Photocatalytically, active multi-layer systems with enhanced transmission

被引:16
作者
Toelke, Tina [1 ]
Heft, Andreas [1 ]
Pfuch, Andreas [1 ]
机构
[1] Innovent eV, Dept Surface Engn, D-07745 Jena, Germany
关键词
photocatatysis; hydrophilicity; titanium oxide; transmission;
D O I
10.1016/j.tsf.2007.05.088
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Photocatalytically active TiO2-films show a high reflectivity, this makes them inapplicable for use in self-cleaning solar cover sheets. To resolve this problem, an antireflective system with a top coat of SnO2 is used. Glass samples coated with such a layer system have a better transmission than commercially available self-cleaning glasses. A composition with SiO2 barrier/TiO2 underlayer/SnO2 top layer presents better degradation rates than pure TiO2 with a barrier layer. The 3-layer system also possesses lower water contact angles after irradiation and a prolonged hydrophilicity. The properties of the layer system depend on the partial oxygen pressure used during the reactive sputtering of the TiO2 film and the thickness of the TiO2-layer as well as of the SnO2-layer. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:4578 / 4580
页数:3
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