Relationship between Crystal Shape, Photoluminescence, and Local Structure in SrTiO3 Synthesized by Microwave-Assisted Hydrothermal Method
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Otros documentos de la autoría: Da Silva, Luis F.; Avansi, Waldir; Moreira, Mario Lucio; Mesquita, Alexandre; Maia, Lauro; Andres, Juan; Longo, Elson; Mastelaro, Valmor Roberto
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Título
Relationship between Crystal Shape, Photoluminescence, and Local Structure in SrTiO3 Synthesized by Microwave-Assisted Hydrothermal MethodAutoría
Fecha de publicación
2012Editor
Hindawi Publishing CorporationISSN
1687-4110Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://www.hindawi.com/journals/jnm/2012/890397/Versión
info:eu-repo/semantics/publishedVersionResumen
This paper describes the effect of using different titanium precursors on the synthesis and physical properties of SrTiO3 powders obtained by microwave-assisted hydrothermal method. X-ray diffraction measurements, ... [+]
This paper describes the effect of using different titanium precursors on the synthesis and physical properties of SrTiO3 powders obtained by microwave-assisted hydrothermal method. X-ray diffraction measurements, X-ray absorption near-edge structure (XANES) spectroscopy, field emission scanning electron microscopy (FE-SEM), and high-resolution transmission electron microscopy (HRTEM) were carried out to investigate the structural and optical properties of the SrTiO3 spherical and cubelike-shaped particles. The appropriate choice of the titanium precursor allowed the control of morphological and photoluminescence (PL) properties of SrTiO3 compound. The PL emission was more intense in SrTiO3 samples composed of spherelike particles. This behavior was attributed to the existence of a lower amount of defects due to the uniformity of the spherical particles. [-]
Publicado en
Journal of Nanomaterials, v. 2012Derechos de acceso
Copyright © 2012 Luís F. da Silva et al.
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
http://rightsstatements.org/vocab/InC/1.0/
info:eu-repo/semantics/openAccess
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