A5063280645- Surface Chemistry and Catalysis
- Graphene research and applications
- Molecular Junctions and Nanostructures
- Porphyrin and Phthalocyanine Chemistry
- Copper-based nanomaterials and applications
- ZnO doping and properties
- Surface and Thin Film Phenomena
Technical University of Munich
2022-2024
On-surface synthesis made the fabrication of extended, atomically precise π-conjugated nanostructures on solid supports possible, with graphene nanoribbons (GNRs) and porphyrin-derived oligomers standing out. To date, examples combining these two prominent material classes are scarce, even though chemically versatile porphyrins atomistic details nanographene spacers promise an easy tunability structural functional properties resulting hybrid structures. Here, we report on-surface extended...
Engineering quantum phenomena of two-dimensional nearly free electron states has been at the forefront nanoscience studies ever since first creation a corral. Common strategies to fabricate confining nanoarchitectures rely on manipulation or applying supramolecular chemistry principles. The resulting nanostructures do not protect engineered electronic against external influences, hampering potential for future applications. These restrictions could be overcome by passivating with chemically...
Abstract This study investigates the synthesis of tetra‐ and octa‐O‐fused porphyrinoids employing an oxidative O‐annulation approach through C−H activation. Despite encountering challenges such as overoxidation instability in conventional solution protocols, successful was achieved on Au(111) surfaces under ultra‐high vacuum (UHV) conditions. X‐ray photoelectron spectroscopy, scanning tunneling microscopy, non‐contact atomic force microscopy elucidated preferential formation pyran moieties...
This study investigates the synthesis of tetra- and octa-O-fused porphyrinoids employing an oxidative O-annulation approach through C-H activation. Despite encountering challenges such as overoxidation instability in conventional solution protocols, successful was achieved on Au(111) surfaces under ultra-high vacuum (UHV) conditions. X-ray photoelectron spectroscopy, scanning tunneling microscopy, non-contact atomic force microscopy elucidated preferential formation pyran moieties via C-O...
Chemical vapour deposition enables large-domain growth of ideal graphene, yet many applications graphene require the controlled inclusion specific defects. We present a one-step chemical procedure aimed at retaining precursor topology when incorporated into grown carbonaceous film. When azupyrene, molecular analogue Stone-Wales defect in is used as precursor, monolayers with range morphologies are produced function copper substrate temperature. The higher temperature during deposition,...