Figure 4From: Fabrication of ZnCoO nanowires and characterization of their magnetic propertiesSchematics illustrating the growth processes of ZnCoO nanowires and photographs of trioctylamine solution. Under (a) Ar and (b) air ambient gas. Oxidation of trioctylamine in (b) produces polar amine oxides. (c) Photographs of trioctylamine solution and the ZnCoO nanowire solutions, showing the different colors during the reaction, depending on O2 content.Back to article page