铕掺杂NASICON结构红色荧光粉制备和发光性能

鲁重瑞; 赵韦人; 廖子锋; 宋静周; 夏梦龙; 杨焕鑫

doi:10.12052/gdutxb.190018

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铕掺杂NASICON结构红色荧光粉制备和发光性能

综合研究 | 更新时间：2026-05-27

- 铕掺杂NASICON结构红色荧光粉制备和发光性能
- Preparation and Luminescence Properties of Eu³⁺ Doped NASICON-based Red Phosphors
- 广东工业大学学报 2020年37卷第1期页码：27-33
- 作者机构：
  
  广东工业大学物理与光电工程学院,广东,广州,510006
- 作者简介：
  
  鲁重瑞(1992–)，男，硕士研究生，主要研究方向为无机发光材料
  赵韦人(1965–)，男，教授，主要研究方向为无机发光材料，E-mail：zwrab@163.com
- 基金信息：
  
  广东省科学技术厅应用型科技研发及重大科技成果转化专项(2017B010127002)
- DOI：10.12052/gdutxb.190018
  中图分类号： O482.31
- 网络首发：2020-01-25，
  
  纸质出版：2020
- 稿件说明：
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鲁重瑞, 赵韦人, 廖子锋, 宋静周, 夏梦龙, 杨焕鑫. 铕掺杂NASICON结构红色荧光粉制备和发光性能[J]. 广东工业大学学报, 2020, 37(1): 27-33.

Lu Chong-rui, Zhao Wei-ren, Liao Zi-feng, et al. Preparation and Luminescence Properties of Eu³⁺ Doped NASICON-based Red Phosphors[J]. 2020, 37(1): 27-33. DOI: 10.12052/gdutxb.190018.
鲁重瑞, 赵韦人, 廖子锋, 宋静周, 夏梦龙, 杨焕鑫. 铕掺杂NASICON结构红色荧光粉制备和发光性能[J]. 广东工业大学学报, 2020, 37(1): 27-33. DOI： 10.12052/gdutxb.190018.

Lu Chong-rui, Zhao Wei-ren, Liao Zi-feng, et al. Preparation and Luminescence Properties of Eu³⁺ Doped NASICON-based Red Phosphors[J]. 2020, 37(1): 27-33. DOI: 10.12052/gdutxb.190018. DOI：

摘要

采用高温固相法在空气气氛中制备了具有NASICON结构的Eu

掺杂Na

: Eu

红色荧光粉。利用X射线衍射、漫反射光谱、荧光光谱、荧光寿命衰减曲线以及量子效率系统研究了该样品的晶体结构及荧光性能。结果表明

样品XRD图中不含明显的杂峰

表明在实验浓度范围内Eu

的掺杂没有改变基质的晶体结构

样品为单相。合成过程中

需要对样品多次压片烧结

才能获得较好的单相。在近紫外光激发下

样品能发出618 nm红光

荧光强度最大对应的Eu

的掺杂摩尔分数是24%。根据Rexter理论分析

浓度猝灭源于Eu

离子之间的电四极−电四极相互作用。样品在室温下的最高内量子效率和外量子效率分别是61%和15%

荧光衰减的寿命范围在2.08~2.84 ms。样品Na

2.76

: 0.24 Eu

在150 ℃时内量子效率约为50%

表明样品具有良好的热稳定性。将样品Na

2.76

: 0.24 Eu

与394 nm波长的紫外芯片封装成LED灯

显色指数达到75.6. Eu

掺杂Na

有望作为一种新型红色荧光粉用于近紫外激发白光LED。

Abstract

In order to explore a new type of red phosphor

doped NASICON structure-based phosphors Na

:Eu

were prepared by high temperature solid phase method in air atm

osphere. The crystal structure and optical properties of the samples were systematically studied by X-ray diffraction

diffuse reflectance spectroscopy

fluorescence spectroscopy

fluorescence lifetime decay curve and quantum efficiency. The results demonstrate that XRD patterns confirm the pure phase of Na

: Eu

phosphor as obtained

since not any excess peaks can be found in XRD patterns and Eu

doping does not change the crystal structure of Na

host. Eu

doping ensures the red emission at 618 nm under the excitation at UV light. An optimized doping concentration of Eu

is 24%

while the quenching mechanism beyond the doping concentration at 24% is electric quadrupole-electric quadrupole interaction according to Rexter Theory. The highest internal and external quantum efficiencies are 61% and 15%

respectively; furthermore

the luminescence quenching can be suppressed even at 150 ℃

depending on a high internal quantum efficiency about 50%. It is packaged into an LED lamp with a color rendering index of 79.4. Therefore

doped Na

is expected to be used as a new type of red phosphor for white LEDs.

关键词

Keywords

references

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