A5035861517- Luminescence Properties of Advanced Materials
- Microwave Dielectric Ceramics Synthesis
- Nuclear materials and radiation effects
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Solid State Laser Technologies
- Chalcogenide Semiconductor Thin Films
- Radiation Detection and Scintillator Technologies
- Catalytic Processes in Materials Science
- Optical properties and cooling technologies in crystalline materials
- Luminescence and Fluorescent Materials
- Transition Metal Oxide Nanomaterials
- Advanced Photocatalysis Techniques
- Glass properties and applications
- TiO2 Photocatalysis and Solar Cells
- Acoustic Wave Resonator Technologies
- Supercapacitor Materials and Fabrication
- Solar Thermal and Photovoltaic Systems
- Photovoltaic System Optimization Techniques
- Advanced Condensed Matter Physics
- Crystal Structures and Properties
- Advanced Semiconductor Detectors and Materials
- Atomic and Subatomic Physics Research
- Lanthanide and Transition Metal Complexes
University of Belgrade
2015-2025
Vinča Institute of Nuclear Sciences
2012-2023
Institute of Economic Sciences
2023
Institute of Nuclear Physics
2015
Institute of Technical Sciences of SASA
2012-2013
Serbian Academy of Sciences and Arts
2013
Synthesis of Eu(3+)- and Er(3+)/Yb(3+)-doped GdVO4 nanoparticles in reverse micelles their multifunctional luminescence properties are presented. Using cyclohexane, Triton X-100, n-pentanol as the oil, surfactant, co-surfactant, respectively, crystalline with ~4 nm diameter prepared at low temperatures. The particle size assessed using transmission electron microscopy is similar to crystallite obtained from X-ray diffraction measurements, suggesting that each comprises a single crystallite....
This study explores potential of Er3+-Yb3+ doped phosphors for up-conversion luminescence thermometry in the temperature range from 10 K to 300 K. Yttrium oxide nanopowder with trivalent ytterbium and erbium ions (Y1.97Yb0.02Er0.01O3) was prepared by hydrothermal synthesis as an example. The intensity ratios emissions thermally coupled 2H11/2 4S3/2 levels Er3+ show strong dependence (in 150 K–300 K) much higher relative sensitivity than those reported above room based materials. maximal...
Herein, temperature dependencies of emission and decay Zn2SiO4:Mn2+ powder in the range from room to 300 °C is reported. These allow sensing luminescence measurements, since Mn2+ intensity, band spectral position, are rapidly changing over entire range. For fluorescence intensity ratio method, measurement that relays on changes with temperature, sensitivity 12.2% found. In case lifetime thermometry, method 0.48% determined. Both values among highest ever recorded for inorganic materials.
Synthesis, structure, morphology, and detailed spectroscopic crystal-field analysis of Mn4+ doped Mg2TiO4 nanoparticles (NPs) are presented. These Mg2TiO4:Mn4+ NPs obtained through a Pechini-type polymerized complex route calcination at 600 °C, approximately 10 nm in diameter loosely agglomerated into 1-μm particles, as evidenced from transmission electron microscopy. exhibit strong, sharp red emission 658 (with 1.2 ms decay) result the spin-forbidden 2Eg → 4A2g transition tetravalent...
The emission rise time of Eu(3+)-doped SrY2O4 was investigated in the temperature range 20-200 °C for application luminescence thermometry. After pulsed excitation, energy transfer between adjacent Eu(3+) ions causes a build-up from (5)D0 level and notable occurs prior to decay. rise-time values linearly decrease with temperature, providing an absolute sensitivity 0.66 μs °C(-1) maximal relative 5.53% at 200 °C, samples containing 0.5 at% ions. It is shown that after excitation which reaches...
The glycine nitrate procedure (GNP) is a method that proved to be the easiest and most effective for controlling composition morphology during synthesis of Co0.9R0.1MoO4 (R = Ho, Yb, Gd). This combustion process achieves control stoichiometry, homogeneity, purity. Metal nitrates were mixed in appropriate stoichiometric ratios produce samples obtained by mentioned further subjected different characterization methods such as differential thermal analyses (DTA), X-ray diffraction (XRD), Fourier...
Powders of Y2O3 co-doped with Yb3+ and Er3+ composed well-crystallized nanoparticles (30 to 50 nm in diameter) no adsorbed ligand species on their surface are prepared by polymer complex solution method. These powders exhibit up-conversion emission upon 978-nm excitation a color that can be tuned from green red changing the Yb3+/Er3+ concentration ratio. The mechanism underlying changes is presented along material structural optical properties. PACS: 42.70.-a, 78.55.Hx, 78.60.-b.
The samples, Lu2O3:Eu3+ (3at.% Eu) and Lu2O3:Sm3+ (1at.% Sm), were prepared via polymer complex solution method using polyethlylene-glyocol as the fuel nucleation agent for crystallization process. Knowing that lutetium oxide has high chemical stability temperature resistance, in this paper we investigated possibility its application high-temperature phosphor thermometry. It is a non-contact technique uses thermal dependence of fluorescence to measure remotely. structural morphological...
The possibility to use photovoltaic (PV) modules under a water layer has been explored different forms: submerged, covered by layer, and transparent box that contains water. All these test conditions have in common the of as filter for solar radiation reduce warming PV cells. effect change spectrum impinging on cells depends highly technology. A numerical analysis evaluate photoelectric efficiency is given. Further indoor experimental measurements stroked artificial light halogen lamp passes...