Stabilization of light emitting Eu2+ centers inside Ca(Sr)I2:Eu particles in glass ceramics. The preliminary concept of synthesis
| Autor: | Vladimir Babin, Zdeněk Remeš, E. Trusova, Lucie Landová, Juraj Páterek, Y. Tratsiak, František Hájek, Maksym Buryi, Tatsiana Salamakha |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Recrystallization (geology) Process Chemistry and Technology Energy transfer Analytical chemistry Radioluminescence Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ion law.invention law visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Crystallite Ceramic Electron paramagnetic resonance |
| Zdroj: | Ceramics International. 47:29232-29252 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2021.07.088 |
| Popis: | Glass ceramics in the form of MI2:Eu crystalline particles grown in MO-B2O3 glass (M = Ca, Sr, Ba) through recrystallization from the alloyed melt were fabricated. Eu2+ ions were detected in the CaI2 and SrI2 crystalline particles (not in the BaI2) inside the corresponding glasses. Some amount of Eu2+ centers are expected to originate from the MO-B2O3 glass hosts as well. This was confirmed by correlated electron paramagnetic resonance (EPR), photo- and radioluminescence (PL, RL) measurements. Peculiarities of the Eu2+ distribution and incorporation into the glass ceramics samples as well as charge and energy transfer properties are discussed in detail. Optimal conditions leading to the enhancement of the Eu2+ emission from the CaI2 and SrI2 crystallites inside the glasses were determined. |
| Databáze: | OpenAIRE |
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