A5016530851- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Microwave Dielectric Ceramics Synthesis
- Acoustic Wave Resonator Technologies
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Dielectric materials and actuators
- Dielectric properties of ceramics
- Luminescence and Fluorescent Materials
- Advanced Sensor and Energy Harvesting Materials
- Advanced Fiber Laser Technologies
- Photonic and Optical Devices
- Optical Network Technologies
- Thermal and Kinetic Analysis
- Adsorption and biosorption for pollutant removal
- Polymer Surface Interaction Studies
- Perovskite Materials and Applications
- Carbon and Quantum Dots Applications
- Magnetic Properties and Synthesis of Ferrites
- Advanced Photonic Communication Systems
- Advanced Photocatalysis Techniques
- Advanced Fiber Optic Sensors
- Polydiacetylene-based materials and applications
- Chalcogenide Semiconductor Thin Films
- Photonic Crystal and Fiber Optics
Southwest Minzu University
2020-2025
Beijing Forestry University
2015-2025
Chinese University of Hong Kong, Shenzhen
2023-2025
Shihezi University
2025
Wuyi University
2025
Sichuan University
2014-2024
Wuhan National Laboratory for Optoelectronics
2024
Huazhong University of Science and Technology
2024
Fuzhou University
2024
University of Science and Technology of China
2009-2024
Because of growing environmental concerns, the development lead-free piezoelectric materials with enhanced properties has become great interest. Here, we report a giant coefficient (d33) 550 pC/N and high Curie temperature (TC) 237 °C in (1-x-y)K1-wNawNb1-zSbzO3-xBiFeO3-yBi0.5Na0.5ZrO3 (KNwNSz-xBF-yBNZ) ceramics by optimizing x, y, z, w. Atomic-resolution polarization mapping Z-contrast imaging reveals intimate coexistence rhombohedral (R) tetragonal (T) phases inside nanodomains, that is,...
Lead-free relaxor ferroelectrics (RFEs) exhibit a broader variety of phenomena in comparison with the "canonical" lead-containing compositions, rendering them attractive for newly multifunctional materials low-cost and eco-friendly processing. Here, guided by characteristics ferroelectrics, lead-free (1 – x)BaTiO3–xKNbO3 systems are conceived optimized to construct special crossover region, which brings multiple benefits including tiny hysteresis loss while pursuing high maximum...
Due to the presence of pores and low density, a high recoverable energy density (Wrec) value is usually obtained at cost storage efficiency (η) in lead-free potassium sodium niobate [(K, Na)NbO3, KNN] based ceramics, which also affects hardness finally limiting further development practical applications. A Wrec (∼3.60 J/cm3 ) η (∼74.2%) are 0.975K0.5Na0.5NbO3-0.025LaBiO3 (0.975KNN-0.025LB) ceramics simultaneously under dielectric breakdown strength (DBS) 340 kV/cm, together with fast...
Here, we introduce phase change mechanisms in lead-free piezoceramics as a strategy to utilize attendant volume for harvesting large electrostrain. In the newly developed (K,Na)NbO3 solid-solution at polymorphic boundary combine atomic mapping of local polar vector with situ synchrotron X-ray diffraction and density functional theory uncover interpret its underlying nature. We demonstrate that an electric field-induced transition between orthorhombic tetragonal phases triggers dramatic...
Flexible supercapacitors with high mechanical strength, excellent flexibility, and performance are highly desired to meet the increasing demands of flexible electronics. However, trade-off between electrochemical properties remains challenging. In this context, an interface-engineered strategy approach was proposed construct polylactic acid (PLA)/polyaniline (PANI)/MXene film (PPM) electrodes for supercapacitor applications. PPM electrode, porous PLA prepared from...
Abstract Multimodal deep learning plays a pivotal role in supporting the processing and of diverse data types within realm artificial intelligence generated content (AIGC). However, most photonic neuromorphic processors for can only handle single modality (either vision or audio) due to lack abundant parameter training optical domain. Here, we propose demonstrate trainable diffractive neural network (TDONN) chip based on on-chip optics with massive tunable elements address these constraints....
