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Exciton interaction with Ce3+ and Ce4+ ions in (LuGd)3(Ga,Al)5O12 ceramics
(Elsevier B.V., 2021)
Scintillators based on Ce-doped garnets are regularly co-doped with Mg2+ or Ca2+ to form Ce ions in 4+ state and reduce undesired afterglow. However overly high Ce4+ concentration leads to poor light yield performance. In ...
Study of phase composition, photocatalytic activity, and photoluminescence of TiO2 with Eu additive produced by the extraction-pyrolytic method
(Elsevier, 2021)
Due to the unique properties and wide array of applications of nanocrystalline materials based on titanium dioxide, the study of new synthesis approaches remains relevant. In this study, within the framework of the ...
Band Gap Engineering and Trap Depths of Intrinsic Point Defects in RAlO3 (R = Y, La, Gd, Yb, Lu) Perovskites
(American Chemical Society, 2021)
The possibility of band gap engineering (BGE) in RAlO3(R = Y, La, Gd, Yb, Lu) perovskites in the context of trap depths of intrinsic point defects was investigated comprehensively using experimental and theoretical approaches. ...
Toward On-Line Slag Composition Analysis: Optical Emissions from Laboratory Electric Arc
(Springer, 2021)
Electric arc furnaces and ladle furnaces have an important role in the future of steelmaking where CO 2 emissions have to be mitigated to an acceptable level. One way to address this goal is to optimize and improve the ...
Optical properties of powder and ceramics of aluminium oxynitride obtained by self-propagating high-temperature synthesis
(Lithuanian Physical Society, 2021)
The synthesis method of aluminium oxynitride (AlON) powders by nitriding of Al/Al2 O3 mixture under high-pressure nitrogen is proposed. The novelty of this method consists in adding KClO4 or Mg(ClO4 )2 and extra Al into ...
First Principles Calculations of Atomic and Electronic Structure of Ti3+Al- and Ti2+Al-Doped YAlO3
(Multidisciplinary Digital Publishing Institute (MDPI), 2021)
In this paper, the density functional theory accompanied with linear combination of atomic orbitals (LCAO) method is applied to study the atomic and electronic structure of the Ti3+ and Ti2+ ions substituted for the host ...
Performance and characterization of the FinEstBeAMS beamline at the MAX IV Laboratory
(Wiley-Blackwell, 2021)
FinEstBeAMS (Finnish-Estonian Beamline for Atmospheric and Materials Sciences) is a multidisciplinary beamline constructed at the 1.5 GeV storage ring of the MAX IV synchrotron facility in Lund, Sweden. The beamline covers ...
Vacancy defects in Ga2O3: First-principles calculations of electronic structure
(Multidisciplinary Digital Publishing Institute (MDPI), 2021)
First-principles density functional theory (DFT) is employed to study the electronic structure of oxygen and gallium vacancies in monoclinic bulk β-Ga2 O3 crystals. Hybrid exchange– correlation functional B3LYP within the ...
Untangling the controversy on Ce3+luminescence in LaAlO3crystals
(Royal Society of Chemistry, 2022)
Aluminum perovskites represent an important group of promising scintillation materials with excellent proportionality and energy resolution, but due to difficulties in crystal growth not much attention has been paid to ...
Study of the Effect of Two Phases in Li4SiO4–Li2SiO3 Ceramics on the Strength and Thermophysical Parameters
(MDPI, 2022)
The paper studies the effect of Li2SiO3/Li4SiO4 phase formation in lithium-containing ceramics on the strength and thermophysical characteristics of lithium-containing ceramics, which have great prospects for use as blanket ...