite and magnetostrictive spinel phases, exhibit unique pillar-array-like morphologies and enhanced ME properties, offering potential applications in microelectronics. The microstructure formation mechanisms of ME VANs have been explored through phase field simulations, along with effective approaches to modify and improve ME properties discussed. Potential applications include field tunable adaptive microelectronics and multistate memory devices.
Article
Engineering, Environmental
Bian Yang, Haobin Chen, Yaodong Yang, Lei Wang, Jihong Bian, Qida Liu, Xiaojie Lou
Summary: By modifying with the PVP surfactant, the ferroelectric material SBT-0.3 exhibits enhanced performance in collecting energy sources from mechanical friction and temperature fluctuation to promote water recovery efficiency. The combination of permanent polarization and piezo-/pyro-potential in SBT-0.3 reduces charge recombination, aids in the reaction with active oxygen to breakdown organic molecules, and improves water purification efficiency.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Jinxu Du, Haobin Chen, Yaodong Yang, Wei-Feng Rao
Summary: This study demonstrates the relationship between the output, physical parameters, and working frequency of piezoelectric materials in vibration energy harvest systems through experimental data and machine learning algorithms. It provides assistance in designing efficient energy harvest systems.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Bian Yang, Jiayu Zhang, Xiaojie Lou, Yangfei Gao, Peng Shi, Yaodong Yang, Man Yang, Jie Cui, Lingling Wei, Shaodong Sun
Summary: In this study, a lead-free Sb-modified tungsten bronze ceramic was designed and fabricated to enhance the relaxor characteristics. The incorporation of Sb induced structural distortion and order-disorder distribution, resulting in improved breakdown strength and remarkable energy storage performance at high power and current density.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Mingyuan Wang, Yaodong Yang, Enkai Dai, Wei-Feng Rao
Summary: This study proposes a method of converting human body actions into electrical energy via a ball impact piezoelectric energy converter, and optimizes its performance using an artificial neural network model. Treadmill experiments verify the prediction results of the model and demonstrate an effective voltage of 11.3 V.
Article
Chemistry, Multidisciplinary
Yajing Wang, Yaodong Yang, Shuaipeng Suo, Mingyuan Wang, Weifeng Rao
Summary: This paper proposes a demonstration of using a high-throughput blockchain to store the fingerprints of 3D models and verify them before printing, in order to prevent illegal tampering. The combination of blockchain and 3D printing ensures the security of the models and the credibility of the terminal components, and enables a more flexible manufacturing for future industry.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Ceramics
Jindong Dou, Junjie Li, Jianting Li, Hui Zhang, Yaodong Yang, Yang Bai, Wei-Feng Rao
Summary: In this study, a self-actuating dual cooling cycle system was proposed, combining the positive and negative electrocaloric effects (ECE) and electrostrain (ES) in a 0.7 Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 (PMN-30PT) single crystal. It was found that a suitable reverse electric field can generate negative ECE and ES simultaneously, enhancing the cooling capacity of the system. The optimal reverse electric field (-Eop) can improve the total ECE and ES by 31% and 17% respectively.
CERAMICS INTERNATIONAL
(2023)
Review
Chemistry, Multidisciplinary
Ahsan Ali, Longbin Chen, Muhammad Salman Nasir, Chao Wu, Baolin Guo, Yaodong Yang
Summary: This article reviews an overlooked method, piezocatalysis, for degrading organic pollutants and inhibiting bacteria. Recent research has shown significant progress in the properties of piezoelectric materials, allowing for efficient charge carrier generation and fast reactions mediated by reactive oxygen species. The paper discusses the properties of piezoelectric materials, methods for water treatment, and the piezocatalytic mechanism with a focus on charge generation, cavitation, and bacterial inactivation by reactive oxygen species. Applications for dye and pathogenic bacteria removal are also presented.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Bian Yang, Yangfei Gao, Xiaojie Lou, Yaodong Yang, Yanhua Hu, Guojun Zhang, Shaodong Sun
Summary: Simultaneously integrating outstanding energy storage performance and good temperature stability in advanced ferroelectrics is a promising strategy to boost the practical application for next-generation high-temperature pulse devices. However, these constraints cannot happen hand-in-hand, and the realization of high-performance dielectric capacitors always comes at the expense of high-temperature tolerance due to thermal breakdown, leading to that the trade-off relationship as above mentioned was not substantially relieved in perovskite relaxor materials.
ENERGY STORAGE MATERIALS
(2023)
Article
Engineering, Chemical
Longbin Chen, Pengqi Hai, Yaodong Yang, Chao Wu, Yongming Hu, Wei-Feng Rao
Summary: Combining metal with ferroelectrics is an effective strategy to significantly improve the photocatalytic water splitting efficiency of ferroelectrics. In this study, we fabricated SrBi4Ti4O15 (SBTO) nanosheets and deposited different quantities of Pt nanoparticles to form heterojunctions, aiming to find the optimal Pt loading ratio. The optoelectronic characterizations confirmed that the Pt-modified SBTO nanosheets exhibited broadened absorption of visible light and generated more long-lived charge carriers. The photocatalytic hydrogen production reached 11700 μmol g(-1) with continuous illumination for 3 hours from the sample containing 6 wt% Pt, which demonstrated a much higher hydrogen evolution rate compared to other ferroelectric materials in similar reaction systems. Our work provides a valuable and feasible solution for hydrogen production from water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Xuhan Lv, Yaodong Yang, Dongcai Zhang, Ziliang Wang, Kailin Li, Weifeng Rao
Summary: To solve the mismatch between external excitation and the resonant frequency of a harvester, a ratchet spring structure is designed to capture waves from a wide range of frequencies (1-19.7 Hz) and convert them into the resonant frequency of cantilevers. This energy harvester effectively alleviates hazardous problems caused by sudden changes in wave frequency and shows promising potential to power marine sensors, with a good power output (19.44 mW). Advanced design tools, including artificial neural network algorithms, were used for parameter optimization.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Liang Wang, Jindong Dou, Yaodong Yang, Jianting Li, Wei-Feng Rao
Summary: Sonocatalysis is attracting much attention for its ability to completely decompose organic matter without causing secondary contamination, but there are still differing opinions on the factors influencing sonocatalysis. The role of the piezoelectric coefficient in the sonocatalytic process needs to be clarified. In order to understand the influence of the piezoelectric coefficient, experiments were conducted using Na0.5Bi0.5TiO3-xSrTiO3 (NBT-xST, 0.20 <= x <= 0.30) with different piezoelectric coefficients and different phase states (ferroelectric phase/relaxor). The results showed a significant correlation between the piezoelectric coefficient and the catalytic performance in the ferroelectric phase, but more influencing factors need to be considered in the relaxor region.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Bian Yang, Jiayu Zhang, Xiaojie Lou, Yangfei Gao, Peng Shi, Yaodong Yang, Man Yang, Jie Cui, Lingling Wei, Shaodong Sun
Summary: A lead-free tungsten bronze ceramic material was designed and fabricated with enhanced relaxor characteristics using a B-site engineering strategy. It exhibited superior comprehensive performance and stability.
ACS APPLIED MATERIALS & INTERFACES
(2022)