Stabilization of light emitting Eu.sup.2+./sup. centers inside Ca(Sr)I.sub.2./sub.:Eu particles in glass ceramics. The preliminary concept of synthesis

0548819 - FZÚ 2022 RIV GB eng J - Článek v odborném periodiku
Buryi, Maksym - Salamakha, T. - Babin, Vladimir - Páterek, Juraj - Hájek, František - Remeš, Zdeněk - Landová, Lucie - Trusova, E. - Tratsiak, Y.
Stabilization of light emitting Eu²⁺ centers inside Ca(Sr)I₂:Eu particles in glass ceramics. The preliminary concept of synthesis.
Ceramics International. Roč. 47, č. 20 (2021), s. 29232-29252. ISSN 0272-8842. E-ISSN 1873-3956
Grant CEP: GA MŠMT(CZ) EF16_019/0000760
Grant ostatní: OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760; AV ČR(CZ) NASB-20-03
Program: Bilaterální spolupráce
Institucionální podpora: RVO:68378271
Klíčová slova: magnetic properties * optical properties * halides * glass ceramics
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 5.532, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.ceramint.2021.07.088

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.
Trvalý link: http://hdl.handle.net/11104/0324870