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材料导报  2025, Vol. 39 Issue (8): 23120260-8    https://doi.org/10.11896/cldb.23120260
  无机非金属及其复合材料 |
可调谐Y2MgTiO6:Tm3+,Dy3+荧光粉的发光特性和能量转移机理
王露燕1, 熊正烨1, 钟国涛2, 黄劲哲2, 刘昊1, 郭竞渊1,*
1 广东海洋大学电子与信息工程学院,广东 湛江 524088
2 广东海洋大学海洋工程与能源学院,广东 湛江 524088
Luminescence Properties and Energy Transfer Mechanism of Tunable Y2MgTiO6:Tm3+, Dy3+ Phosphors
WANG Luyan1, XIONG Zhengye1, ZHONG Guotao2, HUANG Jinzhe2, LIU Hao1, GUO Jingyuan1,*
1 School of Electronic and Information Engineering, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China
2 College of Ocean Engineering and Energy, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China
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摘要 用高温固相反应法研制了一系列发光性能优异的Y2MgTiO6:Tm3+,Dy3+(YMT:Tm3+,Dy3+)双钙钛矿荧光粉。利用X射线粉末衍射(XRD)、光致发光光谱、荧光寿命谱和X射线激发光谱等对制备产物的物相结构、组分和发光性能进行研究,并分析了Dy3+掺杂量对发光性能的影响。通过比较YMT:0.05Tm3+,yDy3+(y=0,0.01,0.05,0.1)荧光光谱和荧光寿命的变化规律可知,Tm3+→Dy3+存在有效能量转移,能量转移机制为偶极-偶极相互作用;在紫外光激发下,YMT:0.05Tm3+,yDy3+荧光粉的发光为蓝色-白色-黄色的宽带可调颜色,白光的CIE坐标为(0.331 6,0.326 1),色温为5 538 K,量子效率(43.72%)较高,且稳定性较好;荧光粉在X射线激发下的强度比紫外光激发下的强度更高,对X射线具有较高的抗辐射性和良好的热稳定性。研究结果表明,YMT:Tm3+,Dy3+可实现宽带可调谐白光发射,是一种潜在的X射线或紫外光激发白光发射荧光材料。
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王露燕
熊正烨
钟国涛
黄劲哲
刘昊
郭竞渊
关键词:  Y2MgTiO6  光致发光  能量转移  X射线激发发光  颜色可调谐    
Abstract: A series of Y2MgTiO6:Tm3+, Dy3+(YMT:Tm3+, Dy3+) double perovskite phosphors with excellent luminescent properties were prepared by high temperature solid-state reaction method. The phase structure, composition and luminescence properties of the prepared products were studied by X-ray powder diffraction(XRD), photoluminescence spectrum, fluorescence lifetime spectrum and X-ray excitation spectrum, and the influence of Dy3+ doping amount on luminescent properties was analyzed. By comparing the photoluminescence spectrum and fluorescence lifetime of YMT:0.05Tm3+, yDy3+(y=0, 0.01, 0.05,0.1), it is found that there is an effective energy transfer from Tm3+ to Dy3+, and the energy transfer mechanism is dipole-dipole interaction. Under the excitation of ultraviolet light, the luminescence of YMT:0.05Tm3+, yDy3+ phosphor is blue-white-yellow broadband adjustable color, the CIE coordinate of white light is (0.331 6, 0.326 1), the color temperature is 5 538 K, the quantum efficiency(43.72%) is high, and the stability is good. The intensity of the phosphor under X-ray excitation is higher than that under ultraviolet excitation, and it has high radiation resistance and good thermal stability for X-ray. The research results show that YMT:Tm3+, Dy3+ can achieve broadband tunable white light emission, which is a potential X-ray or ultraviolet light excited white light emitting fluorescent material.
Key words:  Y2MgTiO6    photoluminescence    energy transfer    X-ray excitation luminescence    color tunable
出版日期:  2025-04-25      发布日期:  2025-04-18
ZTFLH:  O433  
  O434  
  TQ422  
基金资助: 湛江科技计划项目(2022A05022);广东海洋大学科研项目(060302112102);湛江市科技发展专项(2023A21616)
通讯作者:  郭竞渊,博士,广东海洋大学电子与信息工程学院讲师。目前主要从事稀土发光材料、热释光剂量材料等方面的研究。411752945@qq.com   
作者简介:  王露燕,广东海洋大学硕士研究生,在熊正烨教授和郭竞渊讲师的指导下进行研究,目前主要研究领域为稀土发光材料与器件。
引用本文:    
王露燕, 熊正烨, 钟国涛, 黄劲哲, 刘昊, 郭竞渊. 可调谐Y2MgTiO6:Tm3+,Dy3+荧光粉的发光特性和能量转移机理[J]. 材料导报, 2025, 39(8): 23120260-8.
WANG Luyan, XIONG Zhengye, ZHONG Guotao, HUANG Jinzhe, LIU Hao, GUO Jingyuan. Luminescence Properties and Energy Transfer Mechanism of Tunable Y2MgTiO6:Tm3+, Dy3+ Phosphors. Materials Reports, 2025, 39(8): 23120260-8.
链接本文:  
https://www.mater-rep.com/CN/10.11896/cldb.23120260  或          https://www.mater-rep.com/CN/Y2025/V39/I8/23120260
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