¹S₀-luminescence in Ca₁₋ₓPrxF₂₊ₓ crystals
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НТК «Інститут монокристалів» НАН України
Анотація
Luminescence properties of CaF₂:Pr (0.2 mol %) and Ca₀.₆₅Pr₀.₃₅F₂.₃₅ crystals were studied at 10 K. Excitation and emission spectra show two types of the Pr³⁺ centers with the typical ¹S₀ —> 4f² radiative transitions. High level of rare-earth ions aggregation in CaF² and peculiarities of the defect structure in Ca₁₋ₓPrₓF₂₊ₓ solid solutions point to the formation of Pr²⁺-based clusters. Emission from ¹S₀-level is attributed to Pr³⁺ ions included in the clusters.
Опис
Теми
Characterization and properties
Цитування
¹S₀-luminescence in Ca₁₋ₓPrxF₂₊ₓ crystals / I.A. Boiaryntseva, N.V. Shiran, A.V. Gektin, G.B. Stryganyuk, A.N. Belsky, K. Shimamura // Functional Materials. — 2012. — Т. 19, № 2. — С. 192-196. — Бібліогр.: 15 назв. — англ.