Luminescence properties of Eu3+ activated Y2O3 red phosphor with incorporation of Ga3+ and Bi3+ trace hertero-cations in the Y2O3 lattice

被引：12
|
作者：
Yousif, A. [2 ]
Abbas, Babiker H. [1 ,2 ]
Kumar, Vijay [1 ,3 ]
Pandey, Anurag [1 ]
Swart, H. C. [1 ]
机构：
[1] Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa
[2] Univ Khartoum, Fac Educ, Dept Phys, Omdurman 11115, Sudan
[3] Chandigarh Univ, Dept Appl Phys, Mohali, Punjab, India
来源：
VACUUM | 2018年 / 155卷
基金：
新加坡国家研究基金会;
关键词：
Y2O3:Eu3+/Ga3+/Bi3+ ions; Photoluminescence; Cathodeluminescence; EMITTING PHOSPHOR; PHOTOLUMINESCENCE; EMISSION;
D O I：
10.1016/j.vacuum.2018.05.054
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The luminescence characteristics of Eu3+ doped Y2O3 in the presence and absence of Bi3+/Ga3+ trace ions prepared by the sol-gel combustion method were investigated. The results revealed that, the Bi3+ and Ga3+ ions have a significant influence on the excitation position and emission bands intensity of Eu3+ doped Y2O3. The cathodoluminescence (CL) intensity of the Y2O3:Eu3+ incorporated with Bi3+/Ga3+ ions has been considerably enhanced (five times), compared to the CL intensity of the unincorporated Y2O3:Eu3+ samples. This phenomenon was attributed to the energy exchange in the excitation bands of the Bi3+ and Eu3+ ions.
引用
收藏
页码：73 / 75
页数：3
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