A5044358935- Solid State Laser Technologies
- Luminescence Properties of Advanced Materials
- Gold and Silver Nanoparticles Synthesis and Applications
- Laser-Ablation Synthesis of Nanoparticles
- Glass properties and applications
- Laser Material Processing Techniques
- Quantum Dots Synthesis And Properties
- Laser Design and Applications
- Nonlinear Optical Materials Studies
- Carbon and Quantum Dots Applications
- Advanced Fiber Laser Technologies
- Photochemistry and Electron Transfer Studies
- Advanced Photocatalysis Techniques
- Diamond and Carbon-based Materials Research
- Nanocluster Synthesis and Applications
- Copper-based nanomaterials and applications
- Atmospheric aerosols and clouds
- Chalcogenide Semiconductor Thin Films
- ZnO doping and properties
- Semiconductor Quantum Structures and Devices
- Plasmonic and Surface Plasmon Research
- 2D Materials and Applications
- Graphene research and applications
- TiO2 Photocatalysis and Solar Cells
- MXene and MAX Phase Materials
Vietnam Academy of Science and Technology
2004-2025
Osaka University
2010-2017
Vietnam National University, Hanoi
2016
Thai Nguyen University
2016
University of Pavia
2016
Engineering (Italy)
2016
Institute of Mathematics
2004
The single-pass one-step method for printing conductive silver tracks on a glass surface, using the laser-induced forward transfer (LIFT) technique, was proposed, providing unique opportunity high-throughput of surface micro- and nanostructures with high electrical conductivity positioning accuracy. This developed via our multi-parametric research, resulting in selection optimal material, laser irradiation, conditions. Optical, scanning transmission electron, atomic force microscopy methods,...
The photoluminescence spectra of the dominant H3 and H4 centers in a natural diamond sample, which is preliminarily characterized by optical infrared spectrophotometry, are excited femtosecond laser pulses with wavelength 470 nm varying intensity. Saturation intensity normalized radiation observed attributed to saturation resonance transition responsible for excitation. This makes it possible first time estimate absorption cross sections centers, can be compared values known from literature...
In recent decades, metal additive manufacturing (AM) has undergone remarkable advancements and become increasingly significant in industries. Among AM technologies, wire arc (WAAM) great potential for producing medium to large-sized parts becomes a good choice the sustainable context. This paper aims analyze aspects of WAAM compare it with CNC machining via production an Inconel 625 alloy component. The evaluation is based on life cycle assessment (LCA) cost analysis methods. results...
Abstract Carbon quantum dots (CQDs), synthesized through controlled microplasma treatment of orange juice, exhibit unique luminescent characteristics. The impact synthesis time on particle size was investigated. Deconvoluted emission spectra displayed broad bands, peaking at an excitation wavelength 350 nm for CQD sizes 2.06, 2.4, and 3.09 nm, indicating multiple fluorescence peaks. This suggests a mixture CQDs with different energies their surfaces. Luminescence kinetics unveiled three...
We investigate the structural, electronic, optical, and thermoelectric properties of three compositions Mo2C-MXenes (Mo2CF2, Mo2C(OH)2, Mo2CO2) from monolayer to multilayer by first principles calculation within Density Functional Theory (DFT) Boltzmann transport theory. Firstly, atomic structures are optimized, their respective created with comparative research. Secondly, electronic band optical studied in detail. The estimation bandgap energy its functionalization reveal that most Mo2CF2...
Carbon quantum dots (CQDs) are a novel type of fluorescent nano-materials with various unique properties. They recently attracting enormous interest due to their superiority in water solubility, chemical inertness, low toxicity, ease functionalization as well resistance photo-bleaching and potential applications biomedical indication, photo-catalysis, energy conversion, optoelectronics, sensing. In this work, we present facile environmentally friendly synthesis CQDs based on plasma - liquid...
To enhance the effectiveness of TiO2 as a photocatalyst, it was believed that drawbacks large bandgap and rapid electron-hole recombination can be overcome by coupling with plasmonic metal nanoparticles. The incorporation nanoparticles onto surface requires suitable procedure to achieve proper particle adhesion. In this work, we propose simple, clean, effective activation using plasma enhanced wet chemical treatment. Under only 5 min treatment in 3% NH3/3% H2O2 solution, gold were found...
Abstract We present a high-resolution optical spectropolarimetric observation of the red supergiant VY CMa. The spectrum CMa contains numerous emission features that are mainly due to molecular bands TiO, ScO, and VO. In addition, lines Ba ii , Ca i Na K i, Rb identified in spectrum. Our shows all exhibit very large abrupt linear polarization reduction, i.e., depolarization, across band heads up 10% or higher with respect continuum level. observations demonstrate clearly associated largest...
Hybrid plasmonic-dielectric material were fabricated by micro-discharge through water sols of sub-micrometer-sized diamonds mixed with HAuCl4 acid. Primary characterization their deposits on a silicon wafer surface means electron microscopy and energy-dispersive x-ray spectroscopy indicate close proximity gold nanoparticles diamond particles, which is supported photoluminescence studies demonstrating strong – almost two-fold damping luminescence owing to the attachment nanoparticles. UV-near...
CuO:ZnO nanocomposite photocatalyst with tunable ratios of CuO was synthesized using a low-temperature-assisted co-precipitation method, which is suitable for industrial-scale production. Analytical techniques, including XRD, FE-SEM, HR-TEM, FTIR, XPS and UV–Vis, were utilized to investigate the structure, morphological characteristics, chemical composition optical properties nanocomposite. The XRD analysis reveals that samples exhibit single phase, characterized by wurtzite hexagonal...