Some critical issues on the structural properties of Nb2O5 nanostructure film deposited by hydrothermal technique
Halema Asady, Evan T. Salim, Raid A. Ismail
Abstract
In preparing Nb2O5 thin films under hydrothermal conditions, deposition time among the key factors that influence the crystallinity of Nb2O5 nanostructures. The effect of deposition time on the crystalline, grain size, dislocation, and strain was investigated by using XRD analysis. Experiments were performed at reaction time varied time from 12 to 168 hours at 150 °C. Thin films were predicted through nucleation and growth reaction. As the Reaction time of mineralize increased, the grain size of the thin film became bigger and more uniform and homogeneous. It is found the optimum deposition time required to produce the best Nb2O5 crystalline structure is 72 hours. FESEM and Eds at optimum reaction time were also investigated which revealed the formation of a stoichiometic nanoflake films.