Spectroscopic and structural properties of Na3RE(PO4)2:Yb orthophosphates synthesised by hydrothermal method (RE = Y, Gd)

被引：23

作者：

Godlewska, P. ^{[1
]}

Matraszek, A. ^{[1
]}

Macalik, L. ^{[2
]}

Hermanowicz, K. ^{[2
]}

Ptak, M. ^{[2
]}

Tomaszewski, P. E. ^{[2
]}

Hanuza, J. ^{[1
,2
]}

Szczygiel, I. ^{[1
]}

机构：

[1] Wroclaw Univ Econ, Fac Chem & Food Technol, PL-53345 Wroclaw, Poland

[2] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 628卷

关键词：

Na3RE(PO4)(2) phosphates; Hydrothermal synthesis; X-ray diffraction; Structural transformation; IR and Raman; Optical properties; X-RAY-DIFFRACTION; CRYSTAL-STRUCTURE; DOUBLE PHOSPHATES; DOUBLE SODIUM; NEODYMIUM; METAPHOSPHATE; ULTRAVIOLET; YTTERBIUM; GLASSES; PHASE;

D O I：

10.1016/j.jallcom.2014.11.194

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Na3RE(PO4)(2) orthophosphates, where RE = Y and Gd, doped with Yb3+ ions were synthesised by hydrothermal method and characterised by X-ray diffraction, microscopic, IR and Raman techniques. The emission, excitation spectra were recorded at room temperature and fluorescence decay time was determined. As-synthesised samples crystallise in a trigonal modification and during calcination at 500 degrees C they transform to a monoclinic or orthorhombic symmetry (for yttrium and gadolinium compounds, respectively). Finally, the samples calcined at 700 degrees C do not reveal the trigonal symmetry. The morphology of particles for all samples is similar and resembles rice grains. All the obtained for the studied orthophosphates data were compared to those previously reported for the same compounds synthesised by Pechini method. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：199 / 207

页数：9

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