Tunableluminescence,energytransferandexcellentthermalstabilityofSrMg2（PO4）2:Ce3+,Tb3+phosphorsforLEDs

被引：4

作者：

Wanxin Mi ^{[1
]}

Jun Zheng ^{[1
]}

Peng Qiao ^{[2
]}

Lili Cao ^{[1
]}

Siqi Chu ^{[1
]}

Hongping Ma ^{[1
]}

机构：

[1] College of Machinery and Energy Engineering,Zhejiang University of Science and Technology

[2] Zhejiang Academy of Special Equipment Science

来源：

Journal of Rare Earths | 2021年 / 39卷 / 01期

关键词：

D O I：

暂无

中图分类号：

TQ422 [光化学物质];

学科分类号：

0817 ;

摘要：

A series of novel SrMg2（PO4）2:Ce3+,Tb3+(SMP:Ce3+,Tb3+) phosphors with tunable emission spectra were produced via high temperature solid phase method.XRD,fluorescence spectrum and fluorescence lifetime for SMP:Ce3+,Tb3+were studied in detail.Under the excitation at 308 nm,SMP:Ce3+,Tb3+ samples can emit high efficiency tunable blue-green light by controlling the proportion of dopant concentration.Through the spectral overlap and the regular change of fluorescence lifetime,it is proved that there is a significant energy transfer between Ce3+ and Tb3+ in SMP matrix and the energy transfer mechanism is determined to be an electric dipole-dipole interaction with energy transmission efficiency of 55%.In additional,Commission International de L'Eclairage（CIE） color coordinates and thermal stability were studied.All above findings suggest that SMP:Ce3+,Tb3+can be regarded as the potential bluish green phosphor for LED applications.

引用

页码：19 / 25

页数：7

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