Luminescent Properties of Pr3+-activated CaMoO4 Red Phosphors

ZHANG Dan-dan; SHI Shi-kao; LUO Ming; LIU Xing-ren; ZHOU Ji

doi:10.3788/fgxb20123308.0840

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Luminescent Properties of Pr³⁺-activated CaMoO₄ Red Phosphors

更新时间：2020-08-12

- Luminescent Properties of Pr³⁺-activated CaMoO₄ Red Phosphors
- Chinese Journal of Luminescence Vol. 33, Issue 8, Pages: 840-844(2012)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,130033
  2. 河北师范大学化学与材料科学学院,河北石家庄,050024
  3. 清华大学材料科学与工程系, 北京 100084
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123308.0840
  CLC： O482.31;O614.33
- Received：22 May 2012，
  
  Revised：12 June 2012，
  
  Published：10 August 2012
- 稿件说明：
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张丹丹, 石士考, 罗鸣, 刘行仁, 周济. Pr3+激活的CaMoO4红色荧光粉的发光性质[J]. 发光学报, 2012,33(8): 840-844

ZHANG Dan-dan, SHI Shi-kao, LUO Ming, LIU Xing-ren, ZHOU Ji. Luminescent Properties of Pr3+-activated CaMoO4 Red Phosphors[J]. Chinese Journal of Luminescence, 2012,33(8): 840-844
张丹丹, 石士考, 罗鸣, 刘行仁, 周济. Pr3+激活的CaMoO4红色荧光粉的发光性质[J]. 发光学报, 2012,33(8): 840-844 DOI： 10.3788/fgxb20123308.0840.

ZHANG Dan-dan, SHI Shi-kao, LUO Ming, LIU Xing-ren, ZHOU Ji. Luminescent Properties of Pr3+-activated CaMoO4 Red Phosphors[J]. Chinese Journal of Luminescence, 2012,33(8): 840-844 DOI： 10.3788/fgxb20123308.0840.

摘要

采用高温固相法制备了稀土Pr

激活的Ca

MoO

(0.005 ≤

≤ 0.02) 系列红色荧光粉。荧光光谱表明:在453 nm激发下

样品产生了红光发射

其中对应于Pr

的特征跃迁

→

位于654 nm的红色发射峰最强。分析了Pr

的掺杂摩尔分数

对样品发光强度的影响

确定Pr

的最佳掺杂摩尔分数为0.01。为进一步改善样品的发光效率

在样品制备过程中分别采用了两种电荷补偿方式:用1个Pr

和1个

(

=Li

Na)离子取代2个Ca

离子或用2个Pr

离子取代3个Ca

离子。实验结果表明:采用两种电荷补偿方法后

样品的红色发光强度均明显增强

尤其是加入Li

后的Ca

0.98

0.01

MoO

样品的发光强度达到了未补偿样品的3.17倍。

Abstract

Red-light-emitting phosphors of Pr

activated Ca

MoO

were synthesized by high temperature solid state reaction. The luminescence spectra of samples indicate that under the excitation of 453 nm

all samples produce red emission peak at 654 nm corresponding to the characteristic transition of Pr

(

→

). The influence of Pr

doping mole fraction (

) on the luminescent intensity of samples was analyzed. The optimum doping mole fraction of Pr

was

=0.01. In order to further improve the luminescent efficiency

two charge compensation approaches were applied: (1) two Ca

ions were replaced by one Pr

ion and one

(

=Li

Na) ion and (2) three Ca

ions were replaced by two Pr

ions. It is found that both charge compensation approaches can obviously improve the red luminescent intensity. In particular the relative emission intensity of Ca

0.98

0.01

MoO

reached more than 3.17-fold as compared with that of the sample without the charge compensation.

关键词

Keywords

references

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