Balancing intermodular and molecule-substrate interactions in supramolecular assemblies

Dimas C. De Oteyza, Iñaki Silanes, Miguel Ruiz-Osés, Esther Barrena, Bryan P. Doyle, Andrés Arnau, Helmut Dosch, Yutaka Wakayama, J. Enrique Ortega

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)

Abstract

Self-assembly of functional supra-molecular nanostructures is among the most promising strategies for further development of organic electronics. However, a poor control of the interactions driving the assembling phenomena still hampers the tailored growth of designed structures. Here exploration of how non-covalent molecule-substrate interactions can be modified on a molecular level is described. For that, mixtures of DIP and F16CuPc, two molecules with donor and acceptor character, respectively are investigated. A detailed study of their structural and electronic properties is performed. In reference to the associated single-component layers, the growth of binary layers results in films with strongly enhanced intermolecular interactions and consequently reduced molecule-substrate interactions. This new insight into the interplay among the aforementioned interactions provides a novel strategy to balance the critical interactions in the assembly processes by the appropriate choice of molecular species in binary supra-molecular assemblies, and thereby control the self-assembly of functional organic nanostructures.

Original languageEnglish
Pages (from-to)259-264
Number of pages6
JournalAdvanced Functional Materials
Volume19
Issue number2
DOIs
Publication statusPublished - 23 Jan 2009
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Chemistry
  • Biomaterials
  • General Materials Science
  • Condensed Matter Physics
  • Electrochemistry

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