A5109293587- Advancements in Battery Materials
- Multiferroics and related materials
- Transition Metal Oxide Nanomaterials
- Ferroelectric and Piezoelectric Materials
- Ga2O3 and related materials
- ZnO doping and properties
- X-ray Diffraction in Crystallography
- Advanced Battery Materials and Technologies
- Advanced battery technologies research
- Photonic and Optical Devices
- Photorefractive and Nonlinear Optics
- Photonic Crystals and Applications
- Acoustic Wave Resonator Technologies
- High-pressure geophysics and materials
- Nanopore and Nanochannel Transport Studies
- Medical Imaging Techniques and Applications
- Crystallography and Radiation Phenomena
- Copper-based nanomaterials and applications
- Machine Learning in Materials Science
- Carbon Nanotubes in Composites
- Catalytic Processes in Materials Science
- Advanced Electron Microscopy Techniques and Applications
- Thermodynamic and Structural Properties of Metals and Alloys
- Advanced Photocatalysis Techniques
- Dielectric properties of ceramics
Shanghai Advanced Research Institute
2022-2025
Chinese Academy of Sciences
2010-2025
Shanghai Institute of Applied Physics
2010-2025
Shanghai Synchrotron Radiation Facility
2022-2024
Sun Yat-sen University
2024
Advanced Research Institute
2023
National Synchrotron Radiation Laboratory
2022
Institute of Physics
2000
The structural origin of enhanced piezoelectric performance and stability in KNN-based ceramics can be attributed to the hierarchical nanodomain architecture with phase coexistence.
Abstract Electric field-induced second harmonic generation allows electrically controlling nonlinear light-matter interactions crucial for emerging integrated photonics applications. Despite its wide presence in materials, the figures-of-merit of electric are yet to be elevated enable novel device functionalities. Here, we show that polar skyrmions, a topological phase spontaneously formed PbTiO 3 /SrTiO ferroelectric superlattices, exhibit high comprehensive performance. The second-order...
Abstract Mechanism of metal-insulator transition (MIT) in strained VO 2 thin films is very complicated and incompletely understood despite three scenarios with potential explanations including electronic correlation (Mott mechanism), structural transformation (Peierls theory) collaborative Mott-Peierls transition. Herein, we have decoupled coactions phase transitions across the MIT by implementing epitaxial strain on 13-nm-thick (001)-VO comparison to thicker films. The evolution during...
Aqueous zinc batteries (ZIBs) have attracted considerable attention in recent years because of their high safety and eco-friendly features. Numerous studies shown that adding Mn2+ salts to ZnSO4 electrolytes enhanced overall energy densities extended the cycling life Zn/MnO2 batteries. It is commonly believed additives electrolyte inhibit dissolution MnO2 cathode. To better understand role additives, ZIB using a Co3 O4 cathode instead 0.3 m MnSO4 + 3 built avoid interference from As...
Further unleashing the full potential of YBa2Cu3O7−x (YBCO), a premier high-temperature superconductor, for devices in advanced communication technologies hinges on refinement its fabrication process. In this work, synchrotron three-dimension reciprocal space mapping (3D-RSM) technique, which offers larger Q-space range and higher spatial resolution, was developed used to analyze YBCO films grown (001)-oriented LAO, STO, MgO substrates. The 3D-RSM results reveal that epitaxial c domains...
Acidic batteries permit a reliable energy supply at low temperatures with cost and intrinsic safety, yet the development of stable acid-resistant electrodes high capacity lifespan is still challenging. Herein, nonstoichiometric copper telluride (Cu2-xTe) nanosheets are first explored as high-performance for acidic to provide release 409 mAh g-1 record-breaking 40 000 cycles excellent kinetics, enabling operation current density 20 A g-1. In contrast inherent perception corrosive destruction...
A controllable metal–insulator transition (MIT) of VO2 has been highly desired due to its huge potential applications in memory storage, smart windows or optical switching devices. Recently, interfacial strain engineering recognized as an effective approach tuning the MIT epitaxial films. However, strain-involved structural evolution during process is still not clear, which prevents comprehensively understanding and utilizing In this work, we have systematically studied thick films grown on...
We confirmed the EPT in KNN-based ceramics through experiment and theory, found it could play a positive role piezoelectricity.
Aqueous Zinc Batteries In article number 2301770, Yueliang Gu, Xiaochuan Ren, Daming Zhu, Jianxin Zou, and co-workers elucidate the reaction mechanism of Mn2+ electrolyte additives in aqueous zinc batteries (ZIBs) via operando synchrotron X-ray diffraction, ex situ absorption spectroscopy electrochemical analyses. A reversible Mn2+/MnO2 deposition/dissolution occurred at cathode, which change environment enabled Zn2+/Zn4SO4(OH)6•5H2O deposition/dissolution. The chemical contributes no...
A facile usage of a MYTHEN 1K detector with Huber 5021 six-circle diffractometer is described in detail. mechanical support has been custom designed for the first time to combine point detector, which can be used as reference each individual pixel during measurements. The mounted on arm 2θ circle an intrinsic angular resolution ∼0.0038°, and its pitch angle automatically adjusted accuracy 0.0072°. Standard procedures are discussed calibration. Programs have written SPEC environment...
