A5056440735- Advanced Sensor and Energy Harvesting Materials
- Metallic Glasses and Amorphous Alloys
- Dielectric materials and actuators
- Glass properties and applications
- Tactile and Sensory Interactions
- Conducting polymers and applications
- Force Microscopy Techniques and Applications
- Diamond and Carbon-based Materials Research
- Advanced materials and composites
- Gas Sensing Nanomaterials and Sensors
- Metal and Thin Film Mechanics
- Synthesis and properties of polymers
- Corrosion Behavior and Inhibition
- Nuclear Materials and Properties
- Hydrogen embrittlement and corrosion behaviors in metals
- Quantum optics and atomic interactions
- ZnO doping and properties
- EEG and Brain-Computer Interfaces
- Innovative Energy Harvesting Technologies
- Non-Invasive Vital Sign Monitoring
- Molecular spectroscopy and chirality
- MXene and MAX Phase Materials
- Carbon Nanotubes in Composites
- Microstructure and mechanical properties
- Air Quality Monitoring and Forecasting
Southwest Jiaotong University
2024-2025
Xi'an Jiaotong University
2016-2024
Continuous monitoring of blood pressure (BP) and multiparametric analysis cardiac functions are crucial for the early diagnosis therapy cardiovascular diseases. However, existing approaches often suffer from bulky intrusive apparatus, cumbersome testing procedures, challenging data processing, hampering their applications in continuous monitoring. Here, a heterogeneously hierarchical piezoelectric composite is introduced wearable BP function monitoring, overcoming rigidity ceramic...
E-skins, capable of responding to mechanical stimuli, hold significant potential in the field robot haptics. However, it is a challenge obtain e-skins with both high sensitivity and stability. Here, we present bioinspired piezoresistive sensor hierarchical structures based on polyaniline/polystyrene core–shell nanoparticles polymerized air-laid paper. The combination laser-etched reusable templates sensitive materials that can be rapidly synthesized enables large-scale production. Benefiting...
Coherent twin boundaries (CTBs) are internal interfaces that can play a key role in markedly enhancing the strength of metallic materials while preserving their ductility. They known to accommodate plastic deformation primarily through migration, experimental evidence documenting large-scale sliding CTBs facilitate has thus far not been reported. We show here CTB is possible whenever loading orientation enables Schmid factors leading and trailing partial dislocations be comparable each...
Modulation of piezoelectricity by doping at the atomic scale, with insight into general factors affecting and enhancement principle.
Ferroelectric polymers have drawn tremendous attention in film capacitors owing to their high permittivity and ease of processing. Nevertheless, the energy density such materials is severely constrained due inferior breakdown strength. To address this dilemma, a double-gradient multilayered all-organic dielectric composite proposed, fabricated via simple layer-by-layer solution-casting process. The experimental results demonstrate that significantly suppresses leakage current compared...
Abstract Bioinspired soft robots hold great potential to perform tasks in unstructured terrains. Ferroelectric polymers are highly valued for their flexibility, lightweight, and electrically controllable deformation. However, achieving large strains ferroelectric typically requires high driving voltages, posing a significant challenge practical applications. In this study, we investigate the role of crystalline domain size enhancing electrostrain performance relaxor polymer poly(vinylidene...
Abstract In the absence of externally applied mechanical loading, it would seem counterintuitive that a solid particle sitting on surface another could not only sink into latter, but also continue its rigid-body motion towards interior, reaching depth as distant thousands times diameter. Here, we demonstrate such case using in situ microscopic well bulk experiments, which diamond nanoparticles ~100 nm size move iron up to millimeter depth, at temperature about half melting point iron. Each...
Piezoelectric electronics possess great potential in flexible sensing and energy harvesting applications. However, they suffer from low electromechanical performance all-organic piezoelectric systems due to the disordered weakly-polarized interfaces. Here, we demonstrated an all-polymer piezo-ionic-electric with PVDF/Nafion/PVDF (polyvinylidene difluoride) sandwich structure regularized ion-electron The effect piezoionic mutually couple based on such interfaces, endowing this unique working...
Oxide glasses are intrinsically brittle at room temperature when loaded under tension. In this study, a high-strength CoFe-based metallic glass was used as strengthening phase to make Co–Fe–Ta–B–O oxide become stronger and ductile in The developed metallic-glass-reinforced matrix nanocomposite possessed supra-nanometer-sized dual-phase structure. Owing the dispersion effects, showed tensile strength σb of ∼2.7 GPa, about 29% higher than that single-phase glass. Meanwhile, its plasticity εp...
Haze (known as “Mai” 霾 in Chinese) threatens the health of billions people across globe. To begin solving this problem without severely slowing down economy, one has to mechanistically and geographically pinpoint sources these pollutants, key which is thoroughly characterize fingerprint particulates. Here we present a broad survey classification thousands individual airborne particu-lates by using Scanning Electron Microscope (SEM) measure their diverse mor-phologies chemistries, could...
Zinc oxide (ZnO), as a typical piezoelectric semiconductor, has gained significant attention in the field of wearable electromechanical coupling. However, presence intrinsic screening effect becomes bottleneck developing high-performance ZnO-based devices. To address this limitation, we propose formation p-n homojunction by La doping ZnO nanorods (NRs) well discrete structural design to improve their electrical output and flexibility. The enhanced performance mechanism behind it are explored...