Crystallization and optical properties of CCTO thin films under pressure influence
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Data
2012-08-20
Autores
Sequinel, T. [UNESP]
Tebcherani, S. M.
Kubaski, E. T.
Oliveira, L. H.
Siu Li, M.
Varela, José Arana [UNESP]
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Resumo
CCTO thin films were deposited on Pt(111)/Ti/SiO 2/Si substrates using a chemical (polymeric precursor) and pressure method. The pressure effects on the CCTO thin films were evaluated by XRD, FEG-SEM and optical properties. Pressure films were found to be more homogeneous and dense than chemical deposition films. Pressure also leaded to an increase in the photoluminescence emission; it is suggested that the displacement of Ti in the titanate clusters, favors the charge transference from TiO 6 to [TiO 5V o z], TiO 5V o z] to [CaO 11V o z] and [TiO 5V o z] to [CuO 4] x. The low synthesis temperature used in the pressure method allows the deposition of films on less expensive substrates (i.e. glass, aluminum, polymer and others).
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Palavras-chave
CCTO, Pressure method, Thin films, Chemical deposition, Deposition of films, FEG-SEM, Photoluminescence emission, Polymeric precursors, Pressure films, Pt(111), Synthesis temperatures, TiO, XRD, Aluminum coatings, Exhibitions, Nanotechnology, Optical properties, Platinum, Polymer films, Polymers, Pressure effects, Vapor deposition, Nanocomposite films
Como citar
Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012, p. 698-701.