Luminescent properties and energy transfer of color-tunable Sr3Y2(SiO3)6:Ce3+,Tb3+ phosphors

被引：15

作者：

Li Naixu ^{[1
]}

Li Shuqiang ^{[1
]}

Wang Yueming ^{[1
]}

Zhou Bingyao ^{[1
]}

Sun Yueming ^{[1
]}

Zhou Jiancheng ^{[1
]}

机构：

[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2014年 / 32卷 / 10期

基金：

中国国家自然科学基金;

关键词：

luminescence; phosphors; energy transfer; rare earths; SOL-GEL SYNTHESIS; PHOTOLUMINESCENT PROPERTIES; TB3+; EU; CE; TRANSITION; FACILE; SMART; SM3+; RE;

D O I：

10.1016/S1002-0721(14)60165-4

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Phosphors with controlled emission spectra are of great interest due to their application for white light emitting diodes. Herein, a new class of Sr3Y2(SiO3)(6):Ce3+,Tb3+ phosphors were synthesized by a facile sol-gel combustion method. The phase structure, morphology, and luminescence properties of the phosphors were characterized by using powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and photoluminescence excitation and emission spectra, respectively. The results on luminescence properties indicated that co-doped Ce3+ ions served as UV-light sensitizers with excitation energy partially transferred to Tb3+ ions, leading to green emission from Tb3+. Particularly, the corresponding emitting colors of the phosphors could be well-tuned from deep blue (0.16, 0.05) to green region (0.25, 0.45) by adjusting the molar ratio of Ce3+/Tb3+.

引用

页码：933 / 937

页数：5

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