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Recherche transversale
(titres de publication, de périodique et noms de colloque inclus)
2006-11-24 - Article/Dans un journal avec peer-review - Anglais - 11 page(s)

Surin Mathieu , Leclère Philippe , De Feyter S., Abdel-Mottaleb M.M.S., De Schryver F.C., Henze O., Feast J.W., Lazzaroni Roberto , "Molecule-Molecule versus Molecule-Substrate Interactions in the Assembly of Oligothiophenes at Surfaces" in Journal of Physical Chemistry B, 110, 15, 7898-7908

  • Edition : American Chemical Society, Washington (DC)
  • Codes CREF : Physico-chimie générale (DI1320), Chimie des surfaces et des interfaces (DI1327), Chimie macromoléculaire (DI1315)
  • Unités de recherche UMONS : Chimie des matériaux nouveaux (S817)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
Texte intégral :

Abstract(s) :

(Anglais) In this paper we present a joint experimental and theoretical approach for the study of the assembly of end-substituted oligothiophenes at surfaces with different polarities (i.e., mica vs graphite). Scanning probe microscopy studies of (sub)monolayer deposits show various types of structures (one-dimensional fibrils, two-dimensional regular layers, and monolayers), depending on the nature of the end groups and the substrate. Using molecular modeling with an atomistic approach, we focus on the interplay between the molecule-molecule (and segment-segment) interactions and the molecule-substrate interactions and their influence on the observed morphologies and the stacking geometry. Such information is relevant for controling the structural order in thin layers of thiophene oligomers for use in field-effect transistor applications, for example, by modifying the nature of dielectric material over which those compounds are deposited.

Notes :
  • (Anglais) Publié en ligne le 30 mars 2006
Identifiants :
  • ISSN : 1520-6106
  • DOI : 10.1021/jp056824q