A5054067442- Luminescence Properties of Advanced Materials
- Solid State Laser Technologies
- Glass properties and applications
- Radiation Detection and Scintillator Technologies
- Photorefractive and Nonlinear Optics
- Solid-state spectroscopy and crystallography
- Nuclear materials and radiation effects
- Inorganic Chemistry and Materials
- Atomic and Subatomic Physics Research
- Crystal Structures and Properties
- Perovskite Materials and Applications
- Luminescence and Fluorescent Materials
- Electronic and Structural Properties of Oxides
- Semiconductor materials and devices
- Spectroscopy and Laser Applications
- Advanced Sensor and Energy Harvesting Materials
- Quantum Dots Synthesis And Properties
- Ammonia Synthesis and Nitrogen Reduction
- bioluminescence and chemiluminescence research
- High-pressure geophysics and materials
- Lanthanide and Transition Metal Complexes
- Energetic Materials and Combustion
- Ion-surface interactions and analysis
- Mineralogy and Gemology Studies
- Radioactive element chemistry and processing
University of Gdańsk
2013-2024
Institute of Experimental Physics of the Slovak Academy of Sciences
2016-2017
Silesian University of Technology
2015
Endowing a single material with various types of luminescence, that is, exhibiting simultaneous optical response to different stimuli, is vital in fields. A photoluminescence (PL)- and mechanoluminescence (ML)-based multifunctional sensing platform built by combining heterojunctioned ZnS/CaZnOS:Mn2+ mechano-photonic materials using 3D-printing technique fiber spinning. ML-active particles are embedded micrometer-sized cellulose fibers for flexible devices capable emitting light driven...
A 0.25% iron (Fe3+)-doped LiGaO2 phosphor was synthesized by a high-temperature solid-state reaction method. The characterized utilizing X-ray diffraction (XRD), scanning electron microscopy (SEM), high-pressure photoluminescence, and photoluminescence decay measurement techniques using diamond anvil cells (DACs). powder analysis shows that the is β polymorph of with an orthorhombic crystallographic structure at room temperature. SEM result also confirms presence well-dispersed...
Distinct types of luminescence that are activated by various stimuli in a single material offer exciting developmental opportunities for functional materials. A versatile sensing platform exhibits photoluminescence (PL), persistent (PersL), and mechanoluminescence (ML) is introduced, which enables the sensitive detection temperature, pressure, force/stress. The developed Sr
In this work, the temperature and high-pressure behaviors of Mn3+-doped garnet-type Ca3Ga2Ge3O12 single crystals have been investigated by means photoluminescence Raman spectroscopy, respectively. The Jahn–Teller stabilization energy in 5E ground state was found to be 1630 cm–1, being as much 6 times greater than that 5T2 excited state, is, 237 cm–1. room-temperature emission spectrum is dominated spin-allowed → transition at 670 nm upon 532 excitation. dependences spectra time decays reveal...
A theoretical model of the effect inhomogeneous broadening on luminescence lineshape ${\mathrm{Cr}}^{3+}$ is developed and applied to disordered system ${\mathrm{Cr}}^{3+}:{\mathrm{LiTaO}}_{3}.$ At ambient pressure, occupies primarily low-field sites in ${\mathrm{LiTaO}}_{3}$ exhibits broad ${}^{4}{\stackrel{\ensuremath{\rightarrow}}{{T}_{2}}}^{4}{A}_{2}$ emission. The induction a $\ensuremath{\rightarrow}$ high-field transition with pressure led stabilization narrow, well-resolved...
The incorporation of aluminum ions into the Sr<sub>2</sub>SiO<sub>4</sub>:Eu causes stabilization Eu<sup>3+</sup> under reductive atmosphere and concentration ratio europium in both oxidation states ([Eu<sup>3+</sup>]/[Eu<sup>2+</sup>]) can be controlled by changing Al<sup>3+</sup> content.
