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Coating of LaCoO3 Thin Film with Sol–Gel Dip Coating Method

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Abstract:

LaCoO3 thin film was coated on Al2O3 single crystal by sol–gel route. Appropriate composition of precursors, chelating agents and the solvent put together into a flask and magnetically stirred on a magnetic stirrer. After having the red transparent solution, it was stirred for 12 hours before coating. Ultrasonically cleaned substrate is dipped into the solution and taken immediately into vertical furnace which is preheated at 550 °C. A dense amorphous film is coated on the substrate. Fired amorphous films are annealed at temperature between 900 °C and 1000 °C for 20 minutes in the air. Then coated film was characterized by means of XRD, AFM, and SEM. Conductivity of the film was measured to be −0.1819 for 881 °C for the log value by assuming the thickness as 1 m.

Keywords: COATING; LACOO3; SOFC; SOL-GEL

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2008.A052

Publication date: February 1, 2008

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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