Fabrication and luminescent properties of erbium-doped Y2O3–MgO and Gd2O3–MgO nanocomposite ceramics

IF 3.8 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Journal of the American Ceramic Society Pub Date : 2024-12-26 DOI:10.1111/jace.20330

Stanislav Balabanov, Dmitry Permin, Simone Normani, Alexander Belyaev, Vitaliy Koshkin, Pavel Andreev, Igor Ladenkov, Alain Braud, Patrice Camy, Rosa Maria Solé, Xavier Mateos, Pavel Loiko

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Abstract

We report on the fabrication and optical properties of erbium-doped Y₂O₃–MgO and Gd₂O₃–MgO nanocomposite ceramics, with a particular focus on their mid-infrared emission. The ceramics were fabricated by a self-propagating high-temperature synthesis followed by hot pressing. The transmittance of 1.7 mm-thick 5 at.% Er:Y₂O₃–MgO and 7 at.% Er:Gd₂O₃–MgO ceramics at 3 µm amounted to 79.4% and 21.5%, respectively. This difference in transmission, as revealed by microstructural analysis, is due to variation in the distribution of residual pore sizes, while the average grain size is almost the same for both ceramics, being ∼200 nm. The composites exhibited luminescence in the visible, near-infrared, and mid-infrared spectral ranges attributed to electronic transitions of Er³⁺ ions in the cubic sesquioxide phase. Peculiarities in the Raman and luminescence spectra were identified in comparison to single-phase Er:Y₂O₃ and Er:Gd₂O₃ ceramics, which may indicate certain solubility of MgO in the sesquioxide phase of the composites.

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掺铒Y2O3-MgO和Gd2O3-MgO纳米复合陶瓷的制备及其发光性能

本文报道了掺铒Y2O3-MgO和Gd2O3-MgO纳米复合陶瓷的制备和光学性能，重点研究了它们的中红外发射特性。采用自蔓延高温合成-热压法制备陶瓷。透光率为1.7 mm厚5 at。% Er: Y2O3-MgO和7 at。3µm的% Er: Gd2O3-MgO陶瓷分别占79.4%和21.5%。微观结构分析表明，这种透射率的差异是由于残余孔径分布的变化，而两种陶瓷的平均晶粒尺寸几乎相同，为~ 200 nm。复合材料在可见光、近红外和中红外光谱范围内发光，这是由于Er3+离子在立方倍半氧化物相中的电子跃迁。与单相Er:Y2O3和Er:Gd2O3陶瓷相比，在拉曼光谱和发光光谱上发现了特殊性，这可能表明MgO在复合材料的半氧化相中具有一定的溶解度。

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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.