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Widening the Temperature Range of Luminescent Thermometers through the Intra‐ and Interconfigurational Transitions of Pr 3+
Author(s) -
Brites Carlos D. S.,
Fiaczyk Karolina,
Ramalho João F. C. B.,
Sójka Małgorzata,
Carlos Luís D.,
Zych Eugeniusz
Publication year - 2018
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201701318
Subject(s) - luminescence , atmospheric temperature range , materials science , range (aeronautics) , cryogenic temperature , thermometer , analytical chemistry (journal) , ion , atomic physics , optoelectronics , thermodynamics , physics , chemistry , composite material , organic chemistry
In this study, it is shown how the temperature range of luminescent thermometers can be widened in an unprecedented way by combining the intra‐ and interconfigurational transitions of the Pr 3+ ion in a single material. Using Sr 2 GeO 4 :Pr 3+ crystalline powders as an illustrative example, the implementation of luminescence thermometry is reported in the broadest temperature range up to now (17–600 K) with a remarkable performance: maximum relative sensitivity values of 9.0% · K −1 (at 22 K, cryogenic range), 0.6% · K −1 (at 300 K, physiological range), and 0.5% · K −1 (at 600 K, high‐temperature range) and minimum temperature uncertainty of 0.1 K.