Luminescence performance of CaYGaO4:Bi3+, CaYGaO4:Mn4+ and CaYGaO4:Bi3+/Mn4+ phosphors

被引：13
|
作者：
Chen, Yuanyuan [1 ]
Zhang, Honghui [1 ]
Liu, Kuili [1 ]
Zhu, Xinying [1 ]
Yuan, Huanli [1 ]
机构：
[1] Zhoukou Normal Univ, Sch Phys & Telecommun Engn, Zhoukou 466001, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2022年 / 918卷
关键词：
CaYGaO4; Bi3+/Mn4+ doping; Energy transfer; ENERGY-TRANSFER; PERSISTENT LUMINESCENCE; RED PHOSPHOR; BI3+; PHOTOEMISSION;
D O I：
10.1016/j.jallcom.2022.165759
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
CaYGaO4:Bi3+, CaYGaO4:Mn4+ and CaYGaO4:Bi3+/Mn4+ phosphors were synthesized by high temperature reactions. Their crystalline phase was investigated by XRD measurements. And their composition was revealed by the EDS spectrum and elemental mapping images. The results demonstrate the successful synthesis of CaYGaO4 based phosphors. Their luminescence performance was investigated by fluorescence spectrophotometer. Upon the excitation, the CaYGaO4:Bi3+ and CaYGaO4:Mn4+ phosphors emit cyan and deep-red emission, respectively. For CaYGaO4:Bi3+/Mn4+ phosphors, Mn4+ emission is enhanced efficiently due to energy transfer from Bi3+ to Mn4+. (C) 2022 Published by Elsevier B.V.
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页数：5
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