Preparation of Co-doped Ce,Pr: GAGG Powder by Chemical Co-precipitation Method and Luminescence Properties

SUN Li-na; ZHAO Mu-sen; TAN Jun; DONG Zai-zheng; BA De-chun

doi:10.3788/fgxb20194002.0137

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Preparation of Co-doped Ce,Pr: GAGG Powder by Chemical Co-precipitation Method and Luminescence Properties

Synthesis and Properties of Materials | 更新时间：2020-08-12

- Preparation of Co-doped Ce,Pr: GAGG Powder by Chemical Co-precipitation Method and Luminescence Properties
- Chinese Journal of Luminescence Vol. 40, Issue 2, Pages: 137-142(2019)
- 作者机构：
  
  1. 东北大学机械工程与自动化学院, 辽宁沈阳 110819
  2. 东北大学新材料技术研究院,辽宁沈阳,110819
- 作者简介：
- 基金信息：
  
  Supported by Science and Technology Plan Project of Shenyang(F17-231-1-01)
- DOI：10.3788/fgxb20194002.0137
  CLC： TQ174
- Received：18 April 2018，
  
  Revised：05 June 2018，
  
  Published Online：13 June 2018，
  
  Published：05 February 2019
- 稿件说明：
移动端阅览
孙丽娜, 赵木森, 谭俊等. 共沉淀法制备Ce、Pr共掺杂GAGG粉体及发光特性[J]. 发光学报, 2019,40(2): 137-142

SUN Li-na, ZHAO Mu-sen, TAN Jun etc. Preparation of Co-doped Ce,Pr: GAGG Powder by Chemical Co-precipitation Method and Luminescence Properties[J]. Chinese Journal of Luminescence, 2019,40(2): 137-142
孙丽娜, 赵木森, 谭俊等. 共沉淀法制备Ce、Pr共掺杂GAGG粉体及发光特性[J]. 发光学报, 2019,40(2): 137-142 DOI： 10.3788/fgxb20194002.0137.

SUN Li-na, ZHAO Mu-sen, TAN Jun etc. Preparation of Co-doped Ce,Pr: GAGG Powder by Chemical Co-precipitation Method and Luminescence Properties[J]. Chinese Journal of Luminescence, 2019,40(2): 137-142 DOI： 10.3788/fgxb20194002.0137.

摘要

用化学共沉淀法一次煅烧工艺制备Ce，Pr:GAGG粉体，利用XRD、SEM、荧光光谱仪等对样品表面形貌及发光性能进行表征，研究煅烧温度、沉淀剂引入草酸根对粉体发光性能的影响。结果表明，前驱体经950℃煅烧3 h后全部转变为GAGG相，Pr

、Ce

共掺未改变基质的物相结构；沉淀剂引入草酸铵后，粉体发射光谱积分强度由333 573 a.u上升至420 894 a.u，沉淀剂引入草酸根能提高粉体的发光性能。荧光寿命测试表明，在Ce:GAGG中掺入Pr

可使Ce

的荧光寿命降低，衰减时间为35.43 ns。

Abstract

The Ce

Pr:GAGG powders were prepared by chemical co-precipitation and one step calcinations. The surface morphologies and luminescence properties of the samples were analyzed by XRD

SEM and fluorescence spectrometer. The effects of calcination temperature and the introduction of oxalate into precipitant on the luminescent properties of powders were investigated. The results showed that the precursor transformed into GAGG phase after being calcined at 950℃ for 3 h.The co-doping of Pr

and Ce

did not change the phase structure of the matrix. After the precipitation agent was introduced into ammonium oxalate

the emission spectrum intensity of the powder increased from 333 573 a.u to 420 894 a.u

precipitation agent introduced oxalate can improve powder luminescence performance. The fluorescence lifetime test showed that the incorporation of Pr

in Ce:GAGG can reduce the fluorescence lifetime of Ce

and the decay time is 35.43 ns.

关键词

Keywords

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