Romana Kučerková
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View article: Defect engineering in Mg <sup>2+</sup> co-doped LuAG:Ce ceramics: Towards ultrahigh fast scintillation proportion
Defect engineering in Mg <sup>2+</sup> co-doped LuAG:Ce ceramics: Towards ultrahigh fast scintillation proportion Open
A slow scintillation component due to charge carrier capture at point defects is a serious issue in scintillator materials. Therefore, the fabrication of scintillators with a high proportion of fast components in the scintillation response…
View article: GSAG:Ce scintillator: material optimization and intrinsic bottlenecks
GSAG:Ce scintillator: material optimization and intrinsic bottlenecks Open
Sc 3+ at the dodecahedral site of the garnet structure (Sc-dh) created energy levels deeper in the bandgap and created an electron trap responsible for the TSL peak at the highest temperatures and the loss of light yield.
View article: GSAG:Ce scintillator: insights from yttrium admixture
GSAG:Ce scintillator: insights from yttrium admixture Open
Research on yttrium-admixed GSAG:Ce scintillators reveals that the stoichiometric composition enhances the light yield and reduces thermal quenching. It paves the way towards advanced cost-effective alternatives to GGAG:Ce scintillators.
View article: Bridgman method grown Cs <sub>2</sub> Li <sub>3</sub> I <sub>5</sub> : an inter-alkali metal scintillator with high lithium content
Bridgman method grown Cs <sub>2</sub> Li <sub>3</sub> I <sub>5</sub> : an inter-alkali metal scintillator with high lithium content Open
Cs 2 Li 3 I 5 : the first Bridgman method grown, lithium-rich crystal with high Z eff for efficient neutron and gamma radiation detection.
View article: Highly Luminous Scintillating Nanocomposites Enable Ultrafast Time Coincidence Resolution for γ‐rays Detection with Heterostructured Multilayer Scintillators
Highly Luminous Scintillating Nanocomposites Enable Ultrafast Time Coincidence Resolution for γ‐rays Detection with Heterostructured Multilayer Scintillators Open
Brighter fast scintillators are needed for advanced applications to acquire data with high signal‐to‐noise ratio in short time windows, like in the time‐of‐flight positron emission tomography (ToF‐PET) imaging technique for cancer. A new c…
View article: A fast GGAG:Ce(Mg) single crystal scintillator: LDFZM growth, characterization and electronic band structure calculation
A fast GGAG:Ce(Mg) single crystal scintillator: LDFZM growth, characterization and electronic band structure calculation Open
GGAG:Ce(Mg) crystals were prepared by the laser-diode floating zone method in oxygen over-pressure. Electronic band structure calculations for different compositions of GGAG were performed and discussed.
View article: Nanosecond photoluminescence decay in zinc molybdate oxide nanocrystals observed by TCSPC and phase shift methods
Nanosecond photoluminescence decay in zinc molybdate oxide nanocrystals observed by TCSPC and phase shift methods Open
Hydrothermally grown zinc molybdate oxide (ZMO) nanocrystals were prepared for their interesting scintillation properties at room temperature. Here we report on the comparison of two time resolved photoluminescence (PL) decay measurements …
View article: Scintillation properties of multilayered composite scintillators based on the YAG:Ce and TbAG:Ce single crystalline films and GAGG:Ce crystal substrates
Scintillation properties of multilayered composite scintillators based on the YAG:Ce and TbAG:Ce single crystalline films and GAGG:Ce crystal substrates Open
This work demonstrates current progress of our group in developing of two- and three-layered composite for radiation monitoring of various components of mixed ionization radiation fluxes based on the epitaxial structures of Ce3+ doped garn…
View article: Li2MnCl4 single crystal: new candidate for red-emitting neutron scintillator
Li2MnCl4 single crystal: new candidate for red-emitting neutron scintillator Open
Novel red-emitting scintillator Li2MnCl4 is proposed as a candidate for thermal neutron detection. It features high Li content, low density, low effective atomic number, and emission in red-NIR region. These characteristics make it an inte…
View article: Three-Layered Composite Scintillator Based on the Epitaxial Structures of YAG and LuAG Garnets Doped with Ce3+ and Sc3+ Impurities
Three-Layered Composite Scintillator Based on the Epitaxial Structures of YAG and LuAG Garnets Doped with Ce3+ and Sc3+ Impurities Open
In this study, we propose novel three-layer composite scintillators designed for the simultaneous detection of different ionizing radiation components. These scintillators are based on epitaxial structures of LuAG and YAG garnets, doped wi…
View article: Exciton-harvesting enabled efficient charged particle detection in zero-dimensional halides
Exciton-harvesting enabled efficient charged particle detection in zero-dimensional halides Open
Materials for radiation detection are critically important and urgently demanded in diverse fields, starting from fundamental scientific research to medical diagnostics, homeland security, and environmental monitoring. Low-dimensional hali…
View article: On the origin of the light yield enhancement in polymeric composite scintillators loaded with dense nanoparticles
