Widening the Temperature Range of Luminescent Thermometers through the Intra- and Interconfigurational Transitions of Pr3+
authors Brites, CDS; Fiaczyk, K; Ramalho, JFCB; Sojka, M; Carlos, LD; Zych, E
nationality International
journal ADVANCED OPTICAL MATERIALS
author keywords high-temperature phosphors; intra- and interconfigurational transitions; luminescence thermometry; Pr3+ ion
keywords ENERGY-LEVEL LOCATIONS; THERMOGRAPHIC PHOSPHORS; PHOTOLUMINESCENCE PROPERTIES; TB
abstract 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 Pr3+ ion in a single material. Using Sr2GeO4:Pr3+ 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.
publisher WILEY-V C H VERLAG GMBH
issn 2195-1071
year published 2018
volume 6
issue 10
digital object identifier (doi) 10.1002/adom.201701318
web of science category Materials Science, Multidisciplinary; Optics
subject category Materials Science; Optics
unique article identifier WOS:000434035600007

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