Synthesis of Ce3+ Doped Y3Al5O12 and Its VUV Spectral Characteristics

SHEN Lei-jun; ZHAO Zeng-qi; WAN Zuo-bo; ZHOU Yong-bo; LI Bo; ZHANG Guo-bin

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Synthesis of Ce³⁺ Doped Y₃Al₅O₁₂ and Its VUV Spectral Characteristics

更新时间：2020-08-12

- Synthesis of Ce³⁺ Doped Y₃Al₅O₁₂ and Its VUV Spectral Characteristics
- Chinese Journal of Luminescence Vol. 29, Issue 2, Pages: 269-273(2008)
- 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：
- DOI：
  CLC： O482.31
- Received：13 July 2007，
  
  Revised：20 September 2007，
  
  Published：20 March 2008
- 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

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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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