Luminescent Properties of YVO4·xTiO2 : Eu3+

LI Bo; SHEN Lei-jun; ZHOU Yong-bo; GAO Le-le; WANG Zhong-zhi; ZHANG Guo-bin

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Luminescent Properties of YVO₄·xTiO₂ : Eu³⁺

paper | 更新时间：2020-08-12

- Luminescent Properties of YVO₄·xTiO₂ : Eu³⁺
- Chinese Journal of Luminescence Vol. 30, Issue 6, Pages: 758-762(2009)
- 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. 稀土冶金及功能材料国家工程研究中心,内蒙古包头,014030
  3. 包头稀土研究院, 内蒙古包头 014030
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：06 February 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 December 2009，
  
  Published：30 December 2009
- 稿件说明：
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LI Bo, SHEN Lei-jun, ZHOU Yong-bo, et al. Luminescent Properties of YVO₄·xTiO₂ : Eu³⁺[J]. Chinese journal of luminescence, 2009, 30(6): 758-762.
DOI：

LI Bo, SHEN Lei-jun, ZHOU Yong-bo, et al. Luminescent Properties of YVO₄·xTiO₂ : Eu³⁺[J]. Chinese journal of luminescence, 2009, 30(6): 758-762. DOI：

摘要

采用高温固相方法合成了YVO

TiO

: Eu

(

=0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9)粉末状发光材料

经X射线衍射分析结构发现材料为两相共存。一相为YVO

属四方锆英石结构;另一相为Y

属立方烧绿石结构。研究了YVO

TiO

: Eu

在UV及VUV激发下的光谱性质

讨论了Ti 的掺杂对材料发光性能的影响

发现适量的Ti的掺入可以提高材料基质对UV及VUV的吸收。在UV及VUV激发下

YVO

TiO

: Eu

荧光粉的发射光谱主峰在616 nm和619 nm

证明Eu

占据了晶格中非反演对称中心的位置。在YVO

TiO

: Eu

的激发光谱中

有一中心位于155 nm的吸收带

它属于基质的吸收带。

Abstract

The samples of YVO

TiO

: Eu

(

=0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9) were synthesized by the conventional solid state reaction. The structure of prepared sample was measured by X-ray diffraction(XRD) at room temperature. XRD measurements confirmed that the prepared YVO

TiO

: Eu

is consisted of two phases. One phase is YVO

with the tetragonal according to JCPDS-Card (42-0413)

the other phase is Y

with the cubic pyrochlore according to JCPDS-Card (17-0341). Spectroscopic properties of the sample were studied under the UV/VUV excitation. The effects of Ti doping on the luminescent properties of the sample were investigated and it was found that reasonable Ti doping can highlight the absorption of matrix in UV/VUV rang. The emission spectrum is dominated by the red peaks at 616 nm and 619 nm due to the electric dipole transition

→

of Eu

. It indicated that Eu

occupies a site lacking inversion symmetry. There is one band peaked at 155 nm in the excitation spectrum of the sample

it could be assigned to the absorption of the host.

关键词

Keywords

references

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