Hydrothermal synthesis of well- aligned TiO2 nanorod arrays grown on transparent conducting oxide coated glass

TiO2 is a wide band gap semiconductor that its one dimensional nanostructures have attracted many researchers due to its excellent physical and chemical properties. TiO2 nanorod is used in wide applications such as photocatalysis, photovoltaics, energy storage, electrochromic devices and sensors due to its appropriate electronic band structures, but synthesis of TiO2 nanorod grown perpendicular to the substrate is still a great challenge.in this work, self-assembled and well-aligned TiO2 nanorod arrays are fabricated on pretreated fluorine doped tin oxide coated glass by hydrothermal method at 150C. Energy- dispersive X-ray analyze (EDX), scanning electron microscopy (SEM) are used to characterise TNAs. Oriented TiO2 nanorods are prepared from mixing hydrochlorc acid and acetic acid are well-aligned in compare to TiO2 nanorods arrays are prepared from single acid system. It is found that HOAc can control the morphology and diameter of nanorods. With increasing the value of precursor, the length of nanorod increases but still remains perpendicular to the substrate.

کلیدواژه ها:

TiO2 nanorods ، well-aligned ، hydrothermal method