SrBi2Nb2O9 thin films deposited by dip coating using aqueous solution
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Data
1999-01-01
Autores
Zanetti, S. M.
Leite, E. R.
Longo, Elson [UNESP]
Varela, José Arana [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
A new approach for SrBi2Nb2O9 (SBN) thin films synthesis using aqueous solution was successfully experienced. The deposition solution was prepared from Sr-Bi-Nb mixed-citrate solution, requiring no special atmosphere and using common reagents. Films were deposited by dip coating onto Pt/Ti/SiO2/Si(100) substrates and hear treated at temperatures ranging from 300 to 700 degrees C. The process of formation and crystallization of SrBi2Nb2O9 thin films, prepared by the aqueous solution method have been studied with particular emphasis on the microstructure of crystallized films. Crystalline phases formation were followed by grazing incident X-ray diffraction (GIXRD), microstructure characterization was evaluated by scanning electron microscopy (SEM) and surface roughness were observed using atomic for ce microscopy (AFM). To reach the desired thickness, substrates were dipped in the deposition solution twice, forming double-layered films. The thickness of each layer ranged from 80 to 100 nm. (C) 1999 Elsevier B.V. Limited. All rights reserved.
Descrição
Palavras-chave
films, sol-gel processes, niobates, perovskites
Como citar
Journal of the European Ceramic Society. Oxford: Elsevier B.V., v. 19, n. 6-7, p. 1409-1412, 1999.