Y3Al5O12:Ce3+的合成及真空紫外发光性质

沈雷军; 赵增祺; 万作波; 周永勃; 李波; 张国斌

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Y₃Al₅O₁₂:Ce³⁺的合成及真空紫外发光性质

论文 | 更新时间：2020-08-12

- Y₃Al₅O₁₂:Ce³⁺的合成及真空紫外发光性质
- Synthesis of Ce³⁺ Doped Y₃Al₅O₁₂ and Its VUV Spectral Characteristics
- 发光学报 2008年29卷第2期页码：269-273
- 作者机构：
  
  1. 中国科学技术大学, 国家同步辐射实验室,安徽合肥,230029
  2. 包头稀土研究院,内蒙古包头,014010
- 作者简介：
- 基金信息：
  
  内蒙古重点科技攻关项目资助(20050205)()
- DOI：
  中图分类号： O482.31
- 收稿日期：2007-07-13，
  
  修回日期：2007-09-20，
  
  纸质出版日期：2008-03-20
- 稿件说明：
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沈雷军, 赵增祺, 万作波, 周永勃, 李波, 张国斌. Y3Al5O12:Ce3+的合成及真空紫外发光性质[J]. 发光学报, 2008,29(2): 269-273

SHEN Lei-jun, ZHAO Zeng-qi, WAN Zuo-bo, ZHOU Yong-bo, LI Bo, ZHANG Guo-bin. Synthesis of Ce3+ Doped Y3Al5O12 and Its VUV Spectral Characteristics[J]. Chinese Journal of Luminescence, 2008,29(2): 269-273
沈雷军, 赵增祺, 万作波, 周永勃, 李波, 张国斌. Y3Al5O12:Ce3+的合成及真空紫外发光性质[J]. 发光学报, 2008,29(2): 269-273 DOI：

SHEN Lei-jun, ZHAO Zeng-qi, WAN Zuo-bo, ZHOU Yong-bo, LI Bo, ZHANG Guo-bin. Synthesis of Ce3+ Doped Y3Al5O12 and Its VUV Spectral Characteristics[J]. Chinese Journal of Luminescence, 2008,29(2): 269-273 DOI：

摘要

采用高温固相反应及共沉淀法合成Y

:Ce

(x=0.01

0.03

0.05

0.07

0.09)黄色系列粉末状发光材料。经X射线衍射分析产物为单相

属立方晶系

其结果与JCPDS标准卡(88-2047)相符。分析了两种方法合成的粉末样品的SEM照片

发现共沉淀法不仅能降低合成温度

对细化粉体晶粒粒度也有较大作用。检测了材料的真空紫外激发光谱和发射光谱。发现

:Ce

的真空紫外激发光谱

在100~300nm范围内呈三个带状峰

峰值分别在126

177

230nm附近。随着Ce

含量x由0.01增加到0.05

YAG:Ce

发射强度逐渐增加到最大值

之后随着x继续增加其发射强度逐渐下降

呈现明显的浓度猝灭现象。

Abstract

The Y

:Ce

(x=0.01

0.03

0.05

0.07

0.09)samples were synthesized by the conventional solid state reaction method as well as co-precipitation method. XRD analysis shows that the synthesized samples are all in single lattice phase with cubic structure

which is consistent with the JCPDS standard card (88-2047). From the SEM analyses

the use of co-precipitation method decreases the synthesis temperature of the samples

and results in fine grains and particles in these materials. In the VUV excitation spectrum of YAG:Ce

three separative peaks are found at 126 nm

177 nm and 230 nm

respectively. There is a wide asymmetry emission band peaked at about 530～540 nm

and resulted from two transitions of 5d

→2

5/2

and 5d

→2

7/2

of Ce

in the PL emission spectra. The intensity of emission spectra of Y

:Ce

x(x=0.01

0.03

0.05

0.07

0.09)increases as x increases from 0. 01 to 0.05

and then decreases when x increases from 0. 05 to 0.09 further. The phenomenon accords with characteristic concentration quenching.

关键词

Keywords

references

Zhou Y H,Lin J,Yu M.Synthesis-dependent luminescence properties of Y3Al5O12:Re(Re=Ce,Sm,Tb) phosphors[J].Materials Lett.,2002,56(5):628-636.

Moazynaki M,Ludziejewaki T,Wolaki D,et al.Properties of YAG:Ce scintillation[J].Nuclear Instrument and Methods in Physics Research A,1994,345(3):461-467.

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Ding Zhili,Chen Shong,Han Jiecai.Comparison for properties of yttrium aluminum garnet nano-sized powder prepared by different methods[J].J.Chin.Ceramic Society (硅酸盐学报),2005,33(3):380-385 (in Chinese).

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LiuRuxi,ShiJingren.Study of formulation and mechanism of yttriun aluminum garnet phosphors for use in white light emitting diodes[J].J.Chinese Rare Earth Society (中国稀土学报),2002,20(6):495-501 (in Chinese).

LI Xia,Liu Hong,Wang Jiyang,et al.Synthesis of yttrium aluminium garnet(YAG) nano-sized powders by mixed solvo-thermal method[J].J.Inorganic Materials (无机材料学报),2004,19(5):1168-1172 (in Chinese).

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