Luminescence properties of SrB4O7:Sm2+ for light conversion agent

被引：21

作者：

Sun Jiayue ^{[1
]}

Zhu Jicheng ^{[1
]}

Liu Xiaotang ^{[2
]}

Du Haiyan ^{[1
]}

机构：

[1] Beijing Technol & Business Univ, Sch Sci, Beijing 100048, Peoples R China

[2] S China Agr Univ, Coll Sci, Guangzhou 510642, Guangdong, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2012年 / 30卷 / 11期

关键词：

Sm2+; photoluminescence; light conversion agent; rare earths; ENERGY-TRANSFER;

D O I：

10.1016/S1002-0721(12)60183-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A deep red-emitting SrB4O7:Sm2+ phosphor for light conversion agent was synthesized by the conventional solid-state reaction. X-ray powder diffraction (XRD) analysis confirmed the phase formation of SrB4O7:Sm2+ materials. Results of luminescence properties showed that the phosphor could be efficiently excited by the UV-vis light region from 250-500 nm, and it exhibited deep red (685 nm) emission corresponding to D-5(0) -> F-7(0) transition of Sm2+. The critical quenching concentration of Sm2+ in SrB4O7:Sm2+ phosphor was about 0.05, and the corresponding concentration quenching mechanism was verified to be the dipole-dipole interaction according to the Dexter's theory. The decay times had few alterations with different concentrations in SrB4O7:xSm(2+) phosphor.

引用

页码：1084 / 1087

页数：4

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