Luminescent properties of rare-earth (Eu3+ Eu2+, and Ce3+) doped apatitic oxyphosphosilicates

被引：27

作者：

El Ouenzerfi, R ^{[1
]}

Goutaudier, C ^{[1
]}

Cohen-Adad, MT ^{[1
]}

Panczer, G ^{[1
]}

Boulon, G ^{[1
]}

机构：

[1] Univ Lyon 1, UMR CNRS 5620, Lab Physicochim Mat Luminescents, F-69622 Villeurbanne, France

来源：

JOURNAL OF LUMINESCENCE | 2003年 / 102卷

关键词：

apatites; phosphosilicates; luminescent properties; europium; cerium;

D O I：

10.1016/S0022-2313(02)00580-X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The luminescence of (Eu3+, Ce3+ and Eu2+) doped apatitic phosphosilicates is studied at either 300 and 77K. Samples of Ca5La5(SiO4)(3)(PO4)(3)O-2:Ln(2%) where Ln = Eu3+, Ce3+ and Eu2+, were synthesized by solid-state reaction at high temperature (1400degreesC) and then identified by the X-ray diffraction method. The rare-earth cations were found to occupy two cationic sites labeled M(I) and M(II) with a local symmetry C-3 and C-s, respectively. In comparison with Ce3+ or Eu2+-doped apatitic phosphates, the bands observed in the emission spectra of Ca5La5(SiO4)(3)(PO4)(3)O-2:Ce3+ (2%) and Ca5La5(SiO4)(3)(PO4)(3)O-2:Eu2+(2%) were found to be shifted to higher wavelength. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：426 / 433

页数：8

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