Effect of Encaged-anion Groups on Infrared Luminescence of C12A7: Nd3+ Powders

CHEN Xue-yan; YANG Jian; ZHANG Meng; ZHU Han-cheng; YAN Duan-ting; LIU Chun-guang; XU Chan

doi:10.3788/fgxb20153611.1240

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Effect of Encaged-anion Groups on Infrared Luminescence of C12A7: Nd³⁺ Powders

更新时间：2020-08-12

- Effect of Encaged-anion Groups on Infrared Luminescence of C12A7: Nd³⁺ Powders
- Chinese Journal of Luminescence Vol. 36, Issue 11, Pages: 1240-1245(2015)
- 作者机构：
  
  东北师范大学物理学院,吉林长春,130021
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153611.1240
  CLC： O482.31
- Received：04 August 2015，
  
  Revised：11 September 2015，
  
  Published：10 November 2015
- 稿件说明：
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陈雪岩, 杨健, 张猛等. 笼中阴离子基团对Nd3+掺杂C12A7粉体红外发光的影响[J]. 发光学报, 2015,36(11): 1240-1245

CHEN Xue-yan, YANG Jian, ZHANG Meng etc. Effect of Encaged-anion Groups on Infrared Luminescence of C12A7: Nd3+ Powders[J]. Chinese Journal of Luminescence, 2015,36(11): 1240-1245
陈雪岩, 杨健, 张猛等. 笼中阴离子基团对Nd3+掺杂C12A7粉体红外发光的影响[J]. 发光学报, 2015,36(11): 1240-1245 DOI： 10.3788/fgxb20153611.1240.

CHEN Xue-yan, YANG Jian, ZHANG Meng etc. Effect of Encaged-anion Groups on Infrared Luminescence of C12A7: Nd3+ Powders[J]. Chinese Journal of Luminescence, 2015,36(11): 1240-1245 DOI： 10.3788/fgxb20153611.1240.

摘要

采用自蔓延燃烧法制备了不同 Nd

掺杂浓度的具有笼状结构的12CaO7Al

(C12A7 :

%Nd

)粉体材料.在808 nm波长的激发下

观测到了位于887

1 069

1 340 nm附近的3个近红外发射峰

分别归属于Nd

的

3/2

(

13)跃迁.Nd

掺杂摩尔分数达到0.5%时

红外光发射较强

且没有观察到杂质相.在H

气氛下对样品进行1 300 ℃热处理之后

笼中OH

和H

浓度增加

笼子发生畸变

晶粒尺寸变大

样品的结晶性变好.通过在空气下热处理

减少了高能振动基团OH

的数目

进一步增强了近红外光发射.变温光致发光谱测量结果表明

C12A7 :

%Nd

样品具有较高的热激活能

在红外激光器上有潜在的应用前景.

Abstract

C12A7 :

%Nd

powders with unique nanocaged structure were synthesized by self-propagating combustion method. Upon 808 nm excitation

we can observe three peaks at 887

1 069

1 340 nm attributed to the transition

3/2

(

13) of Nd

respectively. When Nd

mole fraction is 0.5%

the intense infrared luminescence can be obtained and no impurity phase is observed. After the annealing in H

ambient

the encaged OH

and H

concentrations and the grain size of C12A7 increase and the cages are distorted. The improvement of the crystallinity and the decrease of the non-radiative transition rate can enhance the near-infrared luminescence after the annealing in air. Based on the temperature-dependent emission spectra

the high thermal activation energies are obtained

indicating that C12A7 :

%Nd

have potential applications in infrared laser.

关键词

Keywords

references

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