A5102674091- Gas Sensing Nanomaterials and Sensors
- Photonic and Optical Devices
- Graphene and Nanomaterials Applications
- ZnO doping and properties
- Copper-based nanomaterials and applications
- Optical Coatings and Gratings
- Analytical Chemistry and Sensors
- Graphene research and applications
- GaN-based semiconductor devices and materials
- Advanced MEMS and NEMS Technologies
- Smart Grid Energy Management
- Carbon and Quantum Dots Applications
- Electrochemical sensors and biosensors
- Acoustic Wave Resonator Technologies
- Microgrid Control and Optimization
- Layered Double Hydroxides Synthesis and Applications
- Advanced Battery Technologies Research
- Plasmonic and Surface Plasmon Research
- Quantum Dots Synthesis And Properties
- Advanced Nanomaterials in Catalysis
- Organic Electronics and Photovoltaics
- Nanomaterials for catalytic reactions
- Innovations in Concrete and Construction Materials
- Bauxite Residue and Utilization
- Conducting polymers and applications
Vietnam National University, Hanoi
2024
Vietnam National University Ho Chi Minh City
2017-2023
Ho Chi Minh City University of Technology
2023
Trường ĐH Nguyễn Tất Thành
2021-2022
University of Da Nang
2021
Ho Chi Minh City University of Science
2011
Temperature-dependent photoluminescence (PL) of graphene oxide (GO) reduced with hydrazine and heat has been measured to investigate the effect reduction type on bandgap GO. Nitrogen functionalities formed in hydrazine-treated GO were responsible for a strong localization carriers that caused fluctuation PL peak position temperature. The intensity C-OH was relatively low heat-treated GO, indicating raising temperature facilitated removal hydroxyl groups, resulting larger sp2 domain size...
Surface plasmon resonance (SPR)-based sensors have demonstrated exceptional sensitivity in detecting changes the refractive index (RI) occurring near sensor surface due to variations concentration within medium, chemical reactions, analyte binding with its ligand, and similar factors. However, most conventional SPR rely on an external photodiode system a complex mechanical measure both intensity position of reflected light. This is main limitation typical sensors, making them non-portable...
Crystalline structure and optoelectrical properties of silver-doped tin monoxide thin films with different dopant concentrations prepared by DC magnetron sputtering are investigated. The X-ray diffraction patterns reveal that the tetragonal SnO phase exhibits preferred orientations along (101) (110) planes. Our results indicate replacing Sn 2+ in lattice Ag + ions produces smaller-sized crystallites, which may lead to enhanced carrier scattering at grain boundaries. This causes a...
Stack and composite are the two ways of hybridization between gold nanoparticles (AuNPs) reduced graphene oxide (rGO) which have been fabricated tested ability to detect NH 3 gas at room temperature. The device based on rGO-AuNP structure exhibited highest response fastest recovery time compared stack bare rGO. red shift a resonant peak in absorption spectra negative binding energy 4f 5/2 indicated that remarkable gas-sensing properties this mainly attributed chemical bonding formed AuNPs...
A straightforward hydrothermal process was used to produce a two-dimensional structure-like composite between reduced graphene oxide nanosheets (rGO) and plate-like Cu2O diversify coating materials with antibacterial capabilities. The 2D-Cu2O/rGO revealed 5.7-log bactericidal effect against S. aureus, which greater than that of the reference material (only 3.1-log) after 2.5 h exposure 0.6 mg/ml nanomaterial. According findings, when networks were integrated rGO nanosheets, they randomly...
The sun provides a plentiful and inexpensive source of carbon-neutral energy that has yet to be fully utilized. This is major driving force behind the development organic photovoltaic (OPV) materials devices, which are expected offer benefits such as low cost, flexibility, widespread availability. For performance enhancement inverted ZnO-nanorods (NR)/organic hybrid solar cells with poly(3-exylthiophene):(6,6)-phenyl-C61-butyric-acid-methylester (P3HT:PCBM) poly...
In this study, we controlled tilted angle or AlN c-axis in the aim of high performance AlN-based energy harvester (VEHs). Tilt-angle thin films was adjusted by changing growth temperature from 420℃ to 650℃. The results were confirm X-ray diffractromety equipped with two dimensional detector (2D-XRD). At 22°, which is largest tilt reported for grown incident deposition. addition, temperature, succeeded preparing different angle. Scanning electron spectroscopy (SEM) revealed that have columnar...
This paper focuses on the distribution of energy within a DC microgrid, specifically highlighting utilization different storage sources such as supercapacitors and photovoltaic (PV) generators. In presence abnormal load operation, abrupt changes in power can result inadequate inefficient current sharing microgrid. Thus, an integrated droop control (IDC) method is proposed to automatically by expanding conventional voltage controller into capacitor-based supplement necessary characteristics...