Mono-Substituted 4,4-Dimethyl-2,2-Bipyridine Ligands at the Solid-Liquid Interface:Study of the Molecular Organization
Veronica N. Marin,
Ulrich S. Schubert.
Molecular organization has an important influence on the performance of organic materials, i.e. solar cells, light emitting diodes or sensors. 4,4-Dimethyl-2,2-bipyridines have been identified as a promising candidate for such applications. Therefore, high resolution STM investigations at the solid-liquid interface have been conducted, to study the intermolecular interaction of the bipyridine moieties. The results provide inside in the self-organization behavior of 4,4-dimethyl-2,2-bipyridines and the conclusions might help to understand the molecular arrangement of this class of molecules and might serve, on the long term, as a key to optimize their interaction with respect to improved optoelectronic properties.
Keywords: Scanning Tunneling Microscopy, Solid-liquid Interface, Self-Organization, Molecular Order, HOPG
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