Scanning Force Microscope

克劳斯塔尔工业大学物理化学研究所的研究重点是界面软物质。更具体的目标是样品的结构和粘弹性特性（纳米颗粒、聚合物吸附剂、囊泡、树突聚合物、自组织单层等）。这项研究将得到现代原子力显微镜的支持，该显微镜在电势控制下的液体中工作，可以获得样品的粘弹性特性，并且可以与其他界面分析方法相结合。石英晶体微天平与其他仪器的组合尤其相关。原子力显微镜是在谐振器振动时对谐振器表面的样品进行的。时间尺度的分离（基底的快速运动，悬臂的缓慢运动）允许采用新的方法来研究表面的动力学。这涉及粘弹性、（高频）摩擦学、电势的影响和（高频）流体力学。使用普通针尖，成像（具有新颖的对比机制）将是主要目标。球体（“胶体探针配置”）的使用将使新的以基础研究为导向的实验成为可能。该研究所的另一个重点是乳胶分散体形成薄膜。AFM测量应在干燥膜上进行。对于胶粘剂，需要研究（非线性）微观力学（纤颤）与宏观材料性能之间的关系。物理化学研究所广泛参与与邻近研究所（化学、物理、材料科学）以及与大学其他成员和外部用户的合作。典型的研究目标是聚偏氟乙烯纳米颗粒的压电性，有机电合成背景下石墨烯修饰电极的结构，裂纹尖端附近机械应力下玻璃的形貌，高温应用的复合氧化物的局部压电性，以及局部形貌“工程人工矿物”。该装置将由研究所的固定工作人员运行和监督。在称职的指导下，各种合作是可以开展的。通过这种方式，该工具将加强大学研究的一致性。

The Institute of Physical Chemistry at Clausthal University of Technology has its research focus on soft matter at interfaces. More specific targets are the structure and the viscoelastic properties of the samples (nanoparticles, polymer adsorbates, vesicles, dendri-mers, self-organized mono-layers, ...). This research shall be supported by a modern atomic force microscope, which works in liquids under controlled of the electrical potential, which provides access to the viscoelastic properties of the sample, and which can be combined with other methods of interface analysis. The combinability with other instruments is particularly relevant for the quartz crystal microbal-ance. Atomic force microscopy is to be performed on samples on a resonator surface while the resonator is vibrating. The separation of time scales (fast movement of the substrate, slower movement of the cantilever) allows for novel approaches to the dynamics of the surfaces under study. This concerns viscoelasticity, (high-frequency) tribology, the influence of electrical po-tentials and (high-frequency) hydrodynamics. Using ordinary tips, imaging (with novel contrast mechanisms) will be the main target. The use of spheres ("colloidal probe configuration") shall enable new fundamental-research-oriented experiments. A further focus of the institute is on film formation from latex dispersions. AFM measurements shall be performed in-situ on drying films. For adhesives, a correlation between (nonlinear) mi-cromechanics (fibrillation) and macroscopic material properties shall be studied. The Institute of Physical Chemistry is extensively involved in cooperations with institutes in the immediate vicinity (chemistry, physics, materials science) as well as with other members of the university and external users. Exemplary research goals are the piezoelectricity of nanoparticles of polyvinylidene fluoride, the structure of graphene-modified electrodes in the context of organic electro-synthesis, the topography of glasses under mechanical stress near the tip of cracks, the local piezoelectricity of complex oxides for high temperature applications, and the local topography “engineered artificial minerals”.The device is to be run and supervised by the members of the institute’s permanent staff. The various cooperations can be carried out under competent guidance. In this way, the instrument shall strengthen the coherence of research at the university.