Abstract
We report a template-directed growth of Pb(Zr x ,Ti1 − x )O3 (PZT) nanotubes in conjunction with sol-gel process and spin coating technique. Field emission scanning electron microscope (FESEM) images show that PZT nanotubes are well packed inside the pore of a porous alumina membrane (PAM). A Field emission transmission electron microscope (FETEM) image of a freestanding PZT nanotube shows that its outer diameter and length are estimated to be 50 nm and several microns, respectively. High resolution FETEM analysis reveals that PZT nanotubes have a wall thickness of 5 nm and consist of crystallites with a size in the order of 2–3 nm. The occurrence of electron diffraction ring patterns confirms that the typical PZT nanotube is polycrystalline.
Acknowledgment
This work was supported by the Korea Research Foundation through Grant funded by the Korean Government (MOEHRD) through Grant No. KRF-2006-312-C00136.