Growth mechanism of two-component titania/vanadium oxide thin films from aqueous solutions

研究了二氧化钛/氧化钒双组分薄膜和粉末在电致变色器件(智能窗)和抗菌涂料中的潜在应用。对于薄膜的制备，将使用温度低于100°C的水溶液中的热解反应(化学浴沉积)。一般而言，该工艺允许对复杂形状的表面进行涂层，并为图案化涂层提供了一条简单的路线，同时也是一种替代传统气相沉积的经济方法。这些薄膜将通过测量有机化合物的光降解来测试其光催化活性。通过UV/Vis光谱和动态光散射实验对薄膜的形貌、微结构和化学成分进行研究，并对其形成机理进行研究。进一步的研究将包括在流体细胞中进行先进的原子力显微镜，以获得与薄膜形成相关的模型系统的力-距离曲线测量结果，并对这些结果进行评估。

The synthesis and characterization of two-component titania/vanadium oxide films and powders with respect to their potential application in electrochromic devices (¿Smart Window¿) and antimicrobial coatings is proposed. For the fabrication of the films thermohydrolytic reactions in aqueous solutions at temperatures below 100°C will be used (Chemical Bath Deposition). In general this procedure allows the coating of complex shaped surfaces and provides a simple route for patterned coatings as well as an economical alternative to conventional deposition from the gas phase. The films will be tested for photocatalytic activity by measuring the photodegredation of organic compounds. Investigations on morphology, microstructure and chemical composition of the films will be combined with studies on the formation mechanism by UV/VIS spectroscopy and dynamic light scattering experiments. Further studies will include advanced atomic force microscopy in fluid cells to obtain force-distance curve measurements of model systems related to the film formation and the assessment of these results.