Spectroscopic properties of ${\mathrm{Ce}}^{3+}$ in ${\mathrm{Gd}}_{3}{\mathrm{Sc}}_{2}{\mathrm{Al}}_{3}{\mathrm{O}}_{12}$ have been investigated by high-pressure luminescence and absorption spectroscopy up to 200 kbar. The emission bands originating from $5d\ensuremath{\leftrightarrow}4f$ transitions were observed shift red with pressure at a rate $\ensuremath{-}7.9{\mathrm{cm}}^{\ensuremath{-}1}/\mathrm{kbar}$ $\ensuremath{-}15.2{\mathrm{cm}}^{\ensuremath{-}1}/\mathrm{kbar},$ respectively....
An alternative approach has been adopted to construct novel low-cost laboratory equipment for measuring the mechanical impact-induced mechanoluminescence (I-ML) properties of materials with high accuracy and sensitivity. In this setup, correlation between loss kinetic energy projectiles during impact intensity is studied by changing angle incidence shooting. The range initial controlled selecting projectile masses. designed apparatus also useful analyzing mechanism ML, comparison time...
Electronic structure and optical properties of the Ce3☎ in YAG has been investigated by standard spectroscopy (photoluminescence, absorption excitation spectra) high pressure spectroscopy. The bandshape emission spectrum for different pressures analyzed influence on energy 5d1 states electron-lattice coupling have determined. significant red shift peak band (the respective coefficient equal to—12cm−1/kbar) obtained. understood taking into account induced increase level splitting strength.
A series of strontium orthotitanate (Sr2TiO4) samples doped with 2% a mole europium, praseodymium, and erbium were obtained using the solid-state synthesis method. The X-ray diffraction (XRD) technique confirms phase purity all lack influence dopants at given concentration on structure materials. optical properties indicate, in case Sr2TiO4:Eu3+, two independent emission (PL) excitation (PLE) spectra attributed to Eu3+ ions sites different symmetries: low - excited 360 nm high 325 nm, while,...
Presenting a novel insight into Mn 2+ luminescence processes in the ZnS nanophosphor and revealing its unique high-pressure decay behaviour self-powered mechanoluminescence.
We present the experimental results for photoacoustic and optical absorption spectra of as-grown, air-annealed, hydrogen-annealed yttrium aluminum garnet (YAG):Cr,Mg crystals. The were analyzed discussed both ${\mathrm{Cr}}^{3+}$ ${\mathrm{Cr}}^{4+}$ centers in host lattice within framework Rosencwaig-Gersho (RG) theory that was extended by considering existence radiative processes emitting centers. RG reasonably predicted a low excitation-energy-independent quantum efficiency YAG but failed...
We present ambient-pressure luminescence, luminescence excitation spectra, and decays high-pressure of chromium doped $\mathrm{CaO}\ensuremath{-}{\mathrm{Ga}}_{2}{\mathrm{O}}_{3}\ensuremath{-}{\mathrm{GeO}}_{2}$ glass material. The material has been found to be very inhomogeneous with emission ${\mathrm{Cr}}^{3+}$ ions that are in different coordinated environments. Although the broadband dominates overall at ambient pressure, results indicate mainly originates from high-field sites is...
The influence of high pressure on the emission color coordinates jervisite NaScSi<sub>2</sub>O<sub>6</sub>:Eu(5%),Mn(15%) phosphor.
In this study, a series of Ca<sub>9</sub>Y(PO<sub>4</sub>)<sub>7</sub> compounds doped with 5% Eu ions and different [Y]/[Ca] ratios was synthesized using the Pechini method.
The Sr<sub>2</sub>Si<sub>0.95</sub>Ti<sub>0.05</sub>O<sub>4</sub>:Eu<sup>2+</sup> phosphor was synthesized using titanium modified silica SBA-15 or titania as precursors <italic>via</italic> a solid state synthesis method.
Photoluminescence of Ba2SiO4 and Ca2SiO4 activated with Eu2+ was investigated at various temperatures (from 10 K to 300 K) pressures ambient 200 kbar). At pressure room temperature, under UV excitation both phosphors yielded a green emission band maxima 505 nm 510 for Ca2SiO4, respectively. The energies these bands depended on pressure; the shifts were −12:55 cm−1/kbar Ba2SiO4:Eu2+; −5:59 Ca2SiO4:Eu2+. In case Ca2SiO4:Eu2+, we observed additional broadband lower maximum 610 (orange band)....