Citation: DENG Yuefeng, SONG Yanhua, CHEN Ji, LIU Chuanying, LI Deqian, LIU Yu, LI Hailian. Influence of Impurity in Lu₂O₃ on Spectral Properties of Lu₂SiO₅:Ce Polycrystalline Powders[J]. Chinese Journal of Applied Chemistry, ;2018, 35(4): 457-461. doi: 10.11944/j.issn.1000-0518.2018.04.170415 shu

Influence of Impurity in Lu₂O₃ on Spectral Properties of Lu₂SiO₅:Ce Polycrystalline Powders

DENG Yuefeng ^a,b ,
SONG Yanhua ^a ,
CHEN Ji ^a,, ,
LIU Chuanying ^a,b ,
LI Deqian ^a ,
LIU Yu ^a ,
LI Hailian ^a

a.
State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Acdemy of Sciences, Changchun 130022, China
b.
University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: CHEN Ji, jchen@ciac.ac.cn
Received Date: 17 November 2017
Revised Date: 15 December 2018
Accepted Date: 17 January 2018

Fund Project: Supported by the Science and Technology Service Network Initiative for Regional Key Project of CAS

Figures(6)

The impurity elements in lutetium oxide have a great influence on the separation and preparation process, production cost and performance of lutetium based silicate scintillating crystals. The research about the effect of impurities on the crystal properties is limited and needs to be further improved. In this paper, the impurity elements(Yb³⁺ and Ca²⁺ are the key impure elements in Lu₂O₃ separation process) co-doped Lu₂SiO₅:Ce polycrystalline powders were prepared by the solid-state method. The effects of Yb³⁺ or Ca²⁺ content on the spectral properties of polycrystalline powders were studied. The results show that co-doping of Yb³⁺ or Ca²⁺ does not change the shape and position of the emission spectra. With the increase of the amount of doping impurities, the spectral intensity and fluorescence lifetime decrease gradually.
- lutetium oxide,
- cerium doped lutetium oxyorthosilicate,
- impurity elements,
- polycrystalline powder,
- spectral properties
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Influence of Impurity in Lu₂O₃ on Spectral Properties of Lu₂SiO₅:Ce Polycrystalline Powders