Effects of Bi3+ Concentration on Luminescent Properties of Sr2MgSi2 O7∶Eu2+ Phosphor

ZHANG Shao-hua; JIANG Liu-yang; ZHANG Jing; XIE Bing

doi:10.3788/fgxb20123308.0824

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Effects of Bi³⁺ Concentration on Luminescent Properties of Sr₂MgSi₂ O₇∶Eu²⁺ Phosphor

更新时间：2020-08-12

- Effects of Bi³⁺ Concentration on Luminescent Properties of Sr₂MgSi₂ O₇∶Eu²⁺ Phosphor
- Chinese Journal of Luminescence Vol. 33, Issue 8, Pages: 824-827(2012)
- 作者机构：
  
  1. 南昌大学测试分析中心, 江西南昌 330029
  2. 南昌大学材料科学与工程学院, 江西南昌 330031
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123308.0824
  CLC： O482.31
- Received：22 May 2012，
  
  Revised：12 June 2012，
  
  Published：10 August 2012
- 稿件说明：
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章少华, 江柳杨, 张璟, 谢冰. Bi3+掺杂对Sr2MgSi2O7∶Eu2+荧光粉的结构及发光性能的影响[J]. 发光学报, 2012,33(8): 824-827

ZHANG Shao-hua, JIANG Liu-yang, ZHANG Jing, XIE Bing. Effects of Bi3+ Concentration on Luminescent Properties of Sr2MgSi2 O7∶Eu2+ Phosphor[J]. Chinese Journal of Luminescence, 2012,33(8): 824-827
章少华, 江柳杨, 张璟, 谢冰. Bi3+掺杂对Sr2MgSi2O7∶Eu2+荧光粉的结构及发光性能的影响[J]. 发光学报, 2012,33(8): 824-827 DOI： 10.3788/fgxb20123308.0824.

ZHANG Shao-hua, JIANG Liu-yang, ZHANG Jing, XIE Bing. Effects of Bi3+ Concentration on Luminescent Properties of Sr2MgSi2 O7∶Eu2+ Phosphor[J]. Chinese Journal of Luminescence, 2012,33(8): 824-827 DOI： 10.3788/fgxb20123308.0824.

摘要

采用溶胶-凝胶法在还原气氛下制备了Sr

MgSi

∶Eu

(

0.02

0.04

0.06

0.08

0.1)荧光粉

并用XRD、TG-DTA及激发与发射谱仪对样品的结构及发光性能进行了表征。结果发现:单掺杂Bi

的Sr

MgSi

样品的发射光谱所用的材料的激发光谱为一主峰为286 nm的宽带谱

这是由于激发态时Bi

的

→

电子能级跃迁而造成的;单掺杂Eu

的Sr

MgSi

样品的发射光谱所用的材料的激发光谱为一主峰为358 nm的宽带谱

这是典型的Eu

的4f

→4f

跃迁而引起的。当Bi

离子掺杂到Sr

MgSi

∶Eu

样品的摩尔分数为0.04时

样品的发射强度是未掺杂Bi

离子样品的1.9倍。

Abstract

Blue luminescent Sr

MgSi

∶Eu

(

0.02

0.04

0.06

0.08

0.1) powder phosphors have been successfully synthesized by sol-gel method. Their structure and luminescent properties were analyzed by XRD

DTA-TG

and PL spectra. Emission spectra of Sr

MgSi

∶Bi

powder phosphors with

=286 nm (

→

) and Sr

MgSi

∶Eu

(

0.02

0.04

0.06

0.08

0.1) phosphors with

=358 nm (4f

→4f

) have been analyzed. Based on the emission performance of Sr

MgSi

∶Eu

the optimized Bi

mole fraction is 0.04. The luminescent intensity of the phosphor increases up to 1.9 times than that of phosphors without doping Bi

which due to the sensitization of Bi

to Eu

关键词

Keywords

references

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Mu Z F, Hu Y H, Chen L, et al. Enhanced luminescence of Dy3+in Y3Al5O12 by Bi3+co-doping [J]. J. Lumin., 2011, 131(8):1687-1691.

He Y Y, Zhao M Q, Song Y Y. Effect of Bi3+ on fluorescence properties of YPO4∶Dy3+ phosphors synthesized by a modified chemical co-precipitation method [J]. J. Lumin., 2011, 131(1):1144-1148.

Zhang S H, Hu J F, Zhou M B, et al. Preparation and photoluminescence of Ca2MgSi2O7∶Eu2+ phosphor powder [J]. Chin. J. Lumin.(发光学报), 2010, 31(1):54-58 (in Chinese).

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