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O: Fachverband Oberflächenphysik

O 111: Nanostructures at Surfaces: Molecular Systems III

O 111.5: Vortrag

Freitag, 24. März 2017, 11:30–11:45, REC/PHY C213

Structural analysis of small carbon cage molecules with low temperature scanning probe microscopy — •Jalmar Tschakert¹, Daniel Ebeling¹, Marvin Stiefermann¹, Marina Sekutor², Peter Schreiner², and André Schirmeisen¹ — ¹Institute of Applied Physics - Justus Liebig University, Gießen, Germany — ²Institute of Organic Chemistry - Justus Liebig University, Gießen, Germany

Diamondoids are small hydrogen terminated carbon cage molecules that are composed of one or more unit cages of the diamond lattice. Self-assembled monolayers of such molecules are known for their outstanding electronic properties [1,2]. Here we study the self-assembly process of tetramantane molecules (i.e., a diamondiod that consists of four diamond unit cages) on Cu(111) and Au(111) surfaces by low temperature atomic force microscopy with CO-functionalized tips. This allows us to determine the precise orientation and arrangement of the adsorbed molecules within 2D islands, which gives new insight into the underlying mechanism of the self-assembly process of these molecules.

Science 316, 1460-1462 (2007)
Nature Nanotechnology 11, 267-272 (2016)