Study on Hydrophilicity of Ni2+ Doped TiO2 Thin Films

In order to solve the transmission system problems of Flashover, Ni2+ doped TiO2 thin film and pure TiO2 thin film were prepared by sol-gel method. The crystalline phase and morphology were characterized by XRD and AFM, and static contact angle measurement was employed to estimate the wettability of prepared films. The results indicate that a small amount of Ni2+ doped TiO2 thin film makes hydrophilicity and photoinduced hydrophilicity increasing.