Appearance and composition of sol-gel-derived TiO2/SiO2 interference coatings

In the paper, appearance and composition of an optical interference multi-layer coatings derived by sol-gel process were introduced. In particular, it is given that the distribution function of micro particles diameter size and the variety situation of porousness and graininess, as well as the influence of heat-treated temperature on optical quality of coatings. A lot of measurement result is supported by ESCA, AES, SEM and AFM and so on.