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An improved method for preparation of SrTiO3 nanoparticles

da Silva, LF ; Maia, LJQ ; Bernardi, MIB ; Andres, JA ; Mastelaro, V R

Materials chemistry and physics, 2011-01, Vol.125 (1-2), p.168-173 [Periódico revisado por pares]

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Título:
An improved method for preparation of SrTiO3 nanoparticles
Autor: da Silva, LF ; Maia, LJQ ; Bernardi, MIB ; Andres, JA ; Mastelaro, V R
Assuntos: Atmospheres ; Field emission ; Iron ; Nanocrystals ; Nanoparticles ; Photoluminescence ; Scanning electron microscopy ; Strontium titanates
É parte de: Materials chemistry and physics, 2011-01, Vol.125 (1-2), p.168-173
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: SrTiO3 nanoparticles were synthesized for the first time via a modified polymeric precursor method. The samples were characterized by thermogravimetry, X-ray diffraction (XRD), BET surface area, micro-Raman spectroscopy, field emission scanning and transmission electron microscopy (FE-SEM and FE-STEM), high-resolution transmission electron microscopy (HRTEM) and photoluminescence measurements. It is found that calcination atmosphere (air, nitrogen and oxygen) plays an important role of both crystal size and photolumiscence behavior of the SrTiO3 nanocrystallites. Results show that the powders obtained in nitrogen/oxygen atmosphere possess controllable particles size of approximately 11nm presenting the highest photoluminescence emission.
Idioma: Inglês

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