Synthesis and Luminescent Properties of Gd2[1-<italic style="font-style: italic">x</italic>(<italic style="font-style: italic">y</italic>)]Eu2<italic style="font-style: italic">x</italic>(<italic style="font-style: italic">y</italic>)W<italic style="font-style: italic">z</italic>Mo(1-<italic style="font-style: italic">z</italic>)O6 Red Phosphors

Min ZHANG; Chun-yan CAO; Chen-lin ZHANG; Zi-jun CHEN; Bi-hai BAI; Ni-hui HUANG; An XIE

doi:10.37188/CJL.20220092

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Synthesis and Luminescent Properties of Gd_2[1-_x₍_y_)]Eu₂_x₍_y₎W_zMo_(1-_z₎O₆ Red Phosphors

Synthesis and Properties of Materials | 更新时间：2022-08-01

- Synthesis and Luminescent Properties of Gd_2[1-_x₍_y_)]Eu₂_x₍_y₎W_zMo_(1-_z₎O₆ Red Phosphors
  增强出版
- Chinese Journal of Luminescence Vol. 43, Issue 7, Pages: 1086-1094(2022)
- 作者机构：
  
  1.厦门理工学院材料科学与工程学院福建省功能材料及应用重点实验室，福建厦门 361024
- 作者简介：
- 基金信息：
  
  Natural Science Foundation of Fujian Province(2021J011207);Open Fund of Fujian Provincial Key Laboratory of Functional Materials and Applications(厦门理工学院fma2022006);Key Project of Natural Science Foundation of Fujian Province(2020J02049)
- DOI：10.37188/CJL.20220092
  CLC：
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Min ZHANG, Chun-yan CAO, Chen-lin ZHANG, et al. Synthesis and Luminescent Properties of Gd_2[1-_x₍_y_)]Eu₂_x₍_y₎W_zMo_(1-_z₎O₆ Red Phosphors. [J]. Chinese Journal of Luminescence 43(7):1086-1094(2022)
DOI：

Min ZHANG, Chun-yan CAO, Chen-lin ZHANG, et al. Synthesis and Luminescent Properties of Gd_2[1-_x₍_y_)]Eu₂_x₍_y₎W_zMo_(1-_z₎O₆ Red Phosphors. [J]. Chinese Journal of Luminescence 43(7):1086-1094(2022) DOI： 10.37188/CJL.20220092.

摘要

采用高温固相法制备了Gd,2（1-,x,）,Eu,2,x,WO,6,（0≤,x,≤0.35）、Gd,2（1-,y,）,Eu,2,y,MoO,6,（0≤,y,≤0.25）和Gd,1.9,Eu,0.1,W,z,Mo,（1-,z,）,O,6 ,（0≤,z,≤1）系列红色荧光粉。探索了Gd,2（1-,x,）,Eu,2,x,WO,6,荧光粉和Gd,2（1-,y,）, Eu,2,y,MoO,6,荧光粉的最佳合成温度及最佳Eu,3+,掺杂浓度，并进一步探索了W,6+,、Mo,6+,比例对Gd,1.9,Eu,0.1,W,z,Mo,（1-,z,）,O,6,结构、形貌及发光性能的影响。随着Eu,3+,浓度增加，在Gd,2（1-,x,）,Eu,x,WO,6,和Gd,2（1-,y,）,Eu,2,y,MoO,6,荧光粉X射线衍射图中观察到衍射峰向小角度方向偏移。研究了Gd,2（1-,x,）,Eu,2,x,WO,6,中Eu,3+,发光浓度猝灭机理。随着Mo,6+,含量增加，在Gd,1.9,Eu,0.1,W,z,Mo,（1-,z,）,O,6,中观察到电荷迁移带红移现象，并通过漫反射谱推算了荧光粉材料带隙值。通过扫描电镜图像及电子能谱表征了W,6+,、Mo,6+,比例改变对荧光粉颗粒形貌及组成的影响。

Abstract

Gd,2（1-,x,）,Eu,2,x,WO,6,（0≤,x,≤0.35）， Gd,2（1-,y,）,Eu,2,y,MoO,6,（0≤,y,≤0.25） and Gd,1.9,Eu,0.1,W,z,Mo,（1-,z,）,O,6,（0≤ ,z,≤1） series of red phosphor were prepared by high temperature solid-state reaction method. The optimum synthesis temperature and the optimum doping concentration of Eu,3+, in Gd,2（1-,x,）,Eu,2,x,WO,6, and Gd,2（1-,y,）,Eu,2,y,MoO,6, phosphors were explored. The effects of W,6+, and Mo,6+, ratio on Gd,1.9,Eu,0.1,W,z,Mo,1-,z,O,6, phosphors were further explored. In Gd,2（1-,x,）,Eu,2,x,WO,6, and Gd,2（1-,y,）,Eu,2,y,MoO,6 ,phosphors， the diffraction peaks moved to small angle with the Eu,3+, concentration increasing. The luminescence concentration quenching mechanisms of Eu,3+, in Gd,2（1-,x,）,Eu,2,x,WO,6, were studied. With the content of Mo,6+, increasing， the red-shift of the charge transfer band was observed in Gd,1.9,Eu,0.1,W,z,Mo,（1-,z,）,O,6, phosphors. The values of energy band gaps of some phosphors were calculated based on diffuse reflectance spectra. The morphologies and the compositions of some phosphors were characterized by field emission scanning electron microscope and energy disperse spectroscopy.

关键词

高温固相法荧光粉光致发光浓度猝灭红移

Keywords

high temperature solid state reaction methodphosphorsphotoluminescenceconcentration quenchingred shift

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张敏（1997-），女，山东菏泽人，硕士研究生，2020年于厦门理工学院获得学士学位，主要从事稀土离子掺杂红色荧光粉的研究。. doi: 10.1016/j.jallcom.2021.159698http://dx.doi.org/10.1016/j.jallcom.2021.159698

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Key Laboratory of Functional Materials and Applications School of Materials Science and Engineering， Xiamen University of Technology

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Synthesis and Luminescent Properties of Gd2[1-x(y)]Eu2x(y)WzMo(1-z)O6 Red Phosphors

DOI：10.37188/CJL.20220092

摘要

Abstract

关键词

Keywords

references

Synthesis and Luminescent Properties of Gd_2[1-_x₍_y_)]Eu₂_x₍_y₎W_zMo_(1-_z₎O₆ Red Phosphors