Influence of titanium precursor on photoluminescent emission of micro-cube-shaped CaTiO3
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Data
2015-09-01
Autores
Mazzo, Tatiana Martelli
Nascimento Libanori, Gabriela Santilli do
Moreira, Mario Lucio
Avansi, Waldir
Mastelaro, Valmor Roberto
Varela, Jose Arana [UNESP]
Longo, Elson [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
For this research, we studied the influence of titanium tetrachloride (TC) and titanium tetraisopropoxide (TTP) precursors on CaTiO3 (CTO) synthesis by employing a microwave-assisted hydrothermal (MAH) method regarding their respective short-, medium- and long-range features to determine if the use of different titanium precursors enhances the structural evolution of the material. The growth mechanism for the formation of the micro-cube-shaped CTO is proposed to obtain nanoparticle aggregation of self-assembly nanoplates. The disorder coupled to the oxygen vacancies of [TiO5]-[TiO6] in complex clusters in the CTO 1 powder and twists in bonding between the [TiO6]-[TiO6] complex clusters in the CTO 2 powder were mainly responsible for photoluminescent (PL) emission. (C) 2015 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
Photoluminescencence, CaTiO3, Microwave-assisted hydrothermal
Como citar
Journal Of Luminescence. Amsterdam: Elsevier Science Bv, v. 165, p. 130-137, 2015.