Photoinduced formation of micro/nano periodic structures in thin i/o hybrid films consisting of the oxide precursor and photomonomer

Abstract

Organic–inorganic hybrid system offers a novel route for the spontaneous formation of ordered structures ranging from nano to micro meter scale. We used the sol-gel processing to deposit such photo monomer–titania-polymer hybrid films and obtained periodic microstructures through wrinkling process induced by photopolymerization. An accurate control of photo-chemical processes taking place in the coating films enables us to realize the self-organized formation of nano/micro ordered structure. It is expected for these surface patterned films to be used as highly functional photonic devices, bio-sensing systems and so on.