Luminescent Properties of CaY1-xAlO4: xRE3+ (RE=Dy, Ho, Sm, Tm) Phosphors

CHEN Cai-hua; WANG Xiao-jun; MENG Li-li; ZHANG Li-xia; LIANG Li-fang

doi:10.3788/fgxb20183903.0273

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Luminescent Properties of CaY_1-xAlO₄: xRE³⁺ (RE=Dy, Ho, Sm, Tm) Phosphors

更新时间：2020-08-12

- Luminescent Properties of CaY_1-xAlO₄: xRE³⁺ (RE=Dy, Ho, Sm, Tm) Phosphors
- Chinese Journal of Luminescence Vol. 39, Issue 3, Pages: 273-279(2018)
- 作者机构：
  
  广西师范学院化学与材料科学学院,广西南宁,530001
- 作者简介：
- 基金信息：
  
  Supported by National Natural Science Foundation of China(21161004)
- DOI：10.3788/fgxb20183903.0273
  CLC： O482.31
- Received：25 June 2017，
  
  Revised：31 August 2017，
  
  Published Online：18 September 2017，
  
  Published：05 March 2018
- 稿件说明：
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陈彩花, 王小军, 蒙丽丽等. 稀土离子掺杂CaY1-xAlO4∶xRE3+(RE=Dy,Ho,Sm,Tm)荧光材料的发光性能[J]. 发光学报, 2018,39(3): 273-279

CHEN Cai-hua, WANG Xiao-jun, MENG Li-li etc. Luminescent Properties of CaY1-xAlO4: xRE3+ (RE=Dy, Ho, Sm, Tm) Phosphors[J]. Chinese Journal of Luminescence, 2018,39(3): 273-279
陈彩花, 王小军, 蒙丽丽等. 稀土离子掺杂CaY1-xAlO4∶xRE3+(RE=Dy,Ho,Sm,Tm)荧光材料的发光性能[J]. 发光学报, 2018,39(3): 273-279 DOI： 10.3788/fgxb20183903.0273.

CHEN Cai-hua, WANG Xiao-jun, MENG Li-li etc. Luminescent Properties of CaY1-xAlO4: xRE3+ (RE=Dy, Ho, Sm, Tm) Phosphors[J]. Chinese Journal of Luminescence, 2018,39(3): 273-279 DOI： 10.3788/fgxb20183903.0273.

摘要

采用溶胶凝胶法合成稀土离子掺杂CaY

AlO

∶

xRE

（

=Dy，Ho，Sm，Tm）荧光粉。采用X射线粉末衍射仪（XRD）、高分辨率透射电镜（TEM）和荧光分光光度计（PL）分别对荧光粉的物相结构、形貌以及荧光性能进行表征。研究结果表明，所合成样品为四方晶系结构的纳米级材料，在紫外光激发下，掺杂离子均表现出特征的f-f电子跃迁发射，当Dy

、Ho

、Sm

和Tm

的掺杂摩尔分数分别为0.03，0.015，0.015，0.02时，样品发光强度最大，分别发射出白光、绿光、橙光和蓝光。

Abstract

A series of phosphors CaY

AlO

xRE

(

=Dy

Tm) were synthesized by sol-gel method. X-ray powder diffraction (XRD)

high resolution transmission electron microscopy (TEM) and fluorescence spectrophotometer were utilized to characterize the samples on phase structure

morphology and fluorescence properties

respectively.The results show that the synthesized samples are nanometer material with tetragonal crystal structure.Under UV light excitation

the doped rare earth ions exhibit f-f feature level transitions. The doped ions give the strongest emission when the doped mole fraction (

) of Dy

and Tm

is 0.03

0.015

0.015 and 0.02

and give white

green

orange and blue emission

respectively.

关键词

Keywords

references

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