PbTiO3 nanowires with diameters of 20-30 nm and lengths of about 2-3 um have been synthesized by a simple surfactant-free hydrothermal method. The resulting products were characterized by X-ray powder diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM). It was found that KOH concentration played an important role in the formation of large quantities of PbTiO3 nanowires and a possible mechanism for the formation of nanowires is discussed

Keywords: Hydrothermal, PbTiO3 nanowires.