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TiO2-based vitreous coatings obtained by sol-gel method

Authors
Journal
Journal of Non-Crystalline Solids
0022-3093
Publisher
Elsevier
Publication Date
Volume
160
Identifiers
DOI: 10.1016/0022-3093(93)90296-a

Abstract

Abstract TiO 2 films and TiO 2 films incorporating cobalt and copper ions by the sol-gel method were investigated. Undoped TiO 2 films crystallize to anatase above 300°C. Cu 2+ and Co 2+ inhibit the crystallization of anatase with Cu having a stronger influence then Co. Cu 2+ introduced in the lattice has a square planar coordination in TiO 2 matrix while Co 2+ has a octahedral coordination. These films are coloured thus the optical properties of TiO 2 films can be strongly modulated by the incorporation of a transition metal ion.

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