Hydrothermal growth of ZnO nano rods without catalysts in a single step

Abstract

Abstract A very simple one step hydrothermal method was used to prepare ZnO nano rods without any catalyst or buffer layer before the reaction. The process took place inside stainless steel autoclave. ZnO nano rods and flower like were successfully synthesized using. Hexahedral zinc nitrate Zn(NO3)2.6H2O, DE fructose and NaOH were the starting materials for the chemical reaction under stirring with heat treatment. Then the obtained powder screen printed. In order to study the influence of the synthesis process on the morphology and the optical properties crystalinity and structural properties are studied by X-ray diffraction and field emission scanning electron microscope (FE-SEM), the experimental pattern of the films show that diffraction peaks can be assigned to the wurtzite hexagonal-shaped ZnO as shown in the FE-SEM pictures, also the morphology of the films studied by atomic force microscope shows that the prepared thick films have high roughness. The energy gap was estimated and optical behavior was studied.