The influences of Sr or Ba substitution on the structure and luminescence properties for Ca2.955Si2O7: 0.045Eu2+ phosphor

被引：1

作者：

Lu Fang ^{[1
]}

Zhang Xing-Hua ^{[1
]}

Lu Zun-Ming ^{[1
]}

Xu Xue-Wen ^{[1
]}

Tang Cheng-Chun ^{[1
]}

机构：

[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China

来源：

ACTA PHYSICA SINICA | 2012年 / 61卷 / 14期

基金：

中国国家自然科学基金;

关键词：

calcium silicate phosphor; solid-state reaction method; photoluminescence; blue shift; GREEN; EU2+; DY3+; CA;

D O I：

10.7498/aps.61.144209

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A series of Ca2.955-xSi2O7: 0.045Eu(2+) (M = Sr, Ba, x = 0.1-0.5) phosphors is prepared by solid-state reaction method. The influences of Sr or Ba with larger radius substitution on the structure and luminescence properties for Ca2.955Si2O7:0.045Eu(2+) phosphor are investigated. The XRD results show that a small quantity of Sr or Ba substitution of Ca does not change the structure of Ca3Si2O7 host which has a monoclinic crystal structure. Before the substitution, the emission peak is at about 574 nm. If the Ca2+ ions are substituted by Sr2+ or Ba2+ ions, the emission peak is blue shifted when the Sr or Ba concentration is 0.5. In addition, for the same doping contents of Sr and Ba, the Ba doped phosphors have stronger emission intensity.

引用

页数：5

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