- Molecular Junctions and Nanostructures
- Graphene research and applications
- Quantum and electron transport phenomena
- Surface and Thin Film Phenomena
- Surface Chemistry and Catalysis
- Topological Materials and Phenomena
- Electronic and Structural Properties of Oxides
- Electron and X-Ray Spectroscopy Techniques
Technische Universität Ilmenau
2025
CIC nanoGUNE
2023
Triangulenes are a class of open-shell triangular graphene flakes with total spin increasing their size. In the last years, on-surface-synthesis strategies have permitted fabricating and engineering triangulenes various sizes structures atomic precision. However, direct proof size remains elusive. this work, we report combined in-solution on-surface synthesis large nitrogen-doped triangulene (aza-[5]-triangulene) on Au(111) surface, detection its high-spin ground state. Bond-resolved...
Charge transport across a single-molecule junction fabricated from normal-metal tip, phthalocyanine, and conventional superconductor in scanning tunneling microscope is explored as function of the gradually closed vacuum gap. The phthalocyanine (2H-Pc) molecule its pyrrolic-hydrogen-abstracted derivative (Pc) exhibit vastly different behavior. Andreev reflection 2H-Pc contact exhibits temporary enhancement that diminishes again with increasing conductance. In contrast, single-Pc lacks same...
The understanding of electron transport through single atoms or molecules is important for the progress in realizing molecular electronics. Including a superconducting electrode such junctions particularly appealing because nondissipative character charge flow and associated opportunity conceiving low-loss electronic circuits. Moreover, low-energy excitations that are visible highly resolved spectroscopy current contain valuable information on pairing pair breaking interactions. This...
Abstract Triangulenes are a class of open‐shell triangular graphene flakes with total spin increasing their size. In the last years, on‐surface‐synthesis strategies have permitted fabricating and engineering triangulenes various sizes structures atomic precision. However, direct proof size remains elusive. this work, we report combined in‐solution on‐surface synthesis large nitrogen‐doped triangulene (aza‐[5]‐triangulene) on Au(111) surface, detection its high‐spin ground state....
Triangulenes are open-shell triangular graphene flakes with total spin increasing their size. In the last years, on-surface-synthesis strategies have permitted fabricating and engineering triangulenes of various sizes structures atomic precision. However, direct proof size remains elusive. this work, we report combined in-solution on-surface synthesis a large nitrogen-doped triangulene (aza-[5]-triangulene) detection its high ground state on Au(111) surface. Bond-resolved scanning tunneling...