Luminescence of Blue-purple Emitting Sr2SiO4:Ce3+,Li+ Phosphor

YOU Jing; XIA Li-na; LI Xiang-qi; XIE Xiu-zhen

doi:10.3788/fgxb20163702.0131

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Luminescence of Blue-purple Emitting Sr₂SiO₄:Ce³⁺,Li⁺ Phosphor

更新时间：2020-08-12

- Luminescence of Blue-purple Emitting Sr₂SiO₄:Ce³⁺,Li⁺ Phosphor
- Chinese Journal of Luminescence Vol. 37, Issue 2, Pages: 131-137(2016)
- 作者机构：
  
  1. 福州大学材料科学与工程学院,福建福州,350108
  2. 福州大学生态环境材料先进技术重点实验室,福建福州,350108
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20163702.0131
  CLC： O482.31
- Received：20 November 2015，
  
  Revised：08 December 2015，
  
  Published：10 February 2016
- 稿件说明：
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游静, 夏丽娜, 李湘祁等. Sr2SiO4:Ce3+,Li+蓝紫色荧光粉发光性能的研究[J]. 发光学报, 2016,37(2): 131-137

YOU Jing, XIA Li-na, LI Xiang-qi etc. Luminescence of Blue-purple Emitting Sr2SiO4:Ce3+,Li+ Phosphor[J]. Chinese Journal of Luminescence, 2016,37(2): 131-137
游静, 夏丽娜, 李湘祁等. Sr2SiO4:Ce3+,Li+蓝紫色荧光粉发光性能的研究[J]. 发光学报, 2016,37(2): 131-137 DOI： 10.3788/fgxb20163702.0131.

YOU Jing, XIA Li-na, LI Xiang-qi etc. Luminescence of Blue-purple Emitting Sr2SiO4:Ce3+,Li+ Phosphor[J]. Chinese Journal of Luminescence, 2016,37(2): 131-137 DOI： 10.3788/fgxb20163702.0131.

摘要

以MCM-41为硅源

采用共沉淀法制备Sr

SiO

(

=0.01~0.09

步长为0.01)和Sr

1.95-

SiO

: 0.05Ce

(

= 0.01~0.07

步长为0.02)蓝紫色荧光粉。Sr

SiO

的发射光谱是一个不对称的宽带

最大峰值在410 nm左右。Ce

的最佳掺杂量为5%。Ce

离子倾向于占据九配位的Sr(Ⅱ)格位。共掺电荷补偿剂Li

可以有效地提高Sr

1.95

SiO

: 0.05Ce

的发光强度

其中Li

离子对1 100 ℃煅烧样品的发光强度的提高程度比1 000 ℃的更高

的最佳掺杂量为

=0.05。

Abstract

Blue-purple emitting Sr

SiO

(

=0.01-0.09

in steps of 0.01) and Sr

1.95-

SiO

:0.05Ce

(

=0.01-0.07

in steps of 0.02) phosphors have been prepared by co-precipitation method with MCM-41 as silica source. The emission spectra of Sr

SiO

show an asymmetric broad band with a maximum around 410 nm and the critical mole fraction is found to be 5%. Ce

ions prefer nine-coordinated Sr(Ⅱ) sites over ten-coordinated Sr(Ⅰ) sites. The emission intensity of Sr

1.95

SiO

:0.05Ce

can be improved effectively by co-doping Li

ions as charge compensator and a greater degree of the improvement is observed for phosphor calcined at 1 100 ℃ compared with 1 000 ℃. The most suitable doping amount of Li

for Sr

1.95-

SiO

:0.05Ce

=0.05.

关键词

Keywords

references

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