Synthesis and Characterization of Cobalt Oxide and Composite Thin Films
Advances in Materials
Volume 3, Issue 5, October 2014, Pages: 52-57
Received: Feb. 18, 2014; Accepted: Oct. 13, 2014; Published: Nov. 10, 2014
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Authors
Ulrika Lagerqvist, Dept. of Chemistry–Ångström, Ångström Laboratory, Uppsala university, Uppsala, Sweden
Mikael Ottosson, Dept. of Chemistry–Ångström, Ångström Laboratory, Uppsala university, Uppsala, Sweden
Annika Pohl, Dept. of Chemistry–Ångström, Ångström Laboratory, Uppsala university, Uppsala, Sweden
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Abstract
Cobalt oxide and composite thin films were synthesized by spin-coating technique, followed by heating to 500°C in oxidizing, inert, or reducing atmospheres. Methanolic solutions of triethanolamine complexes of cobalt acetates and nitrates were spin-coated at 1000, 2000, and 3000 rpm. The influence of heating parameters and film thickness on the phase content of the films were investigated, using grazing incidence X-ray diffraction, X-ray reflectivity, and scanning electron microscopy. By tuning the synthesis parameters, Co3O4, CoO and Co films were obtained, as well as CoO–Co and Co3O4–CoO composite films of varying phase ratios.
Keywords
Cobalt Oxides, Coo–Co Composites, Solution Synthesis, Thin Films, Tailor Composition
To cite this article
Ulrika Lagerqvist, Mikael Ottosson, Annika Pohl, Synthesis and Characterization of Cobalt Oxide and Composite Thin Films, Advances in Materials. Vol. 3, No. 5, 2014, pp. 52-57. doi: 10.11648/j.am.20140305.14
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