A1 Journal article (refereed), original research

Eu3+ -doped ratiometric optical thermometers: Experiment and Judd-Ofelt modelling

Open Access publication

Publication Details
Authors: Kolesnikov Ilya E., Mamonova Daria V., Kurochkin Mikhail A., Kolesnikov Evgenii Yu, Lähderanta Erkki
Publisher: Elsevier
Publication year: 2021
Language: English
Related Journal or Series Information: Optical Materials
Volume number: 112
ISSN: 0925-3467
eISSN: 1873-1252
JUFO-Level of this publication: 1
Open Access: Open Access publication
Location of the parallel saved publication: http://urn.fi/URN:NBN:fi-fe202101111491


Rare earth-doped materials are successfully utilized as non-contact optical temperature sensors. Thermal sensing is usually based on the ratiometric technique between two separate emission lines originated from thermally-coupled levels. We study Gd2O3:Eu3+ 1 at.% and YAG: Eu3+ 4 at.% phosphors as luminescence thermometers in 298–473 K range using both conventional experimental and Judd-Ofelt based theoretical approaches. Thermometric performances of suggested sensors were quantified through absolute and relative thermal sensitivities and temperature resolution. Experiment and theoretical modelling gave similar results. This proves the theoretical model as a simple and fast method for estimation of the Eu3+-doped thermometer perspectives.

Last updated on 2021-11-01 at 13:28