Effect of Eu-doping on optical, structural and morphological properties of BaI.sub.2./sub. center dot nH.sub.2./sub.O powders

0497871 - FZÚ 2019 RIV NL eng J - Journal Article
Salamakha, T. - Buryi, Maksym - Tratsiak, Y.
Effect of Eu-doping on optical, structural and morphological properties of BaI₂ center dot nH₂O powders.
Optical Materials. Roč. 78, Apr (2018), s. 352-359. ISSN 0925-3467. E-ISSN 1873-1252
R&D Projects: GA MŠMT(CZ) LO1409; GA MŠMT(CZ) LM2015088; GA ČR GA17-09933S
EU Projects: European Commission(XE) 690599 - ASCIMAT
Institutional support: RVO:68378271
Keywords : luminescence * EPR * Eu²⁺ * powders * barium iodide * scintillators
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.687, year: 2018

The two-step approach to the Eu2+ doped BaI2.nH2O powders synthesis in Ar atmosphere from precursors containing different concentration of europium ions is reported. According to X-ray diffraction analysis the powders mainly consisted of BaI2.2H2O phase. Their morphological, structural and luminescent properties depend on the Eu-ions concentration. This was confirmed by combined luminescence and electron paramagnetic resonance study. Remarkably, in the host containing exclusively divalent cations, the Eu3+ was indirectly observed as well.
Permanent Link: http://hdl.handle.net/11104/0290342