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SM ISO690:2012 NAZAROV, Michael V., ZAMORYANSKAYA, Maria. Luminescence of yttrium tantalate doubly activated with europium and terbium under X-ray and electron beam excitations. In: Moldavian Journal of the Physical Sciences, 2022, nr. 1(21), pp. 18-24. ISSN 1810-648X. DOI: https://doi.org/10.53081/mjps.2022.21-1.01 |
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Moldavian Journal of the Physical Sciences | ||||||
Numărul 1(21) / 2022 / ISSN 1810-648X /ISSNe 2537-6365 | ||||||
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DOI:https://doi.org/10.53081/mjps.2022.21-1.01 | ||||||
Pag. 18-24 | ||||||
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This paper reports the luminescence spectra of YTaO4 activated with rare-earth ions, such as Eu3+ and Tb3+. The effect of these rare-earth ions on the luminescence of yttrium tantalate phosphors is studied. The luminescent properties are studied under X-ray and electron beam excitations. It is found that, under these excitations, the emission centers of the rare-earth activators (Eu3+, Tb3+) efficiently contribute to the overall luminescence. Color cathodoluminescence images clearly show the dependence of chromaticity on the different activators. These rare-earth activated phosphors exhibiting various luminescence chromaticities are promising materials for optoelectronic applications and for X-ray intensifying screens in medical diagnosis, because they provide a broad variation of visible photoluminescence from blue to red. |
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Cuvinte-cheie YTaO4, YTaO4:Eu3, Tb3, cathodoluminescence., YTaO4, YTaO4:Eu3, Tb3, catodoluminiscenţă |
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