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ZHANG YI1,2, ZHOU AIHUA2, CAI YUANXUE1,2,* , MING CHENGGUO1,2, PEI YUMIAO2
Rare earth Er³⁺ mono-doped upconverted sodium crystals were prepared, and the effects of the doping and the reaction time on the structure, morphology and luminescence properties of the materials were investigated, and then these conditions were optimized. The NaYF4: x%Er3+ has a hexagonal crystalline phase with homogeneous morphology. Under 980 nm excitation (with a power of 2.0W) the optimal rare-earth-element doping ratio of NaYF4: 2%Er3+ has a good emission spectrum with color coordinates (0.34, 0.56). The phosphor-dependent luminescence spectra were measured, and the fluorescence intensity ratio(FIR) of its optical thermometer was calculated and fitted [1]. This experimental result lays the foundation for the field of temperature probing of the upconversion luminescence.
Upconversion luminescence, Temperature sensing, NaYF4 : x%Er3+.
ZHANG YI, ZHOU AIHUA, CAI YUANXUE, MING CHENGGUO, PEI YUMIAO, Research progress on upconversion luminescence and temperature sensing performance based on rare earth-doped NaYF4: Er3+, Optoelectronics and Advanced Materials - Rapid Communications, 19, 1-2, January-February 2025, pp.95-101 (2025).
Submitted at: Aug. 3, 2024
Accepted at: Feb. 3, 2025
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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