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Germanotellurite glasses doped with ytterbium and neodymium - Their spectroscopic properties and thermometric capability
Journal of Luminescence ( IF 3.6 ) Pub Date : 2021-02-04 , DOI: 10.1016/j.jlumin.2021.117954
M. Łukaszewicz , R. Lisiecki

Germanotellurite glasses doped with Yb and co-doped with Nd and Yb were produced using the melt-quenching method. Their spectroscopic properties were analyzed at 300 K and at elevated temperatures up to 725 K in terms of their luminescent qualities and application potential in luminescence thermometry. The Nd–Yb transfer dynamics were discussed. Owing to the efficient energy transfer from Nd to Yb ions, a temperature sensing model based on the intensity between emission bands from 4F5/2 (Nd) and 2F5/2 (Yb) levels was established, reaching around 0.7%/K of relative sensitivity. Straight after, the model was successfully tested in practical spectroscopy lab conditions to estimate the temperature increase resulting from high power laser diode excitation. Glass spectroscopic features, in conjunction with an intrinsic method for fast and contactless temperature readout, make GTSN: Nd, Yb a promising material especially for optical temperature sensors.



中文翻译:

掺and和钕的锗铁矿玻璃-光谱性质和测温能力

使用熔体淬火法制备了掺有Yb并掺有Nd和Yb的锗铁矿玻璃。就其发光质量和在发光测温中的应用潜力而言,在300 K和高达725 K的高温下分析了它们的光谱性质。讨论了Nd-Yb的传输动力学。由于从Nd到Yb离子的有效能量转移,基于4 F 5/2(Nd)和2 F 5/2发射带之间强度的温度感测模型(Yb)水平已建立,达到相对灵敏度的0.7%/ K左右。紧接着,该模型在实际的光谱实验室条件下成功进行了测试,以估算由于高功率激光二极管激发而引起的温度升高。玻璃光谱学特征与快速和非接触式温度读数的固有方法相结合,使GTSN:Nd,Yb成为有前途的材料,特别是对于光学温度传感器。

更新日期:2021-02-09
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