Pressure-Triggered Fluorescence Intensity Ratio Variations of YNbO4:Bi3+/Ln3+ (Ln = Eu or Sm) for High-Sensitivity Optical Pressure Sensing

Zhibo Zheng; Zhongliang Li; Haifeng Zou; Qianyu Tao; Yanxia Zhao; Qilin Wang; Zhan Shi; Yanhua Song; Liang Li

doi:10.1021/acs.inorgchem.3c04265

Pressure-Triggered Fluorescence Intensity Ratio Variations of YNbO₄:Bi³⁺/Ln³⁺ (Ln = Eu or Sm) for High-Sensitivity Optical Pressure Sensing

Inorg Chem. 2024 Feb 26;63(8):3882-3892. doi: 10.1021/acs.inorgchem.3c04265. Epub 2024 Feb 15.

Authors

Zhibo Zheng¹, Zhongliang Li¹, Haifeng Zou¹, Qianyu Tao², Yanxia Zhao¹, Qilin Wang³, Zhan Shi⁴, Yanhua Song¹, Liang Li²

Affiliations

¹ Department of Chemical Engineering and Applied Chemistry, College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
² State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, PR China.
³ Engineering Research Center of Special Engineering Plastics, Ministry of Education, National and Local Joint Engineering Laboratory for Synthetic Technology of High Performance Polymer, College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, PR China.
⁴ State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China.

PMID: 38358930
DOI: 10.1021/acs.inorgchem.3c04265

Abstract

Optical pressure sensing by phosphors is a growing area of research. However, the main pressure measurement methods rely on the movement of the central peak position, which has significant drawbacks for practical applications. This paper demonstrates the feasibility of using the fluorescence intensity ratio (FIR) of different emission peaks for pressure sensing. The FIR (I_Bi³⁺/I_Ln³⁺) values of the synthesized YNbO₄:Bi³⁺/Ln³⁺ (Ln = Eu or Sm) phosphors are all first-order exponentially related to pressure, and YNbO₄:Bi³⁺/Ln³⁺ (Ln = Eu or Sm) phosphors have high pressure-sensing sensitivities (S_p and S_pr), which are 6 times higher than those from our previously reported work. In addition, the changes in FIR values during the decompression process were also calculated, and the trend was similar to that during the compression process. The YNbO₄:Bi³⁺,Eu³⁺ phosphor has better pressure recovery performance. In summary, the YNbO₄:Bi³⁺/Ln³⁺ (Ln = Eu or Sm) phosphors reported in this paper are expected to be applied in the field of optical pressure sensing, and this study provides a new approach and perspective for designing new phosphors for pressure measurement.