The illustration shows how iodine (purple) is embedded between the organic layer and the metal, thus reducing adhesion. Credit: IFM, University of Linköping
Research news - Defined metal surfaces support the formation of two dimensional nanostructures. It is very difficult, however, to transfer these ultimately thin structures to other surfaces. Within an international cooperation project, scientists at the Technical University of Munich (TUM) found an elegant way to decouple the nanostructures from the substrate: Iodine atoms creep between the network of organic molecules and the metal surface. This opens up new ways to transfer organic nanostructures from metal surfaces onto substrates more suitable for molecular electronics. Specific organic molecules - typically on reactive metallic surfaces - can interlink via chemical bond formation into extended nanostructures. Highly stable two-dimensional molecular networks can be grown in this manner. However, these networks then adhere to the metallic support, which strongly influences their properties.
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