Ba2LuNbO6:Er3+,Yb3+ up-conversion phosphors for dual-mode thermometry based on fluorescence intensity ratio

IF 3.5 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of the American Ceramic Society Pub Date : 2024-08-12 DOI:10.1111/jace.20058

Yang Chen, Junyu Chen, Yuxuan Luo, Qiang Wang, Hai Guo

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Abstract

Fluorescence intensity ratio (FIR) thermometry has been regarded as new optical thermometry because of its faster response, higher sensitivity, and accuracy. However, improving the sensitivity is still a challenge. Here, Ba₂LuNbO₆:Er³⁺,Yb³⁺ up-conversion specimens were synthesized, characterized, and designed for dual-mode thermometry based on FIR. The ²H_11/2/⁴S_3/2 thermally coupled energy levels (TCELs) and ²H_11/2/⁴F_9/2 non-TCELs (NTCELs) of Er³⁺ were selected as two FIR modes for optical thermometry. The energy gap of ²H_11/2/⁴S_3/2 TCELs of Er³⁺ in Ba₂LuNbO₆:Er³⁺,Yb³⁺ phosphors was confirmed as 977 cm⁻¹. Therefore, the maximal relative sensitivity (S_r) of FIR based on TCELs is 1.53% K⁻¹ @ 303 K. For FIR based on NTCELs, a higher maximal S_r value of 1.81% K⁻¹ @ 303 K is obtained, which surpasses other Er³⁺-doped up-conversion specimens. In addition, the phosphors exhibit excellent thermal fatigue resistance and temperature resolution. Results suggest that Ba₂LuNbO₆:Er³⁺,Yb³⁺ specimens might be applied in the temperature sensing field.

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基于荧光强度比的 Ba2LuNbO6:Er3+,Yb3+上转换荧光粉用于双模温度测量法

荧光强度比（FIR）测温法因其反应速度快、灵敏度高、准确度高而被视为新型光学测温法。然而，提高灵敏度仍是一项挑战。在此，我们合成了 Ba2LuNbO6:Er3+,Yb3+上转换试样，对其进行了表征，并设计了基于 FIR 的双模测温仪。选择 Er3+ 的 2H11/2/4S3/2 热耦合能级 (TCEL) 和 2H11/2/4F9/2 非 TCEL (NTCEL) 作为光学测温的两种 FIR 模式。Ba2LuNbO6:Er3+,Yb3+ 磷光体中 Er3+ 的 2H11/2/4S3/2 TCEL 的能隙被确认为 977 cm-1。因此，基于 TCEL 的 FIR 的最大相对灵敏度 (Sr) 为 1.53% K-1 @ 303 K；而基于 NTCEL 的 FIR 的最大相对灵敏度 (Sr) 值更高，为 1.81% K-1 @ 303 K，超过了其他掺杂 Er3+ 的上转换试样。此外，这些荧光粉还表现出优异的抗热疲劳性和温度分辨率。研究结果表明，Ba2LuNbO6:Er3+,Yb3+试样可应用于温度传感领域。

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来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.

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