On the origin of the light yield enhancement in polymeric composite scintillators loaded with dense nanoparticles Open
Fast emitting polymeric scintillators are requested in advanced applications where high-speed detectors with large signal-to-noise ratio are needed. However, their low density implies a weak stopping power of high energy radiations, thus a…
View article: Deciphering the Mechanism of Ultrafast Scintillation in 1D Silver Halides
Deciphering the Mechanism of Ultrafast Scintillation in 1D Silver Halides Open
The development of ultrafast scintillators is critical to the GHz X‐ray and time‐of‐flight (TOF) imaging techniques. Low‐dimensional silver‐based halides have emerged as promising candidates due to high radioluminescence efficiency and ult…
View article: On the Origin of the Light Yield Enhancement in Polymeric Composite Scintillators Loaded with Dense Nanoparticles
On the Origin of the Light Yield Enhancement in Polymeric Composite Scintillators Loaded with Dense Nanoparticles Open
Fast emitting polymeric scintillators are requested in advanced applications where high speed detectors with a large signal-to-noise ratio are needed. However, their low density implies a weak stopping power of high energy radiation and th…
View article: Growth and Spectroscopic Properties of Pr<sup>3+</sup> Doped Lu<sub>2</sub>S<sub>3</sub> Single Crystals
Growth and Spectroscopic Properties of Pr<sup>3+</sup> Doped Lu<sub>2</sub>S<sub>3</sub> Single Crystals Open
For the first time Lu$_2$S$_3$ (undoped and Pr-doped) single crystals were\nsuccessfully grown from melt using micro-pulling-down (mPD) technique.\nCustomization of halide mPD apparatus allowed us to grow rod-shaped (\\O 2 mm\nand length a…
View article: Exciton-Harvesting Enabled Efficient Charged Particle Detection in Zero-Dimensional Halides
Exciton-Harvesting Enabled Efficient Charged Particle Detection in Zero-Dimensional Halides Open
Materials for radiation detection are critically important and urgently demanded in diverse fields starting from fundamental scientific research to medical diagnostics, homeland security, and environmental monitoring. Low-dimensional halid…
View article: Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineering
Advances in Ce3+ doped Y1±xAlO3 (x≠0) single crystal perovskite scintillators through nonstoichiometric engineering Open
The influence of nonstoichiometric engineering on the scintillation properties of Ce3+ doped yttrium aluminum perovskite (YAP:Ce) crystals was investigated. Crystals with slight yttrium excess (Y1·004AlO3:Ce), yttrium deficiency (Y0·994AlO…
View article: Li <sub>2</sub> MnCl <sub>4</sub> single crystal: a new candidate for a red-emitting neutron scintillator
Li <sub>2</sub> MnCl <sub>4</sub> single crystal: a new candidate for a red-emitting neutron scintillator Open
Li 2 MnCl 4 : combining light elements to create a novel red-emitting scintillator for neutron detection.
View article: Correction: Li<sub>2</sub>MnCl<sub>4</sub> single crystal: a new candidate for a red-emitting neutron scintillator
Correction: Li<sub>2</sub>MnCl<sub>4</sub> single crystal: a new candidate for a red-emitting neutron scintillator Open
Correction for ‘Li 2 MnCl 4 single crystal: a new candidate for a red-emitting neutron scintillator’ by Vojtěch Vaněček et al. , Mater. Adv. , 2024, https://doi.org/10.1039/d4ma00697f.
View article: Promising single crystal host for bulk scintillators: luminescence and energy migration in (Gd,Y)AlO <sub>3</sub>
Promising single crystal host for bulk scintillators: luminescence and energy migration in (Gd,Y)AlO <sub>3</sub> Open
By means of the photoluminescence decay temperature dependence, the energy migration in the Gd-sublattice was investigated in a promising host material, (Gd,Y)AlO 3 , intended for Ce-doped bulk scintillators for gamma radiation detection.
View article: Compositional regulation of multi-component GYGAG:Ce scintillation ceramics: Self-sintering-aid effect and afterglow suppression
Compositional regulation of multi-component GYGAG:Ce scintillation ceramics: Self-sintering-aid effect and afterglow suppression Open
(Gd,Y,Ce)3(YxGa1−x)2GaAl2O12 (GYGAG:Ce) scintillation ceramics with different Y excess, where x = 0.005−0.08, were fabricated by the solid-state reaction method. The effects of stoichiometry on the phase composition, optical quality, and m…
View article: New types of composite scintillators based on the single crystalline films and crystals of Gd3Al5-xGaxO12:Ce garnets
New types of composite scintillators based on the single crystalline films and crystals of Gd3Al5-xGaxO12:Ce garnets Open
This work presents the results on creation of novel types of composite scintillators based on Ce3+ doped Gd3Al5-xGaxO12 single crystalline films grown by the LPE method using PbO–B2O3 flux onto substrate-scintillators prepared from commerc…
View article: Towards deliberate design of persistent phosphors: a study of La–Ga admixing in LuAG:Ce crystals to engineer elemental homogeneity and carrier trap depths
Towards deliberate design of persistent phosphors: a study of La–Ga admixing in LuAG:Ce crystals to engineer elemental homogeneity and carrier trap depths Open
Persistent luminescence in Lu 3 Al 2 Ga 2 O 12 :Ce,La crystal was studied. La codoping elongated luminescence and increased trapping centers. The influence of La on crystal growth, structure, and Al/Ga sublattices was analyzed.