Template synthesis and characterization of PbTiO3 nanowire arrays from aqueous solution

Highly ordered PbTiO3 nanowire arrays were first reported by fabricating within the pores of anodic aluminum oxide (AAO) template in the aqueous solution by liquid-phase deposition method. The structure and morphology of PbTiO3 nanowire arrays were characterized by SEM and TEM, respectively. The XRD result shows that desired stoichiometric composition could be easily obtained preparing the treatment solution during post-annealing in order to crystallize the nanowires. TEM analyses confirmed that the obtained nanowires composed of large crystals than others made by sol–gel methods. Finally, a possible growth mechanism of the PbTiO3 nanowires is discussed.

Graphical abstractA novel process for preparing lead titanate nanowire arrays by liquid phase deposition method is first proposed. Large area and near unidirectionally aligned nanowires could be easily prepared from aqueous solution. Desired stoichiometric composition is easily obtained as preparing the treatment solution during the post-annealing to crystallize the nanowires.Figure optionsDownload full-size imageDownload as PowerPoint slide