Sm3+ 掺杂对CaMoO4 ∶ Eu3+ 红色荧光粉结构和发光性质的影响

丁洪岩; 孙江亭; 刘威; 孟庆裕; 吕树臣

doi:10.3788/fgxb20113205.0456

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Sm³⁺ 掺杂对CaMoO₄ ∶ Eu³⁺ 红色荧光粉结构和发光性质的影响

材料合成及性能研究 | 更新时间：2020-08-12

- Sm³⁺ 掺杂对CaMoO₄ ∶ Eu³⁺ 红色荧光粉结构和发光性质的影响
- Effect of Sm³⁺ Doping on Structural and Luminescent Properties of CaMoO₄ ∶ Eu³⁺ Red Phosphors
- 发光学报 2011年32卷第5期页码：456-461
- 作者机构：
  
  哈尔滨师范大学物理与电子工程学院黑龙江省先进功能材料与激发态重点实验室,黑龙江哈尔滨,150025
- 作者简介：
- 基金信息：
  
  黑龙江省教育厅科研项目(11551148)资助()
- DOI：10.3788/fgxb20113205.0456
  中图分类号： O482.31
- 收稿日期：2010-11-09，
  
  修回日期：2011-02-27，
  
  网络出版日期：2011-05-22，
  
  纸质出版日期：2011-05-22
- 稿件说明：
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丁洪岩, 孙江亭, 刘威, 孟庆裕, 吕树臣. Sm3+ 掺杂对CaMoO4 ∶ Eu3+ 红色荧光粉结构和发光性质的影响[J]. 发光学报, 2011,32(5): 456-461

DING Hong-yan, SUN Jiang-ting, LIU Wei, MENG Qing-yu, LV Shu-chen. Effect of Sm3+ Doping on Structural and Luminescent Properties of CaMoO4 ∶ Eu3+ Red Phosphors[J]. Chinese Journal of Luminescence, 2011,32(5): 456-461
丁洪岩, 孙江亭, 刘威, 孟庆裕, 吕树臣. Sm3+ 掺杂对CaMoO4 ∶ Eu3+ 红色荧光粉结构和发光性质的影响[J]. 发光学报, 2011,32(5): 456-461 DOI： 10.3788/fgxb20113205.0456.

DING Hong-yan, SUN Jiang-ting, LIU Wei, MENG Qing-yu, LV Shu-chen. Effect of Sm3+ Doping on Structural and Luminescent Properties of CaMoO4 ∶ Eu3+ Red Phosphors[J]. Chinese Journal of Luminescence, 2011,32(5): 456-461 DOI： 10.3788/fgxb20113205.0456.

摘要

采用共沉淀法制备了CaMoO

∶ Eu

纳米荧光粉材料。系统研究了Sm

离子的引入对CaMoO

∶ Eu

材料的结构和发光性质的影响。结果表明:纳米材料的尺寸随着Sm

离子掺杂浓度的增加而变小。Sm

的引入

可实现Sm

和Eu

之间的能量传递

使Eu

在近紫外405 nm处的激发增强

进而使Eu

在613 nm的红光发射增强

且Sm

的摩尔分数为5%时

发光强度最强。计算得到CaMoO

∶ 0.1Eu

和CaMoO

∶ 0.1Eu

0.05Sm

红光发射的色度坐标分别为(0.661

0.329)和(0.667

0.328)。可见

的引入可有效提高CaMoO

∶ 0.1Eu

发光的色纯度

使之更好地接近国际标准值(0.67

0.33)。

Abstract

Rare earth ion doped phosphors have attracted great interest during the past several decades due to their unique physical and chemical properties. Among these rare earth ions

the Eu

ion can emit red fluorescence centered at around 613 nm

corresponding to the

transition. Thus many Eu

-doped materials can be used as red phosphors for white LEDs. In this paper

the Eu

and Sm

co-doped CaMoO

red phosphors were synthesized using a coprecipitation method. The effect of Sm

doping on structural and luminescent properties of CaMoO

∶ Eu

red phosphors were studied. The results indicate that the particle size of the samples decrease with Sm

doping concentration. The excitation intensity at around 405 nm and emission intensity at around 613 nm of Eu

increased after the introduction of Sm

ions. When the mole fraction of Sm

is 5%

the emission intensity of red light is the strongest. In addition

the chromaticity coordinates for CaMoO

∶ 0.1Eu

and CaMoO

∶ 0.1Eu

0.05Sm

phosphors are (0.661

0.329) and (0.667

0.328)

respectively. The chromaticity coordinates of CaMoO

∶ 0.1Eu

0.05Sm

phosphors is closer to the Commission International del Eclairage (CIE) chromaticity coordinates(0.67

0.33). In conclusion

the Eu

and Sm

co-doped CaMoO

is a high performance red phosphor and has a potential application in white light emitting diodes.

关键词

Keywords

references

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