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2005-12-14 - Article/Dans un journal avec peer-review - Anglais - 4 page(s)

Cavallini M., Stoliar P., Moulin J.-F., Surin Mathieu , Leclère Philippe , Lazzaroni Roberto , Breiby D.W., Andreasