Effect of rapid thermal annealing on property of nano-SnO₂ thin film

By using SnCl₂ 2H₂O as main materials and ethanol as solvent, nano-SnO₂ thin films were prepared by sol-gel technique with rapid thermal annealing (RTA). The effect of rapid thermal annealing (RTA) on property of nano-SnO₂ thin film was explored. The size of grains, the microstructure, the morphology and the optical properties of nano-SnO₂ thin films were characterized by XRD, SEM, PL and FT-IR. The results indicate that the optical property and the grain-size, the microstructure, and the morphology of the samples change evidently with different temperature of RTA.