SrZrO3 powders obtained by chemical method:: Synthesis, characterization and optical absorption behaviour

被引：46

作者：

Cavalcante, L. S. ^{[1
]}

Simoes, A. Z. ^{[2
]}

Sczancoski, J. C. ^{[1
]}

Longo, V. M. ^{[1
]}

Erlo, R. ^{[1
]}

Escote, M. T. ^{[3
]}

Longo, E. ^{[2
]}

Varela, J. A. ^{[2
]}

机构：

[1] Univ Fed Sao Carlos, Dept Quim, Lab Interdisciplinar Eletroquim & Ceram, BR-13565905 Sao Carlos, SP, Brazil

[2] Univ Estadual Paulista, Inst Quim, Dept Fisicoquim, Lab Interdisciplinar Ceram, BR-14801907 Araraquara, SP, Brazil

[3] Univ Fed ABC, Ctr Engn Modelagem & Ciencias Sociais Aplicadas, BR-09090400 Santo Andre, SP, Brazil

来源：

SOLID STATE SCIENCES | 2007年 / 9卷 / 11期

基金：

巴西圣保罗研究基金会;

关键词：

SrZrO3; polymeric precursor method; Rietveld refinement; crystal structure; optical behaviour;

D O I：

10.1016/j.solidstatesciences.2007.07.019

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Strontium zirconate (SrZrO3) powders have been synthesized by the polymeric precursor method after heat treatment at different temperatures for 2 h in oxygen atmosphere. The decomposition of precursor powder was followed by thermogravimetric analysis, X-ray diffraction (XRD) and Fourier transform Raman (FT-Raman). The UV-vis absorption spectroscopy measurements suggested the presence of intermediary energy levels in the band gap of structurally disordered powders. XRD, Rietveld refinement and FT-Raman revealed that the powders are free of secondary phases and crystallizes in the orthorhombic structure. (C) 2007 Elsevier Masson SAS. All rights reserved.

引用

页码：1020 / 1027

页数：8

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