结构调控诱导的新型窄带蓝光发光Eu2+活化硝酸铝硅酸盐荧光粉应用于wled和fed

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-04-23 DOI:10.1016/j.optmat.2025.117085

Quansheng Wu , Yuanmin Zhang , Jingjing Chen , Chunxiang Chen , Faliang Cao , Weijian Wang , Xubo Zhu , Jiasheng Zeng , Jianyan Ding

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引用次数: 0

摘要

开发新型窄带发光荧光粉是一个重要的研究领域，特别是氮基材料，被认为是很有前途的荧光粉寄主。本研究通过对Al6O3N4的结构优化，在Eu2+活化的硝基铝硅酸盐MgAl4SiO3N4中实现了窄带蓝光发射。Mg2+离子被加入到主晶格中，部分取代Al3+离子，而共掺杂的Si4+离子被用来保持电荷中性。与初始相Al6O3N4相比，利用MgO的高反应性，在相对温和的条件下成功合成了MgAl4SiO3N4。此外，通过结构优化，Eu2+活化的MgAl4SiO3N4表现出优异的光致发光和阴极发光性能。在近紫外光激发下，MgAl4SiO3N4:Eu2+发出强烈的窄带蓝光，其半峰全宽（FWHM）为0.338 eV。该材料的内部量子效率高达74%。本研究系统地研究了Eu2+在MgAl4SiO3N4中的结构-性能关系，阐明了Eu2+离子在MgAl4SiO3N4基质中的光致发光特性。研究结果为探索更有前途的硅酸盐或氮化铝基窄带发光荧光粉开辟了一条有效途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Structure regulation induced novel narrow-band blue light-emitting Eu2+-Activated nitroaluminosilicate phosphor for WLEDs and FEDs applications

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Structure regulation induced novel narrow-band blue light-emitting Eu2+-Activated nitroaluminosilicate phosphor for WLEDs and FEDs applications

Developing novel narrow-band light-emitting phosphors remains a critical area of research, particularly for nitride-based materials, which are regarded as promising host for phosphor. In this study, a narrow-band blue light emission was achieved in Eu²⁺-activated nitroaluminosilicate MgAl₄SiO₃N₄ through structural optimization of the AlON-related phase Al₆O₃N₄. Mg²⁺ ions were incorporated into the host lattice to partially substitute for Al³⁺ ions, while co-doped Si⁴⁺ ions were utilized to maintain charge neutrality. Leveraging the high reactivity of MgO, MgAl₄SiO₃N₄ was successfully synthesized under relatively mild conditions, in contrast to the initial phase of Al₆O₃N₄. Furthermore, through structural optimization, Eu²⁺-activated MgAl₄SiO₃N₄ exhibits remarkable photoluminescence and cathodoluminescence performance. When excited by near-ultraviolet light, MgAl₄SiO₃N₄:Eu²⁺ emits intense narrow-band blue light, characterized by a full width at half maximum (FWHM) of 0.338 eV. The material exhibits an internal quantum efficiency as high as 74 %. The structure-property relationship of Eu²⁺ in MgAl₄SiO₃N₄ was systematically investigated in this study, elucidating the photoluminescence characteristics of Eu²⁺ ions within the MgAl₄SiO₃N₄ host. The results may establish an efficient pathway for exploring more promising silicate- or aluminum nitride-based narrow-band light-emitting phosphors.

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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.