A5054615980- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Semiconductor Quantum Structures and Devices
- Advanced Semiconductor Detectors and Materials
- Advanced Photocatalysis Techniques
- Gas Sensing Nanomaterials and Sensors
- Copper-based nanomaterials and applications
- Gold and Silver Nanoparticles Synthesis and Applications
- ZnO doping and properties
- Nanocluster Synthesis and Applications
- 2D Materials and Applications
- Cardiac electrophysiology and arrhythmias
- Perovskite Materials and Applications
- Solid-state spectroscopy and crystallography
- ECG Monitoring and Analysis
- Advanced Nanomaterials in Catalysis
- Cardiac Arrhythmias and Treatments
- Crystal Structures and Properties
- Laser-Ablation Synthesis of Nanoparticles
- Analytical Chemistry and Sensors
- Transition Metal Oxide Nanomaterials
- MXene and MAX Phase Materials
- Ion channel regulation and function
- Graphene research and applications
- Polymer Surface Interaction Studies
Duy Tan University
2019-2024
Vietnam Academy of Science and Technology
2022
Bridge University
2020
Jeonbuk National University
2015-2018
Jeju National University
2013-2014
Mokpo National Maritime University
2012
Applied Spectra (United States)
2012
Mokpo National University
2012
We used low-temperature reactions to synthesize different-sized CdSe quantum dots (QDs) capped with fatty-acid and phosphine ligands. From the correlation of high-resolution transmission electron microscopy X-ray diffraction (XRD) analyses synthesized QDs, we observed size-dependent shape anisotropy. In addition, recorded XRD patterns revealed mixed crystal facets zinc blende wurtzite structures in small-sized QDs. Furthermore, from differential absorption (DA) spectra, extracted electronic...
We have investigated the feasibility of laser-induced breakdown spectroscopy (LIBS) as a fast, reliable classification tool for sea salts. For 11 kinds salts, potassium (K), magnesium (Mg), calcium (Ca), and aluminum (Al), concentrations were measured by inductively coupled plasma–atomic emission (ICP-AES), LIBS spectra recorded in narrow wavelength region between 760 800 nm where K (I), Mg Ca (II), Al cyanide (CN) band emissions are observed. The ICP-AES measurements revealed that K, Mg,...
Abstract The influence of the growth conditions multilayer CdTe/ZnTe quantum dots (QDs) on Si substrate upon their carrier dynamics is studied using intensity integration and broadening photoluminescence. unusual temperature dependence line explained a model for interband transitions that involves lowest discrete electronic state (1S e ) with different hole states 3/2 2S 1P transition. These are expected to play critical role in both thermally activated energy QDs. We also demonstrate...
Abstract Our study delved into the detailed investigation of Cs 2 SnBr 6 double perovskites, focusing on their electrical properties, lattice dynamics, and stability. The direct bandgap for was estimated to be at 2.93 eV. One external translational mode + with T 2g symmetry three internal modes octahedral A 1g , E g symmetries are defined by calculated experimental micro-Raman scattering. We show a correlation first-principles calculations, validating using band-structured electronic...
We reported the synthesis and full characterization of ultralong Bi2S3 nanowires with diameters 60–80 nm lengths above 1 μm, showing growth in [001] direction. Combining computed lattice dynamics orthorhombic experimental micro-Raman scattering study provided comprehensive solutions. demonstrate that 10 active modes originated from Raman symmetry (4Ag + 2B1g 3B2g 1B3g), peak at 124 cm–1 is due to IR-active B3u mode. The use catalyst for dewatering hexavalent chromium-containing wastewater...
We report on the carrier transfer and thermal escape in CdTe/ZnTe quantum dots (QDs) grown a GaAs substrate. The significant emission-energy-dependent decay time at high excitation intensity (35 W/cm2) is attributed to lateral of carriers QDs. At low temperature (< 35 K) emission energy 2.168 eV), thermally activated transition occurs between two different states separated by approximately 9 meV, while main contribution nonradiative processes from QDs that assisted scattering via...
Abstract We studied the temperature-dependent photoluminescence (PL) and time-resolved PL spectra of multilayer CdTe/ZnTe quantum dots (QDs) to understand their carrier dynamics. demonstrated a method enhancing confinement carriers in CdTe QDs by modulating number stacked layers, leading enhanced acoustic phonons up 67 μeV reducing optical phonon coupling 20 meV with an average energy meV. The decay time could be explained using simple model thermal redistribution states. Thermal escape from...
In this study, new types of gel polymer blend electrolytes (GPBEs) were prepared with the synthesized PVC-g-PMMA graft copolymer, PMMA, plasticizers (propylene carbonate (PC), dioctyl phthalate (DOP)), and different loadings Mg(ClO4)2 via solution casting method using tetrahydrofuran as solvent. Fourier transform infrared (FTIR) spectra showed mutual molecular interactions between organic moieties. The scanning electron microscopy images GPBEs their wrinkled surface morphology due to low...
We report on photoelectrochemical (PEC) characteristic of a few–layer MoS2–flakes deposited ZnO nanorod (MS–ZNR) configuration prepared via the hydrothermal and metal–organic chemical vapor deposition (MOCVD) approach. The MS–ZNR nanostructure exhibited enhanced photoexcited electron-hole pair separation transfer for energy–storage/or conversion applications. Due to suppressing recombination mechanism charge carriers, PEC performance photoelectrode revealed higher photocurrent density (1.42...