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

页码：73 / 75

页数：3

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