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Title: Fabrication of dense La0.05Sr0.95CoO3-y thin film on porous MgO and CeO2 substrates
Authors: Hong, L. 
Chen, X.
Guo, F.
Keywords: Ceramic
Surface structure
Issue Date: 15-Jun-2001
Citation: Hong, L., Chen, X., Guo, F. (2001-06-15). Fabrication of dense La0.05Sr0.95CoO3-y thin film on porous MgO and CeO2 substrates. Thin Solid Films 389 (1-2) : 27-33. ScholarBank@NUS Repository.
Abstract: Thin films of the functional ceramic material La0.05Sr0.95CoO3-y, an important mixed-conducting oxide, were successfully prepared on porous CeO2 and MgO substrates by means of the spin-coating technique. This work developed a pre-coating treatment with which surfaces-pores are plugged tentatively with silver so that a thin liquid film of the precursor solution can be spread on the substrate evenly, and a uniform crack-free thin film of the desired composition can be formed by subsequent curing, pyrolysis and firing. The curing yields a metallo-organic polymer film and the pyrolysis converts the polymer into an amorphous oxide layer. During firing of the amorphous oxide, a thin film with a cubic crystalline phase is generated. The technique allows a dense La0.05Sr0.95CoO3-y film to be fabricated if a sufficient number of coatings is applied on relevant substrates. This paper also discusses the influence of the surface roughness of a substrate and chemical composition of the precursor solutions used on the morphology of the resulting ceramic film. © 2001 Elsevier Science B.V.
Source Title: Thin Solid Films
ISSN: 00406090
DOI: 10.1016/S0040-6090(01)00852-5
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