Optical and structural characterisation of pure and Pr3+ doped LaPO4 and CePO4 nanocrystals

被引：45

作者：

Macalik, L. ^{[1
]}

Tomaszewski, P. E. ^{[1
]}

Matraszek, A. ^{[2
]}

Szczygiel, I. ^{[2
]}

Solarz, P. ^{[1
]}

Godlewska, P. ^{[3
]}

Sobczyk, M. ^{[4
]}

Hanuza, J. ^{[1
,3
]}

机构：

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

[2] Wroclaw Univ Econ, Dept Inorgan Chem, Fac Engn & Econ, PL-53345 Wroclaw, Poland

[3] Wroclaw Univ Econ, Dept Bioorgan Chem, Fac Engn & Econ, PL-53345 Wroclaw, Poland

[4] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 27期

关键词：

Rare earth orthophosphates; Nanostructured materials; Hydrothermal synthesis; Optical properties; LAPO4-CE; TB PHOSPHOR PARTICLES; SCINTILLATION PROPERTIES; HYDROTHERMAL SYNTHESIS; CRYSTAL-CHEMISTRY; PHOTOLUMINESCENCE; LUMINESCENCE; STABILITY; RE; CE;

D O I：

10.1016/j.jallcom.2011.04.077

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：

The rod- and stick-shaped nanocrystalline cerium and lanthanum orthophosphates, pure and Pr3+ doped, have been synthesised by the hydrothermal method in acidic (pH 1) or alkaline (pH 11) environment. Subsequent calcination of as-obtained powders at different temperatures, 500 and 900 degrees C, led to the formation of hexagonal and monoclinic phases, respectively. The hexagonal phase at room temperature has been identified as hydrated orthophosphate with zeolite water inside the channels of the structure. The monoclinic phase is free of water. The average grain size is about 12-30 nm depending on the calcination temperature and preparation conditions. The structural, morphological and optical (vibrational and luminescent) properties have been characterised and their changes due to the temperature and different acidity in the starting materials have been studied. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：7458 / 7465

页数：8

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