SKM 2023 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
O: Fachverband Oberflächenphysik
O 38: Poster: Organic Molecules on Inorganic Substrates II
O 38.3: Poster
Dienstag, 28. März 2023, 18:00–20:00, P2/EG
Thiahelicene non-covalent molecular wires on Cu(111) — •Gema Navarro1, Antoine Hinaut1, Shuyu Huang1, Thilo Glatzel1, Akimitsu Narita2, and Ernst Meyer1 — 1Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland. — 2Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0495, Japan
In recent years molecular nanowires have attained a paramount interest due to their potential application in the next generation of nanodevice. Therefore, researchers have been focused in the development of novel synthetic routes to achieve stable nanowires, also in the influence of heteroatoms doping to control optical or electronic properties [1]. Usually, the on-surface synthesis approach is adopted due to the robustness and versatile chemistry reactions available [2].
In the present study, we explore the deposition of thiahelicene molecules on Cu(111) as possible candidates for nanowires formation. Sample preparation and measurements were carried out at room temperature in an UHV system and the images were acquired by a non-contact AFM microscope. AFM-micrographic images illustrated the formation of molecular wires along the monocrystalline terraces. The growth process of the molecular wires retains the three-fold symmetry of the substrate, although, some defect points can be distinguished in their structure. In addition, the high mobility of the molecules indicates a weakly interaction with the copper surface.
[1] B. Mallada et al., ACS Appl. Mater. Interfaces 13, 32393 (2021).
[2] D.Y. Li et al., J. Am. Chem. Soc. 143, 12955 (2021).