With increasing film thickness of the epitaxial ${\text{BiFeO}}_{3}$ (001) films deposited on ${\text{SrTiO}}_{3}$ substrates from 30 to 720 nm, crystal structure evolutes a fully strained tetragonal lattice partially relaxed monoclinic one with rotated twins. Although mismatch strain results in significant distortion and twinning evolution, polarization does not show direct correlation strain. Instead, there is strong dependence body diagonal length distorted pseudocubic unit cell. The...
An empirical method is proposed for partially correcting the distortion of electron diffraction intensity caused by Ewald-sphere curvature, crystal bending, thickness inhomogeneity etc. The based on combination and high-resolution microscopy. It has been tested with a high-temperature superconducting oxide YBa2Cu3O7−x shown to be effective.
BiFeO3 and Bi0.95Ce0.05FeO3 were synthesized via a coprecipitation technique. During the synthesis process, phase transitions monitored in situ synchrotron X-ray diffraction (XRD). The Ce addition increased formation temperature of phase, while greatly suppressed particle size growth. Ce0.05Bi0.95FeO3 was further employed for lithium battery application, good electrochemical cycling performance observed between 1.15 3.0 V. not only discharge capacity but also displayed 0.15 V higher voltage...
Since pioneering work performed by Rouxel et al. that emphasizes the effects of anions in ionic intercalation process, role oxygen ions lithium battery electrodes is great interest since it will give new directions to further enhance capacity. In this paper, Bi2Fe4O9–CeO2 was synthesized and used as an anode for second batteries application. A large amount vacancies exist both CeO2 Bi2Fe4O9. CeO2, are mainly located at 111 plane, Bi2Fe4O9, 002 plane. Li+ insertion into Bi2Fe4O9 produced high...
Abstract Invar alloys with zero thermal expansion (ZTE), isotropy, high operation temperature, and wide temperature range are of great significance in fields such as aerospace modern industry. However, it is difficult to simultaneously meet the above characteristics one material. The traditional methods like element or vacancies doping would increase but at expense ZTE behavior. Here, by coherent coupling between two cubic phases, isotropic metallic material higher cut‐off (560 K) a (Δ T =...
As a prototype of strongly correlated electron system, bulk vanadium dioxide (VO 2 ) exhibits large and reversible metal–insulator transition (MIT) near 340 K, concomitantly accompanied by monoclinic–rutile structural phase transformation (SPT). In this study, we systematically investigated the SPT across MIT in (010)-VO /(0001)-Al O 3 epitaxial thin film simultaneously determining three lattice constants ( , b c mismatch angle Δβ using high-resolution X-ray diffraction. The were...
During the data collection of x-ray diffraction experiments with various detectors, background signals are often unavoidable along sample signal. Addressing during post-data analysis is not a straightforward task. In this work, we introduced an algorithm specifically designed to handle centrally symmetric two-dimensional and processed using Python programming language. The first transformed from Cartesian coordinates polar coordinates. Second, utilizing existing processing algorithms,...
Urban growth is increasingly shifting from horizontal expansion to vertical development, resulting in skylines dominated by high-rise buildings. The post-construction operations and maintenance of these buildings are critical, requiring regular structural health monitoring (SHM) proactively identify address potential safety concerns. Interferometric synthetic aperture radar (InSAR) has proven effective for building safety, but most studies rely on high-resolution (SAR) images. high cost...
Abstract Electric field-induced second harmonic generation (EFISH) allows electrically controlling nonlinear light-matter interactions crucial for emerging integrated photonics applications. Despite its wide presence in materials, the figures-of-merit of EFISH are yet to be elevated enable novel device functionalities. Here, we show that polar skyrmions, a topological phase spontaneously formed PbTiO 3 /SrTiO ferroelectric superlattices, exhibit an outstanding comprehensive performance. The...
Abstract Photocatalytic reduction of carbon dioxide (CO 2 ) has been expected to be an effective way reduce emissions. Designing photocatalytic materials with long-term effectiveness is the key technology. In this work, CoO nanoparticles loaded on surface reduced graphene oxide (rGO) membranes silicon substrate were in-situ fabricated by one-step method. The resulting can convert CO into monoxide (CO) up 70 h at a steady rate ∼185 ± 30 µ mol g −1 selectivity nearly 100%. This material system...
Area detectors have been widely used in X-ray diffraction (XRD) to improve the acquisition speed and data quality. Here, an accurate, high efficiency, low distortion approach with a large angle range for collecting powder is developed which carried out by rotating small area detector on arm of diffractometer. A series collected images are spliced converted into one 1D XRD pattern. The calculation 2θ value intensity corresponding every pixel shown detail. calibration experimental geometry was...
Multilayer graphene was grown on Ni foil(30µm) via atmospheric pressure chemical vapor deposition (APCVD) at different temperature of 800℃,900℃,1000℃, we observe structural difference between the three process by in situ X-ray diffraction and Raman measurements, our experimental results show that plays an important role growth, growth rate is increased with increasing temperature.Moreover, found 900 , ℃ has best quality.These will be helpful to better understanding mechanism process.