Conductive hydrogels, characterized by their excellent conductivity and flexibility, have attracted widespread attention research in the field of flexible wearable sensors. This paper reviews application progress, related challenges, future prospects conductive hydrogels Initially, basic properties classifications are introduced. Subsequently, this discusses detail specific applications different sensor applications, such as motion detection, medical diagnostics, electronic skin,...
Abstract Despite the dominance of lead-based piezoelectric materials with ultrahigh electric-field-induced strain in actuating applications, seeking eco-friendly substitutes an equivalent performance remains urgent demand. Here, a strategy regulating irreversible non-180° domain via phase engineering is introduced to optimize available (the difference between maximum and remnant unipolar curve) lead-free potassium–sodium niobate-based ceramics. In situ synchrotron X-ray diffraction Rayleigh...
By composition engineering and subtle criticality confinement, a giant recoverable electro-strain (<italic>S</italic> > 0.7%) with reduced hysteresis is reported in BNT-based relaxor ferroelectrics, which can be kept at high level (<2% variation) even after 10<sup>5</sup> fatigue cycles.
In this study, good energy storage properties are obtained via enhancing dielectric breakdown strength (DBS) in transparent ErBiO3 (EB)-doped (K0.5Na0.5)NbO3 (KNN-xEB) ceramics. The doping of EB makes a strong impact on the grain size and densities KNN-based ceramics, which decreases average enhances significantly. A gradual transformation crystal structures from orthorhombic to pseudocubic occurs modification. Rietveld refinement is carried out further investigate influence doped structure,...
Electromechanical actuators with toxic lead-based electrostrictive materials dominate the market of high-precision electronics devices, so one urgent aims becomes how to explore new generation ecofriendly superior electrostriction behaviors. Herein, a strategy modifying active space for B-site in lead-free relaxor ferroelectrics arouses potential capacity electrostriction, including K0.5Na0.5NbO3 (KNN). Through co-doping Bi3+ and Ni2+, typical (1 – x)K0.5Na0.5NbO3–xBiNi2/3Nb1/3O3 (KNN-xBNN,...
Implantable medical electronics (IMEs) are now becoming increasingly prevalent for diagnostic and therapeutic purposes. Despite extensive efforts, a primary challenge IMEs is reliable wireless power communication to provide well-controlled, therapeutically relevant effects. Ultrasonic energy transfer (UETC) employing traveling ultrasound waves transmit has emerged as promising strategy IMEs. Nevertheless, conventional UETC systems rigid, bulky, based on toxic lead-based piezoelectric...
Piezoelectric wearable electronics, which can sense external pressure, have attracted widespread attention. However, the enhancement of electromechanical coupling performance remains a great challenge. Here, new solid solution Ba1−xSrxSn0.09Ti0.91O3 (x = 0.00~0.08) is prepared to explore potential high-performance, lead-free piezoelectric ceramics. The coexistence rhombohedral phase, orthorhombic phase and tetragonal determined in ceramic with x 0.06, showing enhanced electrical coefficient...
Previous bismuth-based photocatalysts usually employ a strong acid solution (e.g., HNO3 solution) to obtain an ultrathin structure toward high photocatalytic activity. In this work, the layered BiOIO3 nanosheets are successfully synthesized using just glucose hydrothermal solution. The high-concentration shows obvious acidity after process, which leads quick decrease in thickness of from ∼45.58 ∼5.74 nm. can greatly improve charge carriers' separation and transfer efficiency. generation...
Abstract Stimuli‐responsive materials exhibiting exceptional room temperature phosphorescence (RTP) hold promise for emerging technologies. However, constructing such systems in a sustainable, scalable, and processable manner remains challenging. This work reports bio‐inspired strategy to develop RTP nanofiber using bacterial cellulose (BC) via bio‐fermentation. The green fabrication process, high biocompatibility, non‐toxicity, abundant hydroxyl groups make BC an ideal biopolymer durable...
We have investigated the effects of Cr3+ on hierarchical structure pigskin collagen fibers by use scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), wide-angle diffraction (WAXD), confocal laser micro-Raman (CLRS), and circular dichroism (CD). Our results demonstrate that introduction leads to formation a cluster 20−40 nm between fibrils, while unique axial periodic (D periodicity) fibrils does not change. As concentration increases, order intermolecular lateral...