Simultaneous enhancement of quantum cutting luminescence in Er-doped NaBaPO4 phosphors by crystal field control and plasmonic modulation

IF 5.6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2022-10-15 DOI:10.1016/j.ceramint.2022.06.233

Jinquan Hong , Biao Zheng , Qi Cheng , Jing Wang , Yufei Liu , Ruoqian Lin , Kaipeng Li , Liwen Huang , Jun Wang , Lin Lin , Zhiqiang Zheng

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引用次数: 0

Abstract

It is of great significance to enhance the quantum-cutting (QC) luminescence for practical applications due to the narrow absorption cross-section and low luminescence efficiency of rare earth ions. In this work, NaBaPO₄:Er³⁺ phosphors doped with Li⁺ were synthesized through a solid-state reaction. The QC luminescence of NaBaPO₄:Er³⁺ phosphor was enhanced 5.71 times by doping Li⁺. XRD patterns and Judd-Ofelt calculations demonstrated the crystal field distortion when introduced Li⁺, which would increase the transition probability of Er³⁺. Furthermore, NaBaPO₄:Er³⁺, Li⁺ phosphors were decorated with silver nanoparticles (Ag NPs). The effect of Ag NPs on QC luminescence was studied, and the results showed that QC luminescence was further enhanced up to 1.95 times by Ag NPs. FDTD simulations revealed that Ag NPs generated substantial surface plasmons, which would boost the excitation rate of Er³⁺. Our studies would provide a useful strategy to enhance QC luminescence, which has potential application in germanium-based solar cells.

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晶体场控制和等离子体调制同时增强掺铒NaBaPO4荧光粉的量子切割发光

稀土离子的吸收截面窄，发光效率低，因此增强量子切割发光在实际应用中具有重要意义。本研究通过固相反应合成了Li+掺杂的NaBaPO4:Er3+荧光粉。Li+的掺入使NaBaPO4:Er3+荧光粉的QC发光增强了5.71倍。XRD图谱和Judd-Ofelt计算表明，引入Li+会导致Er3+的晶体场畸变，从而增加Er3+的跃迁概率。此外，NaBaPO4:Er3+， Li+荧光粉被银纳米粒子(Ag NPs)修饰。研究了Ag NPs对QC发光的影响，结果表明Ag NPs对QC发光的增强达到1.95倍。FDTD模拟表明，Ag纳米粒子产生了大量的表面等离子体，这将提高Er3+的激发速率。我们的研究将为增强QC发光提供一种有用的策略，这在锗基太阳能电池中具有潜在的应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.