YAG : R3+ (R = Ce, Dy, Yb) nanophosphor-based luminescent fibre-optic sensors for temperature measurements in the range 20 – 500 °C

IF 0.9 4区 工程技术 Q3 Engineering Quantum Electronics Pub Date : 2022-01-01 DOI:10.1070/qel17971
S. Evstropiev, V. Demidov, D. Bulyga, R. Sadovnichii, G. Pchelkin, D. Shurupov, Yu.F. Podrukhin, A. Matrosova, N. Nikonorov, K. Dukelskii
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引用次数: 1

Abstract

We report the development of a group of luminescent fibre-optic temperature sensors that use Ce3+-, Dy3+-, and Yb3+- doped yttrium aluminium garnet (YAG) nanophosphors as thermosensitive materials. The nanophosphors have been prepared in the form of powders with a crystallite size from 19 to 27 nm by a polymer – salt method and exhibit bright luminescence at 550 (YAG : Ce3+), 400, 480 (YAG : Dy3+), and 1030 nm (YAG : Yb3+). The sensor design includes a silica capillary, partially filled with a nanophosphor, and two large-aperture multimode optical fibres located in the capillary, which deliver excitation light and receive and transmit the photoluminescence signal. The photoluminescence signal amplitude of all the sensors decreases exponentially with increasing temperature, pointing to characteristic thermal quenching of photoluminescence and adequate operation of the devices up to 500 °C. The highest temperature sensitivity among the fibre-optic sensors is offered by the YAG : Ce3+ nanophosphor-based devices.
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YAG: R3+ (R = Ce, Dy, Yb)纳米荧光粉发光光纤传感器,用于温度测量范围在20 - 500°C
我们报道了一组使用Ce3+-, Dy3+-和Yb3+掺杂钇铝石榴石(YAG)纳米荧光粉作为热敏材料的发光光纤温度传感器的开发。采用聚合物-盐法制备了晶粒尺寸为19 ~ 27 nm的纳米荧光粉,并在550 nm (YAG: Ce3+)、400 nm、480 nm (YAG: Dy3+)和1030 nm (YAG: Yb3+)处表现出明亮的发光。传感器设计包括一个部分填充纳米荧光粉的二氧化硅毛细管,以及位于毛细管中的两根大孔径多模光纤,该光纤发送激发光并接收和传输光致发光信号。所有传感器的光致发光信号幅值随温度的升高呈指数下降,表明光致发光具有特有的热猝灭特性,器件在500℃以下可正常工作。光纤传感器中温度灵敏度最高的是YAG: Ce3+纳米荧光粉器件。
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来源期刊
Quantum Electronics
Quantum Electronics 工程技术-工程:电子与电气
CiteScore
3.00
自引率
11.10%
发文量
95
审稿时长
3-6 weeks
期刊介绍: Quantum Electronics covers the following principal headings Letters Lasers Active Media Interaction of Laser Radiation with Matter Laser Plasma Nonlinear Optical Phenomena Nanotechnologies Quantum Electronic Devices Optical Processing of Information Fiber and Integrated Optics Laser Applications in Technology and Metrology, Biology and Medicine.
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