Author(s): Zhou, PY (Zhou, Pengyu); Zhang, QL (Zhang, Qingli); Peng, F (Peng, Fang); Sun, BQ (Sun, Baoquan); Dou, XM (Dou, Xiuming); Liu, B (Liu, Bao); Han, DD (Han, Dandan); Xue, YZ (Xue, Yongzhou); Ding, K (Ding, Kun)

Source: JOURNAL OF RARE EARTHS Volume: 40 Issue: 6 Pages: 870-877 DOI: 10.1016/j.jre.2021.04.003 Published: JUN 2022

Abstract: Pressure- and temperature-dependent luminescence properties of F-3(3/2) -> I-4(9/2) transition of Nd3+ :GdTaO4 were studied for potential applications in optical sensing. Two isolated emission lines corresponding to F-3(3/2) (R-2,R- 1) -> I-4(9/2) (Z(5)) transitions, located at 920 and 927 nm under ambient condition, are very sensitive to pressure with coefficients of -15.6 and -14.5 cm(-1)/GPa determined in a pressure range up to about 9 GPa. The luminescence intensity ratio between the two emission lines exhibits a large dependence with temperature in a range from 80 to 620 K, the corresponding temperature sensitivity at room temperature is similar to that of Nd3+ :YAG. These advantages, together with the other observed features of high stable position relationship under pressure and low thermal shifts for the two emission lines indicate that Nd3+ :GdTaO4 is a promising candidate to be used as pressure and temperature sensors in the near-infrared spectral range. (c) 2021 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.

Accession Number: WOS:000880176000003

ISSN: 1002-0721

Full Text: https://www.sciencedirect.com/science/article/pii/S1002072121000909?via%3Dihub