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首页> 外文期刊>RSC Advances >Sr1.7Zn0.3CeO4F0.2:Eu3+: novel dual-emission temperature sensors for remote, noncontact thermometric application
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Sr1.7Zn0.3CeO4F0.2:Eu3+: novel dual-emission temperature sensors for remote, noncontact thermometric application

机译：Sr 1.7 Zn 0.3 CeO 4 F 0.2 ：Eu 3 + ：新型对偶发射温度传感器，用于远程非接触测温应用

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摘要

A novel dual-emitting temperature sensor, Sr1.7Zn0.3CeO4F0.2:Eu3+, is successfully synthesized via a ceramic reaction. Powder X-ray diffraction patterns and Rietveld refinement verify the phase purity of the sensor. Its photoluminescence spectrum exhibits a pronounced intrinsic dual emission, theoretically divided by the wavelength of 570 nm: one stems from Eu3+ and the other is derived from the Ce4+–O2? charge transfer state. The temperature-dependent luminescence spectra of the dual-emission thermophosphor demonstrate its superior sensitivity towards ambient temperature. Further studies illustrate that the intensity ratio between the aforementioned two parts, as a function of temperature, is perfectly linear over a broad temperature window, yielding a convenient and accurate approach to obtain the temperature of a target, measured using the noncontact self-referencing model. We also investigate the basis of the underlying mechanism of Sr1.7Zn0.3CeO4F0.2:Eu3+ as a dual-emission thermometric sensor. The research herein shows that the intrinsic dual-emission sensor, as a new-fashioned thermophosphor, displays potential for ratiometric intensity measurements in thermometry domains.
机译：新型双发射温度传感器Sr 1.7 Zn 0.3 CeO 4 F 0.2 ：Eu 3 + ，是通过陶瓷反应。粉末X射线衍射图和Rietveld精制证明了传感器的相纯度。它的光致发光光谱表现出明显的固有双重发射，理论上除以570 nm的波长：一个源自Eu 3 + ，另一个源自Ce 4 + –O 2？ 电荷转移状态。双发射热磷光体的随温度变化的发光光谱显示出其对环境温度的出色灵敏度。进一步的研究表明，上述两个部分之间的强度比（随温度变化）在很宽的温度范围内是完全线性的，从而提供了一种方便，准确的方法来获得目标的温度（使用非接触式自参考模型进行测量） 。我们还研究了Sr 1.7 Zn 0.3 CeO 4潜在机理的基础。 F 0.2 ：Eu 3 + 作为双辐射测温传感器。本文的研究表明，本征双发射传感器作为一种新型的热磷光体，显示了在测温领域进行比例强度测量的潜力。

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