Enhancing upconversion luminescence intensity of BiTa7O19:Er3+/Yb3+/Mo4+ by doping Sc3+ or Sb

IF 3.5 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of the American Ceramic Society Pub Date : 2024-09-25 DOI:10.1111/jace.20160

Lei Li, Yongze Cao, Guojian Li, Xianglan Yan, Xuekai Wang, Xizhen Zhang, Baojiu Chen

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Abstract

Based on the previous optimal concentration of Er³⁺/Yb³⁺/Mo⁴⁺ co-doped BiTa₇O₁₉ (BTO) samples, Sc³⁺ or Sb is planned to be doped into BTO:Er³⁺/Yb³⁺/Mo⁴⁺ for further improving the upconversion luminescence (UCL) intensity under 980-nm laser excitation. A series of BTO:Er³⁺/Yb³⁺/Mo⁴⁺/Sc³⁺ and BTO:Er³⁺/Yb³⁺/Mo⁴⁺/Sb samples are prepared by high-temperature solid-phase sintering method. The microstructure and UCL properties are investigated by X-ray diffraction, Raman, X-ray photoelectron spectroscopy (XPS), diffuse reflection, and luminescence spectrum. The green UCL intensity of BTO:Er³⁺/Yb³⁺/Mo⁴⁺/Sb is little better than that of BTO:Er³⁺/Yb³⁺/Mo⁴⁺/Sc³⁺, which reaches 2.40 times than that of β-NaYF₄:Er³⁺/Yb³⁺. XPS results show that Sc is 3+, Mo is 4+, and Sb is 3+ and 5+. Raman spectra show that BTO:Er³⁺/Yb³⁺/Mo⁴⁺/Sb has lower phonon energy and more disorder than BTO:Er³⁺/Yb³⁺/Mo⁴⁺/Sc³⁺. The maximum relative temperature sensitivity is got as 0.01012 K⁻¹ at 303 K based on luminescence intensity ratio technology. BTO:Er³⁺/Yb³⁺/Mo⁴⁺/Sb has outstanding pure green UCL intensity, which can be applied to luminescence display and temperature sensing.

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通过掺杂 Sc3+ 或 Sb 增强 BiTa7O19:Er3+/Yb3+/Mo4+ 的上转换发光强度

基于之前 Er3+/Yb3+/Mo4+ 共掺杂 BiTa7O19（BTO）样品的最佳浓度，计划在 BTO:Er3+/Yb3+/Mo4+ 中掺杂 Sc3+ 或 Sb，以进一步提高 980nm 激光激发下的上转换发光（UCL）强度。采用高温固相烧结法制备了一系列 BTO:Er3+/Yb3+/Mo4+/Sc3+ 和 BTO:Er3+/Yb3+/Mo4+/Sb 样品。通过 X 射线衍射、拉曼、X 射线光电子能谱（XPS）、漫反射和发光光谱研究了样品的微观结构和 UCL 特性。结果表明，BTO:Er3+/Yb3+/Mo4+/Sb 的绿色 UCL 强度略好于 BTO:Er3+/Yb3+/Mo4+/Sc3+，是 β-NaYF4:Er3+/Yb3+ 的 2.40 倍。XPS 结果显示，Sc 为 3+，Mo 为 4+，Sb 为 3+ 和 5+。拉曼光谱显示，与 BTO:Er3+/Yb3+/Mo4+/Sc3+ 相比，BTO:Er3+/Yb3+/Mo4+/Sb 的声子能量更低，无序度更高。根据发光强度比技术，303 K 时的最大相对温度灵敏度为 0.01012 K-1。BTO:Er3+/Yb3+/Mo4+/Sb 具有出色的纯绿色 UCL 强度，可用于发光显示和温度传感。

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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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