PhotoluminescencepropertiesofTb3+andCe3+co-dopedSr2MgSi2O7phosphorsforsolid-statelighting

被引：0

作者：

于泓 ^{[1
]}

陈金磊 ^{[2
]}

蒲勇 ^{[1
]}

张铁军 ^{[1
]}

甘树才 ^{[2
]}

机构：

[1] Research Institute for New Materials Technology, Chongqing University of Arts and Sciences

[2] College of Chemistry, Jilin University

来源：

Journal of Rare Earths | 2015年 / 33卷 / 04期

关键词：

Sr2MgSi2O7:Tb3+; Ce3+; photoluminescence; phosphor; energy transfer; rare earths;

D O I：

暂无

中图分类号：

TQ422 [光化学物质];

学科分类号：

0817 ;

摘要：

Sr2Mg Si2O7:Tb3+,Ce3+ phosphors were synthesized by solid-state reaction and placed in a muffle furnace in a reducing atmosphere at 1300 oC for 3 h. Photoluminescence properties and energy transfer were investigated. The Ce3+/Tb3+ energy transfer was thoroughly investigated by their emission/excitation spectra and photoluminescence lifetime, there was shortened lifetime of Ce3+(from 51.31 to 50.06 ns) which could support evidence of energy transfer from Ce3+ to Tb3+ in the host. The varied emitted color of Sr1.97–yMg Si2O7:0.03Tb3+,y Ce3+ phosphors could be achieved by altering the concentration of Ce3+, the chromaticity coordinates(x, y) varied from(0.225, 0.376) to(0.172, 0.231). In Sr1.96 Mg Si2O7:0.03Tb3+,0.01 Ce3+ phosphors, the results indicated that Sr2 Mg Si2O7:Tb3+,Ce3+ might be useful as tunable phosphors for ultraviolet white-light-emitting diodes.

引用

页码：366 / 370

页数：5

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