Fabrication of Large Area Two and Three-Level Multiscale Structures with Multi-Functional Surface Properties using laser fabrication methods

功能化表面可以通过制造具有微米、亚微米和纳米范围特征的确定性或随机结构来获得。然而，通过使用由纳米或亚微米结构覆盖的微米级特征，可以显著增强表面性能，这在自然界中通常存在。该项目的主要目标是开发基于具有多尺度特征的地形表面图案的先进功能化表面制造的新概念和策略，以及了解两级和三级多尺度图案对表面特性的影响。为了尝试这一主要目标，将结合不同的基于激光的结构方法。此外，开发的技术还将用于生产用于卷到卷工艺的结构化金属印章，从而实现高达10 m²/min的创纪录制造速度。以可控和精确的方式系统地改变表面形貌特征，不仅可以获得表面工程领域的重要知识，还将为几个行业(如汽车、医疗、食品工业、制药)提供广泛的机会，所有这些行业都需要先进的功能化表面。

Functionalized surfaces can be obtained by fabricating deterministic or stochastic structures with features in the micrometer, submicrometer and nanometer range. However, significantly enhanced surface properties can be produced by using micrometer scaled features covered by nano- or sub-micrometer structures, which occurs typically in nature. The main objective of this project is to develop new concepts and strategies for the fabrication of advanced functionalized surfaces based on topographical surface patterns with a multiscale characteristic as well as understanding the effects of two and three-level multiscale patterns on surface properties. To attempt this main objective, different laser based structuring methods will be combined. Furthermore, the developed technologies will be also used to produce structured metallic stamps for roll-to-roll processes, permitting to achieve record fabrication speeds up to 10 m²/min. The systematic variation of the surface topographical characteristics in a controlled and precise way will not only allow gaining significant knowledge in the field of surface engineering, but also opening a wide spectrum of opportunities for several industries (e.g. automobile, medical, food industry, pharmaceutical), all of them requiring advanced functionalized surfaces.