Regensburg 2025 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
O: Fachverband Oberflächenphysik
O 5: Scanning Probe Microscopy: Light-Matter Interactions at the Atomic Scale I
O 5.1: Talk
Monday, March 17, 2025, 10:30–10:45, H6
Simulated tip-enhanced Raman scattering fingerprints of doped triangulenes — •Orlando Silveira1,2, Markus Junttila1, Shawulienu Kezilebieke2,3, and Adam Foster1,4 — 1Department of Applied Physics, Aalto University, Espoo, Finland — 2Department of Physics, Nanoscience Center, University of Jyvaskyla, Jyvaskyla, Finland — 3Department of Chemistry, University of Jyvaskyla, Jyvaskyla, Finland — 4WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa, Japan
Triangulenes are organic molecules promising for future applications in spintronics technologies, and fine tunning their electronic and magnetic properties will only extend the potential applications. A reliable possibility for such control is doping the triangulenes with different atoms such as nitrogen and boron. Usually, the reaction yield of triangulenes is quite small, and it is prohibitive to use techniques with high cross section such as Raman to chemically characterize the triangulenes. In the other hand, scanning probe microscopy (SPM) techniques have been successfully used for their structural characterization. In this work, we propose that the tip-enhanced Raman scattering (TERS) can be used for simultaneous chemical and structural characterization of the triangulenes. Our work offers a new perspective to study the triangulenes, as their vibrational properties have not yet been fully investigated, and the same simulation protocol used here can be applied to any other type of molecule.
Keywords: scanning tunneling microscopy; Raman; tip-enhanced; density functional theory