A5101876885- Ferroelectric and Piezoelectric Materials
- Catalytic Processes in Materials Science
- Liquid Crystal Research Advancements
- Photonic Crystals and Applications
- Aluminum Alloys Composites Properties
- Catalysis and Oxidation Reactions
- Microwave Dielectric Ceramics Synthesis
- Thermodynamic properties of mixtures
- Spectroscopy and Quantum Chemical Studies
- Electronic and Structural Properties of Oxides
- Thermal properties of materials
- Microstructure and mechanical properties
- Advanced Physical and Chemical Molecular Interactions
- Optical Coatings and Gratings
- Photonic and Optical Devices
- Advanced Mathematical Modeling in Engineering
- Semiconductor Lasers and Optical Devices
- Nanofluid Flow and Heat Transfer
- Advanced Optical Imaging Technologies
- Diffusion Coefficients in Liquids
- Phase Equilibria and Thermodynamics
- Inorganic Chemistry and Materials
- Optical Polarization and Ellipsometry
- Magnesium Alloys: Properties and Applications
- Advanced Materials Characterization Techniques
Beijing Institute of Petrochemical Technology
2024
Dalian University
2024
Yanshan University
2024
Dalian University of Technology
2024
Xiangtan University
2010-2023
Xi'an Aeronautical University
2019
Hong Kong University of Science and Technology
2013-2014
University of Hong Kong
2013-2014
Metal–support interactions (MSIs) are fundamental to the design and optimization of heterogeneous catalysts.
This paper describes the fabrication procedure and optical characterization of ferroelectric liquid-crystal (FLC) gratings based on photo-alignment. The includes only one side photo-alignment substrate, while other substrate does not have any alignment layer. Both 1D 2D been fabricated. proposed diffraction element shows high efficiency ∼ 65% fast response time 50 μs, which is much faster than existing technologies. Such can be operated with frequency around 2 kHz at electric field 6.67...
Although the nonmonotonic variation in diffusion coefficients of alcohol and water with changing concentrations aqueous solutions has been reported for many years, underlying physical mechanisms remain unclear. Using molecular dynamics simulations, we investigated methanol solutions. Our findings reveal that is co-influenced by hydrogen bonding hydrophobic ends molecules. A stronger bond (HB) network a higher concentration molecules both enhance correlations, thereby slowing solution. As...
Abstract Fast response time, high contrast ratio various FLC electrooptical modes are achieved through the application of photoaligning layers in cells. FLCD with a resolution can be used screens field sequential color (FSC) microdisplays, which now one most advanced technologies for pico‐projectors.
Radiation displacement effect is studied using shell model molecular dynamics simulations. Using oxygen atom as a primary knock-on atom, the creation and evolution of various defects in system corresponding to atom(PKA) energy 1 keV are studied. The results show that largest number created when incidence along [001]direction. Among all defect species, dominant, its concentration reaches 80%. does not change spontaneous polarization significantly, reversal also changes little. Defect...
摘要 采用基于密度泛函理论的第一性原理方法,研究了BaTiO3在四方相下的各种缺陷性质.计算结果表明,在富氧环境下,钛的中性氧空位、分肖特基缺陷2V3-Ti+3V2+O形成能分别为最低;而当体系处在还原环境下时,氧空位逐渐成为主要缺陷,其形成能最低.由于四方相下存在较强的Ti—O键共价杂化,四方相下全肖特基缺陷V2-Ba 关键词: 缺陷 / 第一性原理 BaTiO3 Abstract Based on density functional first principles method, the defect properties in tetragonal have been studied. The results showed that formation energies of neutral Ti vacancy and partial Schottky 2V3-Ti+3V2+Oare lowest under oxygen-rich condition; while reducing condition oxygen becomes primary defect....
Abstract Fast response time, high contrast ratio various FLC electrooptical modes, are achieved through the application of photoaligning layers in cells. FLCD with a resolution can be used screens field sequential color (FSC) microdisplays, which now one most advanced technologies for pico‐projectors. The switchable goggles and lenses based on new prototypes efficiently applied generation 2D/3D LCD TVs.
Rational design of γ-alumina-based catalysts relies on an extensive understanding the distribution hydroxyl groups surface γ-alumina and their physicochemical properties, which remain unclear challenging to determine experimentally due structural complexity. In this work, by means DFT thermodynamic calculations, various hydroxylation modes (110) (100) surfaces at different OH coverages were evaluated, based a model reflect relationship between temperature structure was established stable...
The primary dielectric relaxation process of monoalcohols typically exhibits characteristic Debye behavior, and the factors influencing its rate have become a research focus in recent years. It is generally believed that hydrophilic end (i.e., hydroxyl group) alcohol molecules plays major role through hydrogen bonding networks, while hydrophobic mainly exerts an indirect effect by formation intermolecular bonds. This study systematically investigates methanol using molecular dynamics...
Radiation displacement effect of BaTiO3 ferroelectric under epitaxial compressive strain is studied by using molecular dynamics simulations which based on shell model. The numbers defects, distributions and changes polarization in the system are calculated before after radiation strains 0, 0.4%, 0.8%, 1.2%, 1.6%, 2.0% respectively O atom 1 keV [001] direction as a primary konck-on (PKA). damaged areas, distances defect, migration PKA reverse applied electric field, obtained two cases: 2% no...
Abstract The spatial confining forced network assembly (SCFNA) has proven to be a promising method for greatly improving the thermal conductivity (TC) of polymer composites via transforming self‐assembled networks into force‐assembled in matrices. Most models currently use were derived predict TC with networks; however, these are not suitable predicting networks. To address this issue, prediction model polymer/carbon fiber (CF) obtained using SCFNA was developed. First, literature model,...
The objective of the present study is to clarify heat transfer characteristics laminar natural convection around a horizontal circular cylinder immersed in liquid sodium. We show at first that Boussinesq approximation more applicable sodium than air with good accuracy. Boussinesq-approximated Navier-Stokes and energy equations are solved by using finite-difference method. following correlation equation obtained from numerical results:ln Nu=0.172+0.164 ln GrPr2+0.003 (ln GrPr2)2,...