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Luminescence Properties of Ce/Tb/Sm Co-Doped Tellurite Glass for White Leds Application
被引:7
|作者:
Tran Thi Hong
[1
]
Pham Duc Huyen Yen
[2
]
Vu Xuan Quang
[3
]
Phan Tien Dung
[4
]
机构:
[1] Da Nang Univ Educ, Danang, Vietnam
[2] Vietnam Natl Univ, Hanoi, Vietnam
[3] Duy Tan Univ, Danang, Vietnam
[4] Vietnam Acad Sci & Technol, Inst Mat Sci, Hanoi, Vietnam
关键词:
Tellurite glass;
rare earth;
energy transfer;
luminescence;
LIGHT-EMITTING-DIODES;
GREEN TUNABLE LUMINESCENCE;
ENERGY-TRANSFER;
OPTICAL-PROPERTIES;
ULTRAVIOLET-LIGHT;
PHOSPHOR;
TB3+;
UV;
CERAMICS;
EMISSION;
D O I:
10.2320/matertrans.MA201509
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
In this work, the Ce/Tb/Sm doped glasses with the composition of TeO2-B2O3-ZnO-Na2O were synthesized by melt quenching process. The photoluminescence properties of glasses doped with Ce3+, Tb3+ and Sm3+ single, doubly and triply doped TeO2-B2O3-ZnO-Na2O (TBZN) were studied by mean of emission and excitation spectra. There was an overlap between Ce3+ emission and Tb3+, Sm3+ absorption in the wavelength range of 350-500 nm. Therefore, it was expected that an efficient energy transfer occurred from Ce3+ to Tb3+ and Ce3+ to Sm3+ ions. When excited by ultraviolet wavelengths the co-doped glasses emit a combination of blue, green and red orange forming white light.
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页码:1419 / 1421
页数:3
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