Preparation and Ferroelectric Properties of Ba(1-x-y)CaxSryTiO3 Nanotubes

Abstract

Abstract In this paper, Ba(1-x-y)CaxSryTiO3 nanotubes with different doping concentrations were prepared by hydrothermal synthesis, and then their micro morphology, crystal structure, and ferroelectric properties were analyzed by SU8010 scanning electron microscope, D/MAX-2500 X-ray diffraction tester, and TF2000. It is found that the barium titanate nanotubes co doped with Ca and Sr have obvious tubular structure. With the increase of doping concentration, the nanotube diameter becomes smaller, the tube wall becomes thicker, and the ferroelectric properties of the samples increase first and then decrease. When 0.002mol/L Ca(CH3COO)2 and 0.002mol/L Sr(CH3COO)2 are doped, the maximum residual polarization intensity of Ba(1-x-y)CaxSryTiO3 is 0.097µC/cm2. At this time, there is a clear hysteresis loop image, and the ferroelectric performance is the best.