Author(s): Zhou, PY (Zhou, Pengyu); Zhang, QL (Zhang, Qingli); Dou, XM (Dou, Xiuming); Wang, J (Wang, Jian); Sun, BQ (Sun, Baoquan); Shen, YH (Shen, Yuhua); Liu, B (Liu, Bao); Han, DD (Han, Dandan)

Source: PHYSICAL CHEMISTRY CHEMICAL PHYSICS Volume: 23 Issue: 40 Pages: 23380-23388 DOI: 10.1039/d1cp03418a Early Access Date: SEP 2021 Published: OCT 20 2021

Abstract: The pressure- and temperature-dependent luminescence properties of M '-phase Nd3+:YTaO4 synthesized by a molten salt method are presented. Ten near-infrared emission lines originating from the transitions between the two Stark levels R-1,R-2 of the F-3(3/2) state and the five Stark levels Z(1,2,3,4,5) of the I-4(9/2) state for the doped Nd3+ ions can be clearly identified. All these emission lines are found to shift linearly with pressure in a range up to similar to 11 GPa. The R-2,R-1 -> Z(5) emission lines have larger pressure sensitivities, which are 16.44 and 14.27 cm(-1) GPa(-1). The intensities of all the emission lines evolve with pressure non-monotonically, and peak at similar to 1 GPa. The R-1 -> Z(4,5) and R-2 -> Z(1) emission lines can be obviously narrowed under the hydrostatic pressure, and broadened under the non-hydrostatic pressure, indicating their potential capability for reflecting the characteristic of a pressure environment. The intensity ratio of the R-2,R-1 -> Z(5) emission lines exhibits a large temperature dependence, with a relative sensitivity between 0.129% and 0.108% K-1 in the physiological temperature range of 290-320 K. Thermal variations of the spectral positions and widths of the R-2,R-1 -> Z(5) emission lines are also investigated. A high thermal stability for the position of the R-2 -> Z(5) emission line is revealed. Based on the experimental results, the advantages and potential of Nd3+:YTaO4 as a multi-functional sensor for pressure and temperature are discussed.

Accession Number: WOS:000706391500001

PubMed ID: 34636820

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

Zhou, Pengyu                  0000-0002-3758-7859

ISSN: 1463-9076

eISSN: 1463-9084

Full Text: https://pubs.rsc.org/en/content/articlelanding/2021/CP/D1CP03418A