A5058150837- Luminescence Properties of Advanced Materials
- Perovskite Materials and Applications
- Glass properties and applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- Lanthanide and Transition Metal Complexes
- Solid State Laser Technologies
- Optical properties and cooling technologies in crystalline materials
- Solid-state spectroscopy and crystallography
- Crystal Structures and Properties
- Radiation Detection and Scintillator Technologies
- Gas Sensing Nanomaterials and Sensors
- Advanced Condensed Matter Physics
- Nuclear materials and radiation effects
- Microwave Dielectric Ceramics Synthesis
- Nanoplatforms for cancer theranostics
- Inorganic Chemistry and Materials
- Ferroelectric and Piezoelectric Materials
- Magnetic and transport properties of perovskites and related materials
- Phase-change materials and chalcogenides
- Polydiacetylene-based materials and applications
- Bone Tissue Engineering Materials
- Multiferroics and related materials
- Mineralogy and Gemology Studies
Polish Academy of Sciences
2016-2025
Tampere University
2021-2024
Photonics (United States)
2021-2024
Włodzimierz Trzebiatowski Institute of Low Temperature and Structure Research
2015-2023
Wroclaw University of Applied Informatics "Horizon"
2021
University of Wrocław
2017-2019
We show that doping of multiferroic formates with various trivalent cations is a new route for the synthesis tunable luminescent multiferroics.
Incommensurately modulated crystal structure of a (2-methylimidazolium)tetraiodobismuthate(<sc>iii</sc>) thermochromic organic–inorganic hybrid.
A novel formate [(CH3)2NH2][Na0.5Cr0.5(HCOO)3] (DMNaCr) was prepared by a solvothermal method. This compound crystallizes in the perovskite-type metal framework (space group R3[combining macron]) with disordered dimethylammonium (DMA(+)) cations. X-ray diffraction, DSC, Raman and IR studies show that contrast to isostructural iron analogue [(CH3)2NH2][Na0.5Fe0.5(HCOO)3] (DMNaFe), DMNaCr does not exhibit any structural phase transition at low temperatures. behavior has been attributed smaller...
Eu3+ doped Ba2MgWO6 (BMW) double-perovskite was successfully synthesized for the first time by co-precipitation method. The synthesis procedure, crystal structure, as well morphology of obtained samples are presented. Domination 5D0-7F1 magnetic-dipole over forced electric-dipole transitions in emission spectra indicates that ions located high symmetry site with inversion center. Only one line assigned to 5D0-7F0 transition observed, confirming europium substituted only host cation site....
To fulfil the requirements of operating at low temperature in a harsh environment, investigation on optical thermometers plays an increasingly important role.
We present double-perovskite molybdate with the formula of Ba2MgMoO6 doped Sm3+ ions as a potential red phosphor to improve color characteristics white-light-emitting dioded (wLEDs). The new orange–red was synthesized using co-precipitation (CP) method, and then its structural spectroscopic properties were determined. Red emission at 642.6 nm dominates, which results from electric dipole (ED) transition 4G5/2 → 6H9/2 type, materials are characterized by short luminescence decay times....
Germanate tellurite glasses doped with Eu3+ and Tb3+ were synthesized by the conventional melt-quenching method. There is no indication of energy transfer between dopant ions in this host, but co-dopants exhibit excellent color purity 100% for 80% Tb3+. The co-doped glass exhibits yellow luminescence. quantum yield emission equal to 23% under 395 nm excitation. thermal quenching luminescence occurs at different temperature ranges, which enables sensing properties material. relative...
We report the synthesis, crystal structure, dielectric, vibrational and emission spectra of heterometallic MOFs, [C<sub>2</sub>H<sub>5</sub>NH<sub>3</sub>][Na<sub>0.5</sub>Cr<sub>x</sub>Al<sub>0.5−x</sub>(HCOO)<sub>3</sub>] (<italic>x</italic> = 0, 0.025, 0.5).
In this study, a novel nanostructure of fluoride red emitting phosphor is synthesized via soft templates. K 2 SiF 6 :Mn 4+ nanocrystals in the range 3-5 nm diameter are found inside porous nanoparticle hosts, forming unique dots-in-nanoparticles (d-NPs) structures with controlled optical properties. The d-NPs exhibit sharp and deep emission an excellent quantum yield ∼95.9%, ultra-high color purity corresponding x y CIE chromaticity coordinates 0.7102 0.2870, respectively. Moreover,...
We report the synthesis, crystal structure, and dielectric, vibrational emission spectra of two novel heterometallic perovskite-type metal-organic frameworks (MOFs) following formula: [(CH3)2NH2][K0.5Cr0.5(HCOO)3] (DMAKCr) [C2H5NH3][K0.5Cr0.5(HCOO)3] (EtAKCr). DMAKCr crystallizes in a trigonal structure (R3[combining macron] space group) undergoes an order-disorder phase transition to monoclinic system (P1[combining at about 190 K. The dielectric studies confirm presence first-order...
A bifunctional luminescent material is one of the most intriguing topics in recent years with significant growth number investigations. Herein, we report potential Ba2MgWO6 doped Er3+ as a candidate for white-light emitting phosphor and noncontact thermometry. The synthesis samples was carried out by co-precipitation method. influence dopant concentration on emission intensity, well capability temperature readout, investigated first time. highest intensity exhibits sample comprising 4% Er3+;...
The suitability of Ba2MgWO6 (BMW) double perovskite doped with Eu3+ for the construction an optical thermometer was tested. It has been shown that by controlling conditions BMW synthesis, sensitivity and useful range its work can be changed. Pure samples were prepared using mechano-chemical co-precipitation methods. Both absolute relative in relation to synthesis route estimated. findings proved modulated from 1.17%K-1 at 248 K, 1.5%K-1 120 K mechanochemical samples, respectively. These...
This work aimed to explore the temperature-sensing performance of La2MgTiO6:Er3+ double perovskites based on thermally coupled and uncoupled energy levels. Furthermore, crystal structure, chemical composition, morphology samples were investigated by powder X-ray diffraction, energy-dispersive spectroscopy, scanning electron microscopy, respectively. The most intense luminescence was observed for sample doped with 5% Er3+. temperature-dependent emission spectra La2MgTiO6:5% Er3+ in wide range...
The first biophotonic composite fiber with green persistent luminescence is reported. composites were drawn from preforms prepared by remelting a bioactive glass commercial luminescent microparticles (SrAl2O4:Eu2+,Dy3+). duration of the remelt step should be as short possible to limit decomposition micro-phosphors during preparation, evidenced using electron microscopy coupled elemental analysis. presence phosphors in inhibits drawing fibers diameter below about 400 µm. Although process...