Growth Mechanism and Morphologies Tuning of ZnO Nanostructures

A variety of morphologies of ZnO nanostructure powders were successfully fabricated by chemical bath deposition (CBD) technique at a low temperature. The structure and morphology of the ZnO products were observed by scanning electron microscopy. The investigation demonstrated that the ZnO nanostructures showing the hexagonal wurtzite structure. The aspect ratio of ZnO nanorods decrease with the equimolar increasing of the reactants. The ZnO nanostructures show different morphologies with the increasing of the concentration when the reactant concentration is not equal. The forming mechanism of the ZnO nanostructures was discussed in detail.