A facial approach combining photosensitive solâ¿¿gel with self-assembly method to fabricate superhydrophobic TiO2 films with patterned surface structure

⿢Patterned TiO2 films were prepared by photosensitive sol⿿gel method.⿢Surface had quasi micro-lens array structure, leading to superhydrophobicity.⿢The surface with the lowest period exhibited the highest contact angel of 163°.⿢UV irradiation induced the conversion to superhydrophilicity.