Luminescence characteristics of NaYGeO4:Bi3+/Tb3+/Eu3+ phosphors

被引：12
作者：
Wang, Erlei [1 ]
Feng, Kun [2 ]
Li, Jia [3 ]
Zhou, Xiaodong [1 ]
Sun, Xianke [2 ]
机构：
[1] ZhouKou Normal Univ, Sch Mech & Elect Engn, Zhoukou 466001, Peoples R China
[2] ZhouKou Normal Univ, Sch Phys & Telecommun Engn, Zhoukou 466001, Peoples R China
[3] ZhouKou Normal Univ, Hosp Affiliated, Zhoukou 466001, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2022年 / 250卷
关键词：
NaYGeO4; Bi3+/Tb3+/Eu(3+)doping; Energy transfer; Tunable luminescence; ENERGY-TRANSFER; PHOTOLUMINESCENCE; EMISSION;
D O I：
10.1016/j.jlumin.2022.119108
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A series of Bi3+/Tb3+/Eu3+ doped NaYGeO4 phosphors were synthesized via the solid state sintering at 1300 ? for 3 h. The phase and luminescence performance of the synthesized phosphors were investigated. The Bi3+, Tb3+ and Eu3+ single doped NaYGeO4 phosphors show the prominent blue, green and red emission, respectively. And the emission shows obvious dependence on doping concentration and excitation wavelength. The Bi3+ -> Tb3+/ Eu3+ energy transfers were confirmed by the luminescence characteristics of the Bi3+/Tb3+/Eu3+/Eu3+ and Bi3+/ Tb3+/Eu(3+)doped NaYGeO(4 )phosphors. The Bi3+ -> Tb3+ energy transfer in the NaYGeO4:Bi3+/Tb3+ phosphors leads to the tunable emission from the blue to cyan-green light region and the Bi3+ -> Eu3+ energy transfer in the NaYGeO4:Bi3+/Eu3+ phosphors leads to the tunable emission from the blue to purple-red light region. But in the NaYGeO4:Bi3+/Tb3+/Eu3+ phosphors, the Bi3+ -> Tb3+/Eu3+ energy transfers lead to the tunable emission from the blue to yellow light region through the white light region. From the luminescence characteristics of the Bi3+/ Tb3+/Eu(3+)doped NaYGeO4 phosphors, the energy transfer mechanisms were speculated.
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页数：7
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