Microstructure and Luminescence Characteristics of YxAl5O12:Ce3+ Phosphor

ZHAO Cong; MA Ming-xing; Han Tao; CAO Shi-xiu; Lei Yu; ZHU Da-chuan

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Microstructure and Luminescence Characteristics of Y_xAl₅O₁₂:Ce³⁺ Phosphor

paper | 更新时间：2020-08-12

- Microstructure and Luminescence Characteristics of Y_xAl₅O₁₂:Ce³⁺ Phosphor
- Chinese Journal of Luminescence Vol. 32, Issue 9, Pages: 874-879(2011)
- 作者机构：
  
  1. 四川大学材料科学与工程学院, 四川成都 610065
  2. 重庆文理学院材料交叉学科研究中心, 重庆市高校微纳米材料工程与技术重点实验室重庆,402168
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：20 May 2011，
  
  Revised：22 June 2011，
  
  Published Online：22 September 2011，
  
  Published：22 September 2011
- 稿件说明：
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赵聪, 马明星, 韩涛, 曹仕秀, 雷宇, 朱达川. YxAl5O12:Ce3+荧光粉的微结构及其发光特性[J]. 发光学报, 2011,32(9): 874-879

ZHAO Cong, MA Ming-xing, Han Tao, CAO Shi-xiu, Lei Yu, ZHU Da-chuan. Microstructure and Luminescence Characteristics of YxAl5O12:Ce3+ Phosphor[J]. Chinese Journal of Luminescence, 2011,32(9): 874-879
赵聪, 马明星, 韩涛, 曹仕秀, 雷宇, 朱达川. YxAl5O12:Ce3+荧光粉的微结构及其发光特性[J]. 发光学报, 2011,32(9): 874-879 DOI：

ZHAO Cong, MA Ming-xing, Han Tao, CAO Shi-xiu, Lei Yu, ZHU Da-chuan. Microstructure and Luminescence Characteristics of YxAl5O12:Ce3+ Phosphor[J]. Chinese Journal of Luminescence, 2011,32(9): 874-879 DOI：

摘要

采用共沉淀法合成Y

:Ce

系列荧光粉

用多晶X 射线衍射、SEM及荧光光谱对Y

:Ce

系列荧光粉的晶体结构、形貌及发光性能进行表征。结果表明:随着

从2.64递增到3.06

波长先缓慢红移

然后迅速蓝移;发光强度先增强

然后迅速减弱;当

=2.88时

出现了最大发射峰值波长(

=537 nm)和最高相对发光强度。当

＜2.64时

出现Al

杂相;

＞3.06时

粉体中出现YAM杂相。

在2.76~2.88区间时

材料结晶度高

容易分散。

Abstract

:Ce

phosphors have been synthesized by co-precipitation method. The crystalline structure

morphology and luminescence properties of Y

:Ce

phosphors have been investigated by X-ray diffraction (XRD)

Scanning Electron Microscope (SEM) and fluorescence spectrophotometer. The results show that the emission wavelengths of as-prepared phosphors display red-shift at first and then blue-shift appears with the molar of Y

increasing from 2.64 to 3.06. The emission intensity increases slowly with the mole of Y

increasing from 2.64 to 2.88

but the intensity decreases sharply with different Y

content when it was beyond 2.94. The maximum emission wavelength (

=537 nm) at the maximum intensity appears when

is 2.88. The impure phase-Al

appears when the content of Y

is below 2.64. When the mole of Y

exceeds 3.06

the impure phase-YAM appears

which has negative effects on the luminescence property of as-prepared phosphors. When the molar ratio of yttrium rises from 2.76 to 2.88

the powder is observed with high crystalline and easy dispersion.

关键词

Keywords

references

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