Reactive spark plasma sintering and luminescence properties of Gd2O2S:Tb nanocrystalline phosphor

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Optical Materials Pub Date : 2024-10-22 DOI:10.1016/j.optmat.2024.116312

O.O. Shichalin , Yun Shi , A.A. Vornovskikh , Z.E. Kornakova , A.V. Amosov , A.A. Belov , A.I. Seroshtan , N.P. Ivanov , P.A. Marmaza , I. Yu Buravlev , D.S. Starev , D.Yu Kosyanov , E.K. Papynov

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Abstract

Gd₂O₂S:Tb is promising for energy-efficient lighting and display applications. This work explores the use of reactive spark plasma sintering (SPS) to synthesis Gd₂O₂S:Tb nanocrystalline phosphor. It allows to significantly simplify the technological process in comparison with traditional multi-stage liquid-phase synthesis. As-sintered Gd₂O₂S:Tb demonstrated average crystallite size of 26 nm and secondary particle size of 26 μm. Bright green emission occurs at 545 nm under UV excitation of 245 nm. Average fluorescence lifetime was 0.656 ms. Further consolidation of the Gd₂O₂S:Tb prepared via reactive SPS can also be expected to yield highly dense ceramics. The innovative reactive synthesis strategies provide valuable insights into the design and development of high-performance luminescent ceramics.

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Gd2O2S:Tb 纳米晶荧光粉的反应火花等离子烧结和发光特性

Gd2O2S:Tb 在高能效照明和显示应用中大有可为。这项研究探索了利用反应火花等离子烧结（SPS）合成 Gd2O2S:Tb 纳米晶荧光粉的方法。与传统的多级液相合成法相比，它大大简化了工艺流程。砷烧结 Gd2O2S:Tb 的平均晶粒大小为 26 nm，二级粒径为 26 μm。在 245 纳米紫外线的激发下，在 545 纳米波长处发出明亮的绿色荧光。平均荧光寿命为 0.656 毫秒。通过反应性 SPS 制备的 Gd2O2S:Tb 还可望进一步固化，生成高密度陶瓷。创新的反应合成策略为高性能发光陶瓷的设计和开发提供了宝贵的启示。

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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.