Er3+/Yb3+共激活YNbO4纳米晶体荧光粉：980 nm激发下的上转换发光和集成寿命测温

IF 4.2 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-09-23 DOI:10.1016/j.optmat.2025.117551

Tamara B. Ivetić , Boris Banjac , Ljubica Đačanin Far , Dragana Štrbac , Zoran Ristić

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引用次数: 0

摘要

本文介绍了铒（1 at %）和镱（2 at %）掺杂氧化钇（YNbO4）作为一种潜在的温度传感器材料的结构、形貌、光学和光致发光性能。所得的YNbO4粉末样品为弗格森石-β样单斜晶结构，x射线衍射分析证实其颗粒尺寸约为1-3 μm。在980 nm激发后，由于能量上转换（UC）过程，在可见光（Vis）和近红外（NIR）区域检测到光致发光。在300 K下测得的Er3+激发态4S3/2能级的寿命为0.238 ms。记录了不同温度下的测温性能，并首次采用发光发射衰减法对其进行了分析。当温度从300 K到600 K变化时，相对灵敏度从0.23%下降到0.085% K−1，表明该材料具有用于基于寿命的荧光粉测温的良好潜力。

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Er3+/Yb3+ co-activated YNbO4 nanocrystalline phosphors: Up-conversion luminescence under the 980 nm excitation and integrated lifetime thermometry

This paper presents the structure, morphology, optical and photoluminescent properties of erbium (1 at %) and ytterbium (2 at %) doped yttrium niobium oxide (YNbO₄) as a potential temperature sensor material. Obtained powder samples of fergusonite-β-like monoclinic crystalline structure of YNbO₄, confirmed by X-ray diffraction analysis, showed particles of about 1–3 μm in size. Photoluminescence emissions were detected in the visible (Vis) and near-infrared (NIR) regions after excitation at 980 nm as a result of the energy up-conversion (UC) process. The lifetime of the most intense Er³⁺ excited state ⁴S_3/2 level measured at 300 K was 0.238 ms. Thermometric properties were recorded at different temperatures and analyzed for the first time using the luminescence emission decay method. The relative sensitivity decreases from 0.23 % to 0.085 % K⁻¹, by varying the temperature from 300 to 600 K, indicating a good potential of this material for lifetime-based phosphor thermometry.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.