Regensburg 2022 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 65: 2D Materials 2: Growth, Structure and Substrate Interaction
O 65.5: Vortrag
Donnerstag, 8. September 2022, 11:30–11:45, S052
Spectroscopic and microscopic study of carborane based 2D materials — •Martha Frey1, Julian Picker1, Jakub Višňáḱ2, Christof Neumann1, Tomáš Baše2, and Andrey Turchanin1 — 1Friedrich Schiller University Jena, Institute of Physical Chemistry, Lessingstraße 10, 07743 Jena, Germany — 2The Czech Academy of Sciences, Institute of Inorganic Chemistry, 250 68 Husinec-Rez, c.p. 1001, Czech Republic
Carboranes are electron-delocalized molecular clusters containing boron, carbon and hydrogen. Because of their high stability and structural variability, they are interesting for a wide range of applications including nanoscale engineering, catalysis and boron neutron capture therapy. Here, we present the fabrication of a novel boron-based two-dimensional (2D) material via electron irradiation induced cross-linking of carborane self-assembled monolayers (SAMs) on silver or gold substrates. The SAMs, the cross-linking process and the resulting 2D nanosheets have been characterized with different complementary surface sensitive techniques including X-ray photoelectron spectroscopy (XPS), low-energy electron diffraction (LEED), scanning tunneling microscopy (STM) and scanning electron microscopy (SEM).