A5100424173- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Electronic and Structural Properties of Oxides
- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Microstructure and mechanical properties
- Aluminum Alloys Composites Properties
- Ferroelectric and Negative Capacitance Devices
- Semiconductor materials and devices
- Advanced materials and composites
- Crystallography and molecular interactions
- Magnetic and transport properties of perovskites and related materials
- Advanced ceramic materials synthesis
- Boron and Carbon Nanomaterials Research
- Semiconductor materials and interfaces
- Advanced Welding Techniques Analysis
Sungkyunkwan University
2019-2023
Xi'an Jiaotong University
2016-2021
Hunan University
2017-2020
Foshan University
2020
China XD Group (China)
2016
Nanyang Normal University
2014
Abstract Developing nano‐ferroelectric materials with excellent piezoelectric performance for piezocatalysts used in water splitting is highly desired but also challenging, especially respect to reaching large piezo‐potentials that fully align required redox levels. Herein, heteroepitaxial strain BaTiO 3 nanoparticles a designed porous structure successfully induced by engineering their surface reconstruction dramatically enhance piezoelectricity. The coherence can be maintained throughout...
Abstract The origin of 2D electron gas (2DEG) at LaAlO 3 /SrTiO (LAO/STO) interfaces has remained highly controversial since its discovery. Various models are proposed, which include electronic reconstruction via surface‐to‐interface charge transfer and defect‐mediated doping involving cation intermixing or oxygen vacancy ( V O ) formation. It is shown that the polar field‐assisted formation LAO/STO surface plays critical roles in 2DEG concurrent structural transition. Comprehensive scanning...
Abstract Developing nano‐ferroelectric materials with excellent piezoelectric performance for piezocatalysts used in water splitting is highly desired but also challenging, especially respect to reaching large piezo‐potentials that fully align required redox levels. Herein, heteroepitaxial strain BaTiO 3 nanoparticles a designed porous structure successfully induced by engineering their surface reconstruction dramatically enhance piezoelectricity. The coherence can be maintained throughout...
The assembled Ba<sub>0.8</sub>Sr<sub>0.2</sub>TiO<sub>3</sub>thin films formed by precisely designed building blocks of ferroelectric nanocubes have a large electrocaloric effect (9.1 K).
Abstract Piezocatalysis, converting mechanical vibration into chemical energy, has emerged as a promising candidate for water‐splitting technology. However, the efficiency of hydrogen production is quite limited. We herein report well‐defined 10 nm BaTiO 3 nanoparticles (NPs) characterized by large electro‐mechanical coefficient which induces high piezoelectric effect. Atomic‐resolution angle annular dark field scanning transmission electron microscopy (HAADF‐STEM) and probe (SPM) suggests...
The plastic deformation mechanism of Cu/Ag multilayers is investigated by molecular dynamics (MD) simulation in a nanoindentation process. result shows that due to the interface barrier, dislocations pile-up at and then Ag matrix occurs nucleation emission from dislocation propagation through interface. In addition, it found incipient postponed, compared with bulk single-crystal Cu. affected lattice mismatch more than difference stacking fault energy (SFE) between Cu Ag. determined...
Abstract High‐throughput first‐principle calculations are implemented to study the structural, mechanical, and electronic properties of cubic XTiO 3 (X = Ca, Sr, Ba, Pb) ceramics under high pressure. The effects applied pressure on physical parameters, such as elastic constants, bulk modulus, Young's shear ductile‐brittle transition, anisotropy, Poisson's ratio, band gap, investigated. Results indicate that improves resistance bulk, elastic, deformation for ceramics. Pugh's ratios B / G...
The equilibrium geometries, relative stabilities, growth patterns, and electronic properties of magnesium-doped silicon clusters Mg 2 Si n (n = 1 - 11) have been systematically investigated at the B3LYP/6-311G (d) level. A large number initial configurations are optimized lowestenergy stable geometries with different spin multiplicities determined. results indicate that most for favor threedimensional structures 3 11. analyses averaged binding energies, fragmentation second-order energy...
Abstract Dopants are typically added to semiconductors or functional oxides substitute specific atomic sites and thereby generate electronic and/or ionic charges. In multilayered ceramic capacitors (MLCCs), various dopants co-doped in ferroelectric BaTiO 3 thin films, with each dopant substituting a site of BaTiO3 for function. particular, rare-earth elements such as Dy, which have formal charge 3+, can act either donor acceptor depending on the doping sites. The unique capability Dy occupy...
Twinnability is a unique property describing the ease with which metal plastically deforms by twinning relative to dislocation-mediated slip. Based on first-principles calculations, simple and effective model, including two calculational supercells three typical generalised stacking fault structures, proposed measure twinnability of face-centred-cubic metals. Here, we investigated interaction alloying atoms faults their impact aluminium alloys. It found that twin propensity Al alloy...