Optical properties of potassium niobate thin films prepared by the polymeric precursor method
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Data
2005-02-01
Autores
Simoes, A. Z.
Ries, A.
Riccardi, C. S.
Zaghete, M. A.
Varela, José Arana [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Elsevier B.V.
Resumo
Thin films of potassium niobate were deposited on MgO (100) substrates by the polymeric precursor method and annealing in static air at 600 degreesC for 20 h. The obtained films were characterized by X-ray diffraction, atomic force microscopy (AFM) and the prism coupling method. The phi-scan diffraction evidenced the growth of the films with fourfold symmetry. AFM study shows that the films are homogeneous, dense and present a smooth surface. The refractive index and optical losses were strongly influenced by the degree of crystallinity. (C) 2004 Elsevier B.V. All rights reserved.
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Palavras-chave
crystal structure, optical materials and properties, thin films
Como citar
Materials Letters. Amsterdam: Elsevier B.V., v. 59, n. 5, p. 598-602, 2005.