Luminescence Intensity Ratio Thermometry with Er<sup>3+</sup>: Performance Overview

The figures of merit of luminescence intensity ratio (LIR) thermometry for Er<sup>3+</sup> in 40 different crystals and glasses have been calculated and compared. For calculations, the relevant data has been collected from the literature while the missing data were derived from available...

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Bibliographic Details
Main Authors: Aleksandar Ćirić, Tamara Gavrilović, Miroslav D. Dramićanin
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/11/2/189
Description
Summary:The figures of merit of luminescence intensity ratio (LIR) thermometry for Er<sup>3+</sup> in 40 different crystals and glasses have been calculated and compared. For calculations, the relevant data has been collected from the literature while the missing data were derived from available absorption and emission spectra. The calculated parameters include Judd–Ofelt parameters, refractive indexes, Slater integrals, spin–orbit coupling parameters, reduced matrix elements (RMEs), energy differences between emitting levels used for LIR, absolute, and relative sensitivities. We found a slight variation of RMEs between hosts because of variations in values of Slater integrals and spin–orbit coupling parameters, and we calculated their average values over 40 hosts. The calculations showed that crystals perform better than glasses in Er<sup>3+</sup>-based thermometry, and we identified hosts that have large values of both absolute and relative sensitivity.
ISSN:2073-4352