Noncovalent bicomponent self-assemblies on a silicon surface.

ACS Nano

Institut FEMTO-ST, Université de Franche-Comté, CNRS, ENSMM, 32, Avenue de l'Observatoire, F-25044 Besançon Cedex, France.

Published: August 2012

AI Article Synopsis

  • Researchers are focusing on creating two-dimensional supramolecular networks on surfaces for advanced materials with nanometer features, aimed at applications in areas like nanoelectronics and energy storage.
  • A successful demonstration involved constructing a stable 2D open supramolecular framework on a silicon adatom surface, maintaining thermal stability up to 400 K, by utilizing interactions between molecules and the silicon substrate.
  • This framework enabled the controlled growth of bicomponent arrays of fullerenes without covalently bonding to the silicon, leading to a precise long-range periodic arrangement.

Article Abstract

Two-dimensional supramolecular multicomponent networks on surfaces are of major interest for the building of highly ordered functional materials with nanometer-sized features especially designed for applications in nanoelectronics, energy storage, sensors, etc. If such molecular edifices have been previously built on noble metals or HOPG surfaces, we have successfully realized a 2D open supramolecular framework on a silicon adatom-based surface under ultrahigh vacuum with thermal stability up to 400 K by combining molecule-molecule and molecule-silicon substrate interactions. One of these robust open networks was further used to control both the growth and the periodicity of the first bicomponent arrays without forming any covalent bond with a silicon surface. Our strategy allows the formation of a well-controlled long-range periodic array of single fullerenes by site-specificity inclusion into a bicomponent supramolecular network.

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Source
http://dx.doi.org/10.1021/nn301827eDOI Listing

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