Benetzung auf stukturierten Substraten und Elektrowetting

液体在非均匀基底上的行为由于许多原因而引起人们的极大兴趣，其中最明显的原因是所有的真实的表面都是非均匀的。此外，图案化基板的润湿的研究产生洞察润湿的基本相互作用机制。该项目集中于研究表面的润湿性，其润湿性已被人工图案化，但没有或只有小的地形结构。随着在亚微米制度的图案，我们可以确定的三相接触线张力第一次明确，采用两种互补的分析技术。图案化的表面的润湿的硬球模型流体是有趣的研究也在更大的尺度上，因为这些颗粒的直径是约一个数量级大于其他液体的分子。这样一个系统的优点是它的上级理论上的易处理性。

The behaviour of liquids on inhomogeneous substrates is of great interest for quite a number of reasons, the most obvious of which being the fact that all real surfaces are inhomogeneous. Furthermore, the study of wetting of patterned substrates yields insight into fundamental interaction mechanisms of wetting. This project concentrates on the study of surfaces the wettability of which has been artificially patterned as to its wettability, but have no, or only small, topographic structure. With patterns in the sub-micron regime, we can determine the three-phase contact line tension for the first time unambiguously, employing two complementary analysis techniques. The wetting of the patterned surface by a hard-spheres model fluid is interesting to study also on larger scales, since the diameter of these particles is about one order of magnitude larger than molecules of other liquids. The advantage of a system like that is its superior theoretical tractability.