The emission spectra of -doped  single crystal were measured at room temperature (297K) and 12K. Temperature dependence of the experimental intensity corresponding to  (517nm, 522nm, 526nm and 529nm) Stark level transitions and  (540nm, 542nm, 544nm, 551nm and 560nm) Stark level transitions have been investigated in the range of 12-297K. The fluorescence intensity ratio (FIR) of thermally coupled levels were also calculated and studied in the range of 12-297K. The results show that the  crystal can be applied to the matrix material of the temperature measurement based on  ion fluorescence intensity ratio.

thermally coupled levels, stark levels, erbium ions, emission spectrum.

Received: January 7, 2021; Accepted: February 8, 2021; Published: February 23, 2021

How to cite this article: Shuai Wang, Yongfeng Ruan and Pengfei Wang, Temperature Dependence of the Thermally Coupled Levels in Er³⁺-DOPED BaY₂F₈ Crystal Temperature Sensor, International Journal of Materials Engineering and Technology 20(1) (2021), 1-8. DOI: 10.17654/MT020010001

This Open Access Article is Licensed under Creative Commons Attribution 4.0 International License

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