A5014282445- Metallic Glasses and Amorphous Alloys
- Material Dynamics and Properties
- Glass properties and applications
- Microstructure and mechanical properties
- Theoretical and Computational Physics
- nanoparticles nucleation surface interactions
- Phase-change materials and chalcogenides
- Intermetallics and Advanced Alloy Properties
- Quasicrystal Structures and Properties
- Advanced Photocatalysis Techniques
- Advanced Chemical Physics Studies
- Copper Interconnects and Reliability
- High Temperature Alloys and Creep
- Microstructure and Mechanical Properties of Steels
- Aluminum Alloys Composites Properties
- High-pressure geophysics and materials
- Rare-earth and actinide compounds
- Advanced materials and composites
- Solidification and crystal growth phenomena
- Fusion materials and technologies
- Perovskite Materials and Applications
- Cultural Heritage Materials Analysis
- Copper-based nanomaterials and applications
- Advancements in Battery Materials
- High Entropy Alloys Studies
Shanghai Jiao Tong University
2016-2025
Johns Hopkins University
2022
Chinese National Human Genome Center at Shanghai
2020
Hunan University of Science and Technology
2019
Western University
2008-2011
Regroupement Québécois sur les Matériaux de Pointe
2006-2008
Université de Montréal
2006-2008
Tsinghua University
2001-2007
Collaborative Innovation Center of Advanced Microstructures
2005
Nanjing University
2003-2005
A surface treatment of PEDOT:PSS layer with [PNA]BF 4 is employed to realize vertically homogeneous distribution Sn/Pb-containing perovskite films through balancing its crystallization rate and achieving chemical encapsulation the acidic substrate.
The two-dimensional (2D)/three-dimensional (3D) heterojunction perovskite solar cell (PSC) has recently been recognized as a promising photovoltaic structure for achieving high efficiency and long-term stability. Rational design of the 2D spacer cation is important to achieve win–win situation defects' passivation photogenerated carrier extraction. Herein, we carry out first-principles calculation analyze dipole moment phenethylamine-type molecules their resulting 2D/3D perovskites. Based on...
The solid solution strengthening of Li, Mg, Al, Mn, Cu and Ag in biodegradable Zn-based alloys is quantitatively investigated by first-principles calculations based on density functional theory. alloying effect lattice parameters elastic constants determined. Mn found to have the greatest impact shear modulus, while Mg Al exhibit least. According theories proposed Fleischer Labusch, capability selected elements can be ranked as > Li Cu, Al. different solutes attributed their valence electron...
Shear transformation is the elementary process for plastic deformation of metallic glasses, prediction occurrence shear events therefore vital importance to understand mechanical behavior glasses. In this Letter, from view potential energy landscape, we find that protocol-dependent governed by stress gradient along its minimum path and propose a framework as well an atomistic approach predict triggering strains, locations, structural transformations under different protocols in Verification...
Designing of new alloys requires a detailed understanding the roles played by each alloying element, yet systematic investigation solid-solution strengthening effects in Ni is still missing. High throughput density functional theory calculations were therefore performed to quantitatively assess 35 potential elements from 2nd 6th row periodic table FCC-Ni with varying concentrations. The obtained composition-dependent lattice constants and shear moduli employed analyze their within framework...
Avalanche phenomena characterized by power-law scaling are observed in amorphous solids and many other nonequilibrium systems during their deformation. Avalanches these often exhibit scale invariance, a feature reminiscent of critical universality classes, although fundamental nature remains unclear. In this paper, we use situ acoustic emission techniques to experimentally investigate the characteristics evolution avalanches deformation process bulk metallic glass (BMG), representative...
The liquid metal embrittlement (LME) induced by Zn melts in advanced high strength steels has seriously hindered their wide application various industries. Microscopically, wetting is the precursor for LME; it therefore crucial to understand of on Fe surfaces. Molecular dynamics simulations were conducted investigate behavior droplets Fe(001), Fe(110), and Fe(111) surfaces from both thermodynamics aspects. simulation results reveal that surface energy solid significantly greater than tension...
A dodecagonal quasicrystalline phase was grown in nano-sized Ag-Pt multilayers upon solid-state reaction and the existence of respective metastable state system also confirmed by ion-beam mixing experiments. The major driving force for intermixing between Ag Pt layers, as well crystal-to-quasicrystal transition, thought to be interfacial free energy, which elevated initial up an energetic corresponding phase.
MoS 2 nano-scaffolds are introduced into the PbI skeleton during a sequential deposition process to realize homogeneous growth of perovskite crystals through expanding physical volume layer and reducing film residual stress.
Introducing a donor-acceptor (D-A) unit is an effective approach to facilitate charge transfer in polymeric carbon nitride (PCN) and enhance photocatalytic performance. However, the introduction of hetero-molecules can lead decrease crystallinity, limiting interlayer inhibiting further improvement. In this study, we constructed novel D-A type with significantly higher crystallinity bi-directional channel, which was achieved through 2,5-thiophenedicarboxylic acid (2,5-TDCA)-assisted...
An embedded-atom potential for the equilibrium immiscible Cu-Ta system is constructed with an important aid of first principles calculation, which provides some physical properties two nonequilibrium CuTa and ${\mathrm{Cu}}_{3}\mathrm{Ta}$ alloy phases fitting potential. Applying potential, molecular dynamics simulations a Cu-based solid solution model reveal that when Ta solute atoms exceed critical value 30 at. % in Cu, enthalpy elevated up to high level, thus triggering...
The preexponential factors for self-diffusion via hopping and/or exchange on the (001), (110), and (111) surfaces of Cu, Ag, Ni are examined within transition state theory. calculations show that prefactors have a weak temperature dependence above room temperature, theory, Vineyard method provides rather accurate description them. It is also found present approach able to predict same precision as those obtained from molecular-dynamics simulations, better than derived thermodynamical...
Owing to the sluggish water oxidation process, unearthing an ideal model for disclosing impact of architectural approach on activity photocatalysts becomes a vital issue. Here, we propose innovative in situ modification strategy constructing ultrapure BiVO4 nanosheets graphene (u-BVG) toward accelerated photocatalytic reaction. Considering Mott-Schottky heterojunctions at contact interface u-BVG, feasible electron transfer from excited facilitates holes migrate onto surface Compared with...