High-Speed Atomic Force Microscope

第一申请人工作组的研究工作集中在粘附、腐蚀和纳米生物材料的界面化学方面。在所有这些领域中，电解质/固体界面处的亚微观结构的动力学具有突出的重要性。到目前为止，相关的过程，如分子吸附，解吸，自组织或腐蚀不能在真实的时间分析。拟议中的高速原子力显微镜（HS-AFM）现在旨在缩小这一方法上的差距。它将能够在纳米范围内跟踪表面和界面的动态，时间分辨率在秒的范围内。特别是，该设备不仅可以研究模型表面，还可以研究相关环境条件下（例如，在机械负载和电极电位控制下）的复杂材料和涂层。帕德博恩大学化学系的合作研究小组考虑了能量储存和转换以及涂层和工艺技术的研究课题。在这些领域，高速原子力显微镜也可以对材料的结构，动力学和功能特性的相关性进行新的见解。HS-AFM的应用还显著支持了中央科学设施“混合系统轻量化设计研究所”的活动。在这里，应用的重点是在腐蚀条件或机械负荷下分析合金和聚合物表面以及复合材料。第二申请人的工作组的研究重点是使用自组织方法大规模生成功能性纳米结构。重点是对动态过程的基本理解，这些动态过程允许在大表面上有针对性地生成周期性纳米粒子，这些纳米粒子可用于广泛的应用。其中包括先进的微电子学和光电子学、等离子体、传感器技术、能源、医学和环境技术。取决于待制造的结构的类型和通常10 - 1000 nm的所需结构尺寸，嵌段共聚物光刻和/或纳米球光刻与薄膜沉积方法或最近的2D材料转移相结合。所实现的结构尺寸使得有必要用原子力显微镜研究表面形貌，并通过现代透射电子显微镜分析内部结构。对于后者，工作组操作最先进的分析高分辨率TEM，这是提供给邻近的小组在教师和其他大学的合作。

The research work in the first applicant's working group focuses on interfacial chemistry aspects of adhesion, corrosion and nanobiomaterials. In all these areas, the dynamics of submicroscopic structures at electrolyte/solid interfaces is of outstanding importance. Until now, relevant processes such as molecular adsorption, desorption, self-organisation or corrosion could not be analysed in real time. The proposed high-speed atomic force microscope (HS-AFM) is now intended to close precisely this methodological gap. It will enable to follow the dynamics of surfaces and interfaces in the nanometer range with a temporal resolution in the range of seconds. In particular, the device should make it possible to investigate not only model surfaces but also complex materials and coatings under relevant environmental conditions (e.g. under mechanical load and control of the electrode potential). Cooperating research groups in the department of chemistry at Paderborn University consider research topics of energy storage and conversion, as well as coating and process technology. In these areas, too, high-speed atomic force microscopy allows new insights into the correlation of structure, dynamics and functional properties of materials. The application for the HS-AFM also significantly supports the activities of the central scientific facility "Institute for Lightweight Design with Hybrid Systems". Here, the focus of the application is on the analysis of alloy and polymer surfaces as well as composite materials under corrosive conditions or mechanical load. The research in the second applicant's working group focuses on the large-scale generation of functional nanostructures using self-organization methods. The focus is on the fundamental understanding of dynamic processes that allow the targeted generation of periodic nanopatterns on large surfaces, which can be used in a wide range of applications. These include advanced micro- and optoelectronics, plasmonics, sensor technology, energy, medicine and environmental technology. Depending on the type of structure to be fabricated and the required structure size of typically 10 - 1000 nm, block copolymer lithography and/or nanosphere lithography are combined with thin film deposition methods or, more recently, 2D material transfer. The achieved structure sizes make it necessary to investigate the surface morphologies with atomic force microscopes and to analyze the internal structure by means of modern transmission electron microscopy. For the latter, the working group operates state-of-the-art analytical high-resolution TEM, which is made available to neighboring groups in the faculty and at other universities in collaborations.