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Title: | Thermometric Judd-Ofelt model for Dy<sup>3+</sup> ion tested in CaYAlO<inf>4</inf> host and evaluation of its sensing performances for luminescence thermometry | Authors: | Martinović, Ana Milićević, Bojana Periša, Jovana Ristić, Zoran Stojadinović, Stevan Dramićanin, Miroslav D. Ćirić, Aleksandar |
Keywords: | Fluorescence intensity ratio;Judd-Ofelt;Luminescence intensity ratio;Luminescence thermometry | Issue Date: | 1-Oct-2023 | Journal: | Physica B: Condensed Matter | Abstract: | Luminescence thermometry uses temperature-dependent emission of light for remote sensing. Dy3+ is established as a perspective ion for high-temperature probes, but given that there is an infinite number of potential hosts it is impossible to find conventionally the one with the best performance. Judd-Ofelt thermometric model can predict sensitivities but it was not yet experimentally validated on Dy3+ ion. Pure phase CaYAlO4:Dy3+ powder was synthesized via the modified Pechini method. Photoluminescence spectra were taken from 300 to 600 K. Luminescence intensity ratio was estimated using 4I15/2 and 4F9/2 levels. Experimentally obtained thermometric parameters and sensitivities showed an excellent matching with those obtained from the Judd-Ofelt, indicating the potential application of the Judd-Ofelt model for fast assessment of Dy3+-doped luminescent sensor thermometric perspective. The maximum absolute and relative sensitivities are ∼0.001 K−1 at 600 K and ∼1.4% K−1 at 300 K, respectively. The optimum temperature range for the CaYAlO4:Dy3+ probe is from 370 to 616 K. |
URI: | https://physrep.ff.bg.ac.rs/handle/123456789/1320 | ISSN: | 09214526 | DOI: | 10.1016/j.physb.2023.415096 |
Appears in Collections: | Journal Article |
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