Electronic Couplings in the Excited States of Crystalline and of Structured Carbon-based Solids (B14*)

该项目将使用时间和角度分辨（双光子）光电子能谱来确定SCA间架构中的电子耦合强度。耦合强度对于SCA架构间的功能至关重要，并且很难使用其他技术进行量化。第一个工作包将集中在碳基二维网络耦合的有机金属和共价键。这些系统是直接合成在真空中使用表面化学。该项目的一部分旨在将网络与表面解耦，使其可用于物理实验和潜在应用。第二个工作包分别研究了SCA三维晶体和SCA与分子π系统的共晶中的非共价偶联。将研究不同的几何形状（平坦和弯曲π系统）。第三个工作包将使我们小组的独特实验设施可用于SFB 953中的其他项目（金刚石涂层表面和石墨烯基器件的电子发射，碳纳米洋葱的电子结构）。

The project will determine the electronic coupling strengths in inter-SCA-architectures using time- and angle-resolved (two-photon) photoelectron spectroscopy. The coupling strengths are crucial for the functionality of inter-SCA-architecture, and difficult to quantify using other techniques. A first work package will focus on carbon-based two-dimensional networks coupled by organometallic and covalent bonds. These systems are synthesized directly in ultrahigh vacuum using on-surface chemistry. A part of the project aims to decouple the networks from the surface to make them accessible to photophysical experiments and potential applications. A second work package investigates the non-covalent couplings in three-dimensional crystals of SCAs and in co-crystals of SCAs and molecular π systems, respectively. Different geometries (flat and curved π systems) will be studied. A third work packages will make the unique experimental facilities of our group accessible to other projects within the SFB 953 (electron emission from diamondoid-coated surfaces and from graphene-based devices, electronic structure of carbon nano-onions).