A5055484338- Luminescence Properties of Advanced Materials
- Radiation Detection and Scintillator Technologies
- Inorganic Fluorides and Related Compounds
- Nuclear materials and radiation effects
- Crystal Structures and Properties
- Glass properties and applications
- Solid State Laser Technologies
- Solid-state spectroscopy and crystallography
- Atomic and Subatomic Physics Research
- Perovskite Materials and Applications
- Inorganic Chemistry and Materials
- Advanced Chemical Physics Studies
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Nuclear Physics and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Microwave Dielectric Ceramics Synthesis
- Advanced Photocatalysis Techniques
- Ga2O3 and related materials
- bioluminescence and chemiluminescence research
- Polyoxometalates: Synthesis and Applications
- Radioactive element chemistry and processing
- Physics of Superconductivity and Magnetism
- Photorefractive and Nonlinear Optics
- Advanced Condensed Matter Physics
Ural Federal University
2015-2024
Institute of Physics and Technology
2013-2023
Giredmet (Russia)
2023
Institute of Physics and Technology
2014-2020
Ekaterinburg State Theatre Institute
2019
University of Canterbury
2011-2017
Utrecht University
2008-2012
Université Claude Bernard Lyon 1
2011
Centre National de la Recherche Scientifique
2011
Lu(3)Al(5)O(12) (LuAG) doped with Ce(3+) is a promising scintillator material high density and fast response time. The light output under X-ray or γ-ray excitation is, however, well below the theoretical limit. In this paper influence of codoping Tb(3+) investigated aim to increase output. High resolution spectra singly LuAG (with Tb(3+)) are reported provide insight into energy level structure two ions in LuAG. For zero-phonon lines vibronic observed for lowest 5d bands Stokes' shift (2 350...
The d-f emission from Ce3+ and Pr3+ in garnets is attracting considerable attention, especially relation to application white light LEDs scintillators. An important aspect the luminescence quenching temperature TQ. It not trivial determine TQ unravel mechanism. In this paper of for are determined by dependent lifetime measurements. results show a 340 K Y3Al5O12:Pr3+ (YAG:Pr) 680 Lu3Al5O12:Pr3+ (LuAG:Pr). For too high measure. onset above 600 (YAG:Ce) or 700 (LuAG:Ce) observed. differences...
A series of Mn 4+ doped BaLa(Na/Li)WO 6 and BaLaLi(W/Te)O phosphors were synthesized studied. Substitution reactions Na + by Li W 6+ Te allows the management energy gap between 2 E g 4 T 2g states improves thermal stability phosphors.
We report estimations of the thermalization length and diffusion coefficient photogenerated carriers in insulator LiYF4 as a function their initial energy. Combining modeling electron–phonon interaction detailed analysis kinetic response fluorescent center Ce3+ under vacuum ultraviolet excitation, is obtained energy electron. This parameter essential for description carrier recombination case nonideal plasma conditions, where electrons holes are strongly correlated. approach also...
Y3Al5O12 (YAG) transparent ceramics doped with Pr3+ have been obtained by vacuum sintering of spray dried commercial powders and characterized XRD SEM techniques. A comprehensive spectroscopic investigation has then carried out including: absorption spectra decay time measurements in the visible-IR spectral region x-ray VUV excitation emission properties studied synchrotron radiation. The main processes responsible for excited states dynamics identified characterized. Comparison single...
Ca(9)Lu(PO(4))(7):Ce (3+) and Ca (9)Lu (PO (4))(7):Pr polycrystalline materials were synthesized by solid state reaction at high temperature. The characterized powder x-ray diffraction (XRPD). luminescence spectroscopy the excited dynamics of these compounds investigated upon excitation with UV/VUV synchrotron radiation. Both showed efficient fast 5d-4f emission direct VUV into 5d levels but only revealed across bandgap. decay kinetics intra-center is a time 29 ns for Ce 17 Pr no significant...
Materials that luminesce after excitation with ionizing radiation are extensively applied in physics, medicine, security, and industry. Lanthanide dopants known to trigger crystal scintillation through their fast d–f emissions; the same is true for other important applications as lasers or phosphors lighting. However, this ability can be seriously compromised by unwanted anomalous emissions often found most common lanthanide activators. We report high-resolution X-ray-excited optical (IR UV)...
Ytterbium-doped wide-bandgap fluoride crystals CaF2, SrF2 and NaMgF3 have been measured using x-ray absorption near edge structure (XANES) on the L3 to determine ratio of trivalent divalent Yb ions present in crystals. This study improves upon previous XANES measurements dopant ion valency by taking into account emission transition probabilities for species instead simply assuming that relative concentrations may be determined excitation band areas. Trivalent ratios as high 5 are inferred...
The double phosphate KLuP 2 O 7 doped with Pr 3+ ions was prepared by solid-state reaction. material obtained characterized powder X-ray diffraction. luminescence spectroscopy and the excited state dynamics of this were studied upon excitation VUV synchrotron radiation. 5d-4 f emission both direct band gap detected assigned. decay kinetics is a time about 20 ns nearly temperature independent within range 8 - 300 K. Both energy transfer peculiarities revealed in study suggested good...