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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/18764

Title: Neodymium(III)-doped Y_3Al_2Ga_3O_12 garnet for multipurpose ratiometric thermometry: From cryogenic to high temperature sensing
Authors: Back, Michele
Xu, Jian
Ueda, Jumpei
Tanabe, Setsuhisa
Keywords: YAGG
Ratiometric thermometry
Boltzmann distribution
Issue Date: 2023-04-01
Publisher: The Ceramic Society of Japan
Magazine name: Journal of the Ceramic Society of Japan
Volume: 131
Number: 4
Start page: 57
End page: 61
DOI: 10.2109/jcersj2.22167
Abstract: Nd3+-doped Y3Al2Ga3O12 garnet ceramic pellet was prepared by solid state reaction and used as prototype to investigate the potential of Nd3+-activated garnet phosphors as Boltzmann thermometers for cryogenic and high temperature ranges. Despite the conventional use of the near-infrared emitting Nd3+-activated phosphors for biological applications, their real use is hindered by a low sensitivity in the physiological temperature range. Instead, the photoluminescence analysis in the 100–800 K range demonstrated interesting performances in both the cryogenic and high temperature ranges. Indeed, by taking advantage of the Stark levels of 4F3/2 (Z-levels) and the ratio between the emission from the 4F5/2 and the 4F3/2 excited states is possible to build two reliable Boltzmann thermometers in the same material working in the cryogenic temperature range (100–220 K) and at high temperatures (300–800 K), respectively.
Rights: Copyright (C) 2023, The Ceramic Society of Japan. Licensed under the Creative Commons Attribution 4.0 International license (CC BY 4.0). [https://creativecommons.org/licenses/by/4.0/]
URI: http://hdl.handle.net/10119/18764
Material Type: publisher
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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