Effects of Y3+ and Gd3+ Ions on Structure and Luminescence Properties of LaBO3: Eu3+ Phosphors

MA Jing; ZHAO Wan-nan; LI Yan-hong

doi:10.3788/fgxb20183909.1213

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Effects of Y³⁺ and Gd³⁺ Ions on Structure and Luminescence Properties of LaBO₃: Eu³⁺ Phosphors

更新时间：2020-08-12

- Effects of Y³⁺ and Gd³⁺ Ions on Structure and Luminescence Properties of LaBO₃: Eu³⁺ Phosphors
- Chinese Journal of Luminescence Vol. 39, Issue 9, Pages: 1213-1219(2018)
- 作者机构：
  
  1. 沈阳化工大学材料科学与工程学院,辽宁沈阳,110142
  2. 中国振华(集团) 新云电子元器件有限责任公司, 贵州贵阳 550018
- 作者简介：
- 基金信息：
  
  Supported by Science and Technology Research Project of Liaoning Education Departmen
- DOI：10.3788/fgxb20183909.1213
  CLC： TQ133.3;O482.31
- Received：11 December 2017，
  
  Revised：29 March 2018，
  
  Published Online：16 April 2018，
  
  Published：05 September 2018
- 稿件说明：
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马晶, 赵婉男, 李艳红. Y3+和Gd3+对LaBO3:Eu3+发光粉结构和发光性能的影响[J]. 发光学报, 2018,39(9): 1213-1219

MA Jing, ZHAO Wan-nan, LI Yan-hong. Effects of Y3+ and Gd3+ Ions on Structure and Luminescence Properties of LaBO3: Eu3+ Phosphors[J]. Chinese Journal of Luminescence, 2018,39(9): 1213-1219
马晶, 赵婉男, 李艳红. Y3+和Gd3+对LaBO3:Eu3+发光粉结构和发光性能的影响[J]. 发光学报, 2018,39(9): 1213-1219 DOI： 10.3788/fgxb20183909.1213.

MA Jing, ZHAO Wan-nan, LI Yan-hong. Effects of Y3+ and Gd3+ Ions on Structure and Luminescence Properties of LaBO3: Eu3+ Phosphors[J]. Chinese Journal of Luminescence, 2018,39(9): 1213-1219 DOI： 10.3788/fgxb20183909.1213.

摘要

采用溶胶凝胶-燃烧法合成了系列不同掺杂浓度Y

和Gd

的LaBO

∶Eu

发光粉，对其结构、形貌和发光性能进行了表征。XRD研究结果表明：发光粉的结构与基质掺杂离子的种类和掺杂浓度有关系。荧光光谱结果表明：适量比例Y

和Gd

离子掺杂将提高LaBO

∶Eu

发光粉的发光强度。Y

和Gd

离子最佳掺杂摩尔分数分别为1.5%和12.5%。

与

跃迁发射的相对强度比值说明：掺杂改变LaBO

∶Eu

中Eu

局域环境的对称性。发光性能改变主要受晶体结构、掺杂离子电负性影响。Gd

离子掺杂更有利于发光粉结构稳定性和发光性能的改善。

Abstract

A series of LaBO

:Eu

phosphors with Y

and Gd

ions different doping concentrations were prepared by sol-gel combustion method. The structure

morphology and luminescence are characterized. The results of XRD indicate that the structures of phosphors are related to doping ions and doping concentration of matrix. The results of emission and excitation spectra show that the luminescence intensity of LaBO

:Eu

phosphors is enhanced by appropriate proportion Y

and Gd

ions doping in hosts. Y

and Gd

optimum doping mole fraction is 1.5% and 12.5%

respectively. The

relative emission intensity ratios show that the local symmetry environment around Eu

ions is changed because of doping ions. The luminescence properties are influenced by the crystal structure and electronegativity of doping ion. In addition

the Gd

doping is more advantageous to the stability of structure and improvement of luminescence properties.

关键词

Keywords

references

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