Preparation and characterization of SrTiO_3 nanowires via sol-gel template method

Porous anodic aluminium oxide (AAO) template was fabricated by two-step anodization,and highly ordered SrTiO3 nanowires were prepared within the pores of AAO template via sol-gel template method. The structure , compositions and morphology of SrTiO3 nanowires obtained were characterized by X-ray diffraction(XRD),energy dispersive spectroscopy (EDS),scanning electron microscope (SEM),transmission electron microscope (TEM) and selected area electronic diffraction (SAED). The results show that the pores of the AAO template are parallel to each other with similar length of diameter containing four elements : Al,O,Sr,Ti 4 . Moreover, the length and diameter of the nanowires are 13 μm and 70 nm,respectively. The prepared SrTiO3 nanowires belong to cubic system and polycrystalline structure.