Au111Fläche

Au111Fläche refers to a specific crystallographic surface orientation of gold, denoted as the (111) surface. In crystallography, the Miller indices (hkl) are used to describe the orientation of crystal planes. For gold, which has a face-centered cubic (FCC) crystal structure, the (111) plane represents the densest packing of gold atoms. This surface is characterized by a hexagonal arrangement of surface atoms, forming a flat and stable termination of the bulk crystal.

The Au(111) surface is of significant interest in various scientific fields, particularly in surface science, catalysis, and nanotechnology. Its atomic arrangement and electronic properties make it a model system for studying surface phenomena. Due to its low surface energy and relative inertness under certain conditions, it serves as a suitable substrate for the growth of thin films and nanoparticles. Techniques like scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED) are commonly employed to investigate the atomic structure and electronic states of the Au(111) surface.

In catalysis, the Au(111) surface, especially when modified or in nanoparticle form, can exhibit catalytic activity for various chemical reactions. Its electronic structure allows for interactions with adsorbates, facilitating bond breaking and formation. Understanding the behavior of molecules on the Au(111) surface is crucial for designing efficient catalysts. Furthermore, its use as a template for self-assembled monolayers and nanostructures highlights its importance in creating ordered surface architectures with tailored properties for applications in electronics and sensing.