Crystal structure of Na2MMgP2O8 (M: Ba, Sr, Ca) orthophosphates and their luminescence properties activated by Eu2+; analogous structural behaviors of glaserite-type phosphates and silicates

被引：31

作者：

Yonesaki, Yoshinori ^{[1
]}

Matsuda, Chihiro ^{[1
]}

机构：

[1] Univ Yamanashi, Interdisciplinary Grad Sch Med & Engn, Kofu, Yamanashi 4008511, Japan

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2011年 / 184卷 / 12期

关键词：

Phosphor; Structure analysis; Phosphate; Glaserite; Blue emission; BLUE PHOSPHOR; BA3MGSI2O8-EU2+; PHOTOLUMINESCENCE; NA2CAMG(PO4)(2);

D O I：

10.1016/j.jssc.2011.10.011

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Rietveld refinements of X-ray powder diffraction data and vibrational spectroscopy have confirmed the crystal structure of Na2MMgP2O8 (M: Ba, Sr, Ca) prepared by a standard solid state reaction. They have glaserite-type layered structure. Na2MMgP2O8 has a trigonal P (3) over bar form for M=Ba, and monoclinic P2(1)/c forms for M=Sr and Ca. The observed structural transition is analogous to the corresponding layered orthosilicate M3MgSi2O8. Eu2+-doped Na2MMgP2O8 exhibits an intense blue to violet emission under ultraviolet excitation, based on 5d-4f electron transition of Eu2+ ions. The emission character is very sensitive to the structural transition induced by M2+ and the subsequent site symmetry changes. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：3247 / 3252

页数：6

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