Temperature sensing properties of dual-laser excited Y2O3:Yb3+/Er3+/Tm3+ fluorescent crystals

IF 2.8 3区物理与天体物理 Q2 PHYSICS, CONDENSED MATTER Physica B-condensed Matter Pub Date : 2024-11-12 DOI:10.1016/j.physb.2024.416729

Yong Tang , Qiuyue Ran

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Abstract

This paper synthesized Y₂O₃: Yb³⁺/Er³⁺/Tm³⁺ fluorescent crystals (YET) by annealing using the laser zone melting method. When the 365 nm(UV) and 980 nm(IR) lasers are excited together, the luminescence color of YET can be changed by adjusting the laser power. It can be adjusted between orange-red, yellow-green, and white. The temperature sensing characteristics based on the fluorescence intensity ratio (FIR) of non-thermally coupled levels (NTCL) and thermally coupled levels (TCL) of Tm³⁺ and Er³⁺ ions were studied. The derived maximum relative sensitivity (S_R) reached the impressive value of 10.871 K^-1 (303 K) and 0.511 %K⁻¹ (563K), respectively. Moreover, as the temperature increases, the luminescence of the YET emission changes from white to blue. So, the luminescence emitted by YET can be adjusted between red, green, blue, and white. Therefore, using dual lasers to excite fluorescent materials can provide a suitable method for color-adjustable phosphor.

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双激光激发 Y2O3:Yb3+/Er3+/Tm3+ 荧光晶体的温度传感特性

本文采用激光区熔法退火合成了Y2O3：Yb3+/Er3+/Tm3+荧光晶体（YET）。当 365 nm（紫外）和 980 nm（红外）激光同时激发时，可通过调节激光功率改变 YET 的发光颜色。它可以在橙红、黄绿和白色之间进行调节。研究了基于 Tm3+ 和 Er3+ 离子的非热耦合水平（NTCL）和热耦合水平（TCL）的荧光强度比（FIR）的温度传感特性。得出的最大相对灵敏度（SR）分别达到了令人印象深刻的 10.871 K-1 (303 K) 和 0.511 %K-1 (563K)。此外，随着温度的升高，YET 发出的荧光由白色变为蓝色。因此，YET 发出的荧光可在红色、绿色、蓝色和白色之间调节。因此，使用双激光器激发荧光材料可以为颜色可调荧光粉提供一种合适的方法。

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来源期刊

Physica B-condensed Matter 物理-物理：凝聚态物理

CiteScore

4.90

自引率

7.10%

发文量

703

审稿时长

44 days

期刊介绍： Physica B: Condensed Matter comprises all condensed matter and material physics that involve theoretical, computational and experimental work. Papers should contain further developments and a proper discussion on the physics of experimental or theoretical results in one of the following areas: -Magnetism -Materials physics -Nanostructures and nanomaterials -Optics and optical materials -Quantum materials -Semiconductors -Strongly correlated systems -Superconductivity -Surfaces and interfaces