A5044197393- Luminescence Properties of Advanced Materials
- Solid State Laser Technologies
- Crystal Structures and Properties
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Photorefractive and Nonlinear Optics
- Glass properties and applications
- Multiferroics and related materials
- Ferroelectric and Piezoelectric Materials
- Advanced Condensed Matter Physics
- Optical and Acousto-Optic Technologies
- Nonlinear Optical Materials Studies
- Liquid Crystal Research Advancements
- Solid-state spectroscopy and crystallography
- Perovskite Materials and Applications
- Lanthanide and Transition Metal Complexes
- Microwave Dielectric Ceramics Synthesis
- Acoustic Wave Resonator Technologies
- Radiation Detection and Scintillator Technologies
- High-pressure geophysics and materials
- Molecular spectroscopy and chirality
- Nonlinear Optical Materials Research
- Magnetic and transport properties of perovskites and related materials
- Laser-Ablation Synthesis of Nanoparticles
- Terahertz technology and applications
Military University of Technology in Warsaw
2015-2024
University of Warsaw
2017-2019
Institute of Physics
2018
University of Silesia in Katowice
2018
Częstochowa University of Technology
2014
Pure Bi7Fe3Ti3O21 ceramic material and gadolinium ion (Gd3+)-doped ones were prepared by solid-state reaction method using simple oxides. The findings of the XRD measurements confirmed initial author’s assumption that dopant ions substituted in perovskite blocks influenced dimensions unit cell parameters. All obtained materials are single-phase show an orthorhombic structure with Fm2m space group. Microstructure studies admixture doping changes microstructure base material, changing grain...
We report details on the synthesis and properties of barium praseodymium tungstate, Ba2PrWO6, a double perovskite that has not been synthesized before. Room-temperature (RT) powder X-ray diffraction identified most probable space group (SG) as monoclinic I2/m, but it was only slightly distorted from cubic structure. photoelectron spectroscopy confirmed initial (postsynthesis) material contained in both 3+ 4+ charge states. The former (Pr3+) disappeared after exposure to UV light at RT....
An improvement of the thermometric performance a single band ratiometric luminescent thermometer by boosting its relative sensitivity can be executed either an increase probability excited state absorption or enhancement luminescence thermal quenching upon ground absorption. In this article, to achieve latter, metal-to-metal charge transfer process has been involved. To evaluate utility approach, spectroscopic properties KGd(WO4)2 tungstate doped with different concentrations Tb3+ ions were...
Bi2ZnOB2O6 single crystal doped with Nd3+ ions is characterized by high values of nonlinear optical coefficients as well the effective luminescence excited ions, which make this system a unique candidate for near infrared to visible laser converters. The investigated Bi2ZnOB2O6:Nd3+ was grown means Kyropoulos method. vibrational properties were studied using μ-Raman spectroscopy. In particular, Raman-active modes detected in parallel and cross-polarizations assigned vibrations characteristic...
Improvement of the nonlinear optical properties, mainly photoinduced enhancement effective second harmonic generation was observed in Bi3TeBO9 (BTBO) crystals under irradiation two external UV laser beams. The effect is caused by an interaction coherent photoinducing beams nitrogen with wavelength 371 nm near fundamental edge, resulting formation additional anisotropy. To explain phenomenon and establish general features electronic structure, band structure calculations, as well density...
Abstract An efficient near-infrared quantum cutting process by cooperative down-conversion of active Bi 3+ and Nd ions was demonstrated in 3 TeBO 9 :Nd phosphors. In particular, the emission enhanced a series novel microcrystalline powders doped with various concentrations investigated. order to investigate luminescent properties BTBO:Nd powders, excitation spectra fluorescence decay time were measured analyzed. at 890 1064 nm excited 327 (via energy transfer from ions) 586.4 (directly...
In searching for new functional self-assembling materials a multicomponent ferroelectric liquid crystalline mixtures with features appropriate utilization in photonic and electro-optic devices have been designed. Designed are composed of bicyclic pyrimidine achiral compounds chiral dopants an oligophenyl rigid core two homochiral terminal chains. Basic mesomorphic, electro-optical structural properties carefully studied discussed. For several stable enantiotropic phase very good alignment...
This comprehensive work showcases two novel, rock-salt-type minerals in the form of amphoteric cerium-tungstate double perovskite and ilmenite powders created via a high-temperature solid-state reaction inert gases. The presented studies have fundamental meaning will mainly focus on detailed synthesis description undoped structures, researching their possible polymorphism various conditions hinting at some nontrivial physicochemical properties like charge transfer for upcoming optical after...
The efficiency of the 1.5 μm emission associated with 4I13/2 → 4I15/2 transition Er3+ ions a series and Yb3+/Er3+-doped Bi2ZnOB2O6 microcrystalline powders was investigated. is an excellent nonlinear optical material as well good host matrix for luminescent rare-earth ions. investigated were synthesized by means modified Pechini method their orthorhombic structure Pba2 space group confirmed XRD measurements. vibrational properties Bi2ZnOB2O6:Yb3+/Er3+ studied using μ-Raman spectroscopy. low...
An efficient near-infrared emission of Yb3+ ions sensitized by Bi3+ was revealed in Bi3TeBO9:Yb3+ microcrystalline powders. doped with different concentrations (0.5, 1.0, 2.5, 4.0, and 7.5 at %) were synthesized means the modified Pechini method. The structure, morphology, elemental composition samples investigated using X-ray diffraction, scanning electron microscopy, energy-dispersive spectroscopy techniques. μ-Raman spectroscopic measurements allowed us to determine energy vibrations...
The first example of hockey-stick compounds exhibiting a smectic I phase with direct transition to the isotropic phase.