Surface Coating of Y(PV)O4:Eu3+ Phosphor with Y(OH)3

XIE Ye; WANG Tao; WANG Hai-bo

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Surface Coating of Y(PV)O₄:Eu³⁺ Phosphor with Y(OH)₃

paper | 更新时间：2020-08-12

- Surface Coating of Y(PV)O₄:Eu³⁺ Phosphor with Y(OH)₃
- Chinese Journal of Luminescence Vol. 31, Issue 6, Pages: 821-825(2010)
- 作者机构：
  
  1. 南京工业大学材料科学与工程学院,江苏南京,210009
  2. 南京工业大学电光源材料科学研究所,江苏南京,210015
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31;TN104.3
- Received：19 November 2009，
  
  Revised：11 March 2010，
  
  Published Online：22 November 2010，
  
  Published：22 November 2010
- 稿件说明：
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谢晔, 王涛, 王海波. Y(PV)O4:Eu3+荧光粉表面包覆Y(OH)3的性能[J]. 发光学报, 2010,31(6): 821-825

XIE Ye, WANG Tao, WANG Hai-bo. Surface Coating of Y(PV)O4:Eu3+ Phosphor with Y(OH)3[J]. Chinese Journal of Luminescence, 2010,31(6): 821-825
谢晔, 王涛, 王海波. Y(PV)O4:Eu3+荧光粉表面包覆Y(OH)3的性能[J]. 发光学报, 2010,31(6): 821-825 DOI：

XIE Ye, WANG Tao, WANG Hai-bo. Surface Coating of Y(PV)O4:Eu3+ Phosphor with Y(OH)3[J]. Chinese Journal of Luminescence, 2010,31(6): 821-825 DOI：

摘要

采用化学共沉淀法对Y(PV)O

:Eu

荧光粉进行表面包膜处理

获得了表面均匀包覆Y(OH)

膜层的Y(PV)O

:Eu

荧光粉。用SEM、XRD等手段对其表面形貌、晶格结构性能进行了表征。结果表明:在Y(PV)O

:Eu

粉体表面均匀包覆Y(OH)

膜层后

Y(PV)O

:Eu

的晶格结构、发光性能没有改变

亮度较未包覆的荧光粉有较大提高

且没有发生色坐标偏移现象。

Abstract

In this work

Y(PV)O

:Eu

phosphors were coated with Y(OH)

by the coprecipitation process. The surface morphology and the crystal structure were characterized by SEM and XRD

respectively. The results indicated that the surface of Y(PV)O

:Eu

phosphors are evenly coated by Y(OH)

and the crystal structure of the coated Y(PV)O

:Eu

phosphors remains the same with the uncoated samples

i.e.

after surface treatment

the luminance centre of Eu

does not shift

the emission is still at about 620 nm. The color coordinates of Y(PV)O

:Eu

are

=0.660

=0.340

so it can meet the requirement of PDP. The emitting spectra of Y(PV)O

:Eu

phosphor particles coated with Y(OH)

and without coating were investigated under 308 nm excitation. The results demonstrated that the initial luminance of coated Y(PV)O

:Eu

phosphors is higher than the uncoated samples. This method is simple

convenient and economical as compared with other methods.

关键词

Keywords

references

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