1000 K optical ratiometric thermometer based on Er3+ luminescence in yttrium gallium garnet
authors Hernandez-Rodriguez, MA; Kamada, K; Yoshikawa, A; Munoz-Santiuste, JE; Casasnovas-Melian, A; Martin, IR; Rodriguez-Mendoza, UR; Lavin, V
nationality International
journal JOURNAL OF ALLOYS AND COMPOUNDS
author keywords Micro-pulling down technique; Er3+-doped Y3Ga5O12 garnet crystal; Optical temperature sensor; Ultra-high temperature industrial applications
keywords UP-CONVERSION EMISSION; HIGH-TEMPERATURE; ABSORPTION INTENSITIES; THERMAL SENSITIVITY; TM3+ IONS; SENSOR; LANTHANIDE; FLUORESCENCE; STOKES; POWER
abstract The temperature dependence of the Er3+ green luminescence in Y3Ga5O12 crystal were analysed under ultraviolet and near-infrared laser excitations for optical sensing purposes. Changes in the relative green emission intensities from the H-2(11/2) and S-4(3/2) thermally-coupled multiplets to the I-4(15/2) ground state were measured from room temperature up to 1000 K. The calibrated temperature scale shows a maximum in the absolute thermal sensitivity of similar to 23.9 x 10(-4) K-1 at 580 K and a relative thermal sensitivity of similar to 1.36%K-1 at RT, combining results for both blue and near-infrared laser excitations. The excellent results obtained, compared with other Er3+-based optical temperature sensors, are a consequence of the advantages of garnet crystals as optically efficient hosts that, apart from an impressive capability to be synthesized both as bulk and fiber forms, allow extending the long working temperature range up to 1000 K, and beyond, to the melting point limit close to 2000 K. In addition, the use of green emissions for the temperature calibration, with negligible black-body radiation disturbance, only needs a low-cost, basic setup that uses commercially available lenses, lasers and detectors. All these facts support the Er3+-doped Y3Ga5O12 garnet crystal as a potential candidate as temperature sensor, showing large sensitivity and good temperature resolution for ultra-high temperature industrial applications. (C) 2021 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE SA
issn 0925-8388
isbn 1873-4669
year published 2021
volume 886
digital object identifier (doi) 10.1016/j.jallcom.2021.161188
web of science category 11
subject category Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering
unique article identifier WOS:000702796200006
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journal analysis (jcr 2019):
journal impact factor 4.65
5 year journal impact factor 4.082
category normalized journal impact factor percentile 77.703
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