Wyszukiwarka
dr Karol Szczodrowski
Zatrudnienie
- w University of Gdańsk
Publikacje
Filtry
wszystkich: 31
Katalog Publikacji
Rok 2020
Rok 2019
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Enhanced photocatalytic activity of transparent carbon nanowall/TiO2 heterostructures
PublikacjaThe synthesis of novel tunable carbon-based nanostructure represented a pivotal point to enhance the efficiency of existing photocatalysts and to extend their applicability to a wider number of sustainable processes. In this letter, we describe a transparent photocatalytic heterostructure by growing boron-doped carbon nanowalls (B-CNWs) on quartz, followed by a simple TiO2 sol-gel deposition. The effect on the thickness and boron-doping...
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Morphology, surface properties and photocatalytic activity of the bismuth oxyhalides semiconductors prepared by ionic liquid assisted solvothermal method
PublikacjaThis is the first report of the effect of the ILs cation type (imidazolium, pyridinium and pyrrolidinium) on the morphology, surface properties and photoactivity of BiOX semiconductors type obtained by solvothermal method in glycerol. The various ionic liquids (IL) cation type as a halogen source and templating agent for the synthesis of the bismuth oxyhalides nanoparticles has been systematically investigated. The role of ILs...
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The influence of Si4+ co-doping on the spectroscopic properties of β-NaCaPO4:Eu2+/Eu3+
Publikacja
Rok 2018
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SURFACE AND SPECTROSCOPIC PROPERTIES OF 1,8-DIAZAFLUOREN-9-ONE IN TITANIUM DIOXIDE THIN FILMS
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The role of compensation defects in Eu3+ stabilization under reductive atmosphere in Sr2SiO4 matrix
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Up-conversion white emission and other luminescence properties of a YAG:Yb2O3·Tm2O3·Ho2O3@SiO2 glass-nanocomposite
PublikacjaWe report on a glass-nanocomposite material consisting of yttrium aluminum garnet (Y3Al5O12, YAG) nanocrystals co-doped with Yb3+, Tm3+ and Ho3+ ions as well as entrapped into a SiO2 xerogel. This 94YAG·5Yb2O3·0.8Tm2O3·0.2Ho2O3@SiO2 (abbr. YAG:YbTmHo@SiO2) nanocomposite material has been prepared by sol–gel procedure. Its structure and morphology has been characterized by means of X-ray diffraction (XRD) and scanning electron microscope...
Rok 2017
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A white phosphor based on oxyfluoride nano-glass-ceramics co-doped with Eu3+ and Tb3+: Energy transfer study
PublikacjaStrontium fluoride nanocrystals doped separately with Ln3+ = Eu3+ or Tb3+ ions (95SrF2·5LnF2), as well as co-doped with both the ions (95SrF2·Eu4Tb) were synthesized for comparison. Then, glass-ceramics consisting of the mono-doped or di-doped SrF2 nanocrystals incorporated into amorphous silica (90SiO2·9.5SrF2·0.5Ln or 90SiO2·9.5SrF2·0.1EuF3·0.4Tb) were prepared by sol-gel procedure. The studied materials were characterized by...
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High pressure studies of Eu2+ and Mn2+ doped NaScSi2O6 clinopyroxenes
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Novel inorganic xerogels doped with CaWO 4 :xDy: Synthesis, characterization and luminescence properties
PublikacjaA series of novel phosphors based on silica xerogel doped with CaWO4:xDy(III) with various concentration of dysprosium ion was synthesized over a temperature of 800 C. The thermal analysis, XRD measurement and spectroscopic investigations of these materials are presented in this study. Steady state luminescence, luminescence excitation spectra as well as emission spectra have been measured. Under the ultraviolet light, the prepared...
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The influence of charge compensation defects on the spectroscopic properties of europium doped Ca9Y(PO4)7
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The Influence of Synthesis Temperature on Manufacturing and Properties of SrSi2O2N2:Eu2+ Powders
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White emitting GeO2PbO Bi2O3SrF2 glass and nano-glass ceramics co-doped with Eu3+, Tb3+ and Tm3+ ions
Publikacja
Rok 2016
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Spectroscopic properties and location of the Tb3+ and Eu3+ energy levels in Y2O2S under high hydrostatic pressure
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Spectroscopic properties and location of the Tb3+ and Eu3+ energy levels in Y2O2S under high hydrostatic pressure
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Stabilization of Eu3+ under a reductive atmosphere by the Al3+ co-doping of Sr2SiO4:Eu2+/Eu3+
Publikacja
Rok 2015
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Corrigendum to “Binding energies of Eu2+ and Eu3+ ions in β-Ca2SiO4 doped with europium” [Opt. Mater. 35 (2013) 2107–2114]
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Influence of Ti4+ on the long lasting luminescence of Sr2SiO4:Eu2+
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Optical processes in YVO4:Eu3+across zircon-to-scheelite phase transition
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White emitting phosphors based on glasses of the type 10AlF3–10TiO2–39PbO–30H3BO3–10SiO2–xEu2O3–(1−x)Tb2O3: An energy transfer study
Publikacja
Rok 2014
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Charge transfer and europium trapped exciton states in Eu<sup>3+</sup>/Eu<sup>2+</sup> doped phosphors
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Dosimetric features of strontium orthosilicate (Sr2SiO4) doped with Eu2+
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Equation of state for Eu-doped SrSi2O2N2
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High pressure effect on charge transfer transition in Y2O2S:Eu3+
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High-pressure X-ray Diffraction Study of SrSi2O2N2:Eu2+
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Luminescent GeO2–Pb–Bi2O3 glasses co-doped with Tb3+1 and Eu3+: Excitation energy transfer and color chromaticity
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Thickness and structure change of titanium(IV) oxide thin films synthesized by the sol–gel spin coating method
Publikacja
Rok 2013
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Binding energies of Eu2+ and Eu3+ ions in β-Ca2SiO4 doped with europium
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Synthesis and luminescence characteristics of Dy3+ ions in silica xerogels doped with Ln2−xDyx(WO4)3
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Time evolution of luminescence of Sr2SiO4:Eu2+
Publikacja
Rok 2012
wyświetlono 807 razy