Synthesis and characterization of LiLuF4:Er3+ and LiLuF4:Yb3+,Er3+ exhibiting upconversion fluorescence pumped by a 1560 nm laser,New Journal of Chemistry

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Synthesis and characterization of LiLuF4:Er3+ and LiLuF4:Yb3+,Er3+ exhibiting upconversion fluorescence pumped by a 1560 nm laser
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2020-04-29 , DOI: 10.1039/d0nj01165g
Xueshuang Li _{1,

2,

3,

4} , Shengyan Yin _{2,

3,

4,

5,

6} , Weiye Song _{7,

8,

9,

10,

11} , Xingyuan Guo _{1,

2,

3,

4}

Affiliation

Er³⁺ (10%) and Yb³⁺/Er³⁺ (10%/10%) doped tetragonal LiLuF₄ microcrystals were synthesized via a hydrothermal method. The upconversion (UC) luminescence of LiLuF₄:Yb³⁺,Er³⁺ and LiLuF₄:Er³⁺ microcrystals is studied under 1560 nm pulsed laser excitation. The UC luminescence spectra indicated that LiLuF₄ with doped rare earth ions achieved emissions that come from 2–4 photon UC processes. In the Yb³⁺/Er³⁺ doped LiLuF₄, the UC fluorescence shows enhanced emission of Er³⁺ ions in the infrared range of about 1 μm under 1560 nm laser excitation. The UC population processes of Er³⁺ and the energy transfer (ET) mechanism between Er³⁺ and Yb³⁺ played important roles in the as-prepared samples.

中文翻译：

LiLuF4：Er3 +和LiLuF4：Yb3 +，Er3 +的合成与表征，表现出由1560 nm激光泵浦的上转换荧光

通过水热法合成了Er ³⁺（10％）和Yb ³⁺ / Er ³⁺（10％/ 10％）掺杂的四方LiLuF ₄微晶。在1560 nm脉冲激光激发下研究了LiLuF ₄：Yb ³⁺，Er ³⁺和LiLuF ₄：Er ³⁺微晶的上转换（UC）发光。UC发光光谱表明，掺有稀土离子的LiLuF ₄实现了来自2-4光子UC过程的发射。在掺Yb ³⁺ / Er ^3+的LiLuF _4中，UC荧光显示Er ^3+的发射增强。在1560 nm激光激发下约1μm红外范围内的离子。在制备的样品中，Er ³⁺的UC种群过程以及Er ³⁺和Yb ³⁺之间的能量转移（ET）机制发挥了重要作用。

更新日期：2020-04-29

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