La0.4Gd1.6Zr2O7:0.1%Pr transparent sintered ceramic - a wide-range luminescence thermometer
authors Trojan-Piegza, J; Brites, CDS; Ramalho, JFCB; Wang, ZJ; Zhou, GH; Wang, SW; Carlos, LD; Zych, E
nationality International
journal JOURNAL OF MATERIALS CHEMISTRY C
keywords GLASS-CERAMICS; TEMPERATURE; INTENSITY; PHOTOLUMINESCENCE; CONVERSION
abstract Sintered transparent ceramics, presenting extraordinary resistance to thermal shocks, incomparably larger than glasses, glass ceramics, and single crystals, maybe valuable luminescence thermometers especially for high-temperature applications. The literature on that subject is, however, very much limited at present. In this paper, the performance of La0.4Gd1.6Zr2O7:0.1%Pr3+ sintered transparent ceramics as a luminescence thermometer was investigated. Temperature dependence of the intensity ratio of emissions from P-3(0) and D-1(2) levels of the Pr3+ activator was found useful to measure temperature with reasonable relative sensitivity and accuracy over the 15-650 K range - one of the broadest achievable up to date. Time-resolved spectroscopy enabled distinct emissions from D-1(2) and P-3(0) in the red part of the spectrum. This allowed achieving an impressive relative sensitivity of the La0.4Gd1.6Zr2O7:0.1%Pr luminescence thermometer which exceeded 0.81% K-1 at 650 K.
publisher ROYAL SOC CHEMISTRY
issn 2050-7526
isbn 2050-7534
year published 2020
volume 8
issue 21
beginning page 7005
ending page 7011
digital object identifier (doi) 10.1039/d0tc00861c
web of science category Materials Science, Multidisciplinary; Physics, Applied
subject category Materials Science; Physics
unique article identifier WOS:000540457400036
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