Fabrication of Ordered Macroporous Titania Film using Self-assembly an Organic Template and A Simple Dip-Coating Technique

An organic colloidal crystal templating method has been used to fabricate an excellent and a large-are three-dimensionally ordered macroporous titania films. The matrix was obtained through a dip-coating process, with subsequent removal of the templates by heat treatment. A scanning electron micrograph confirms the ordering of macroporous structure film could be produced and transmission spectra shows a pronounced attenuation refractive index when pores was existed. Bragg’s law calculation was also used to calculate the filling fraction of the titania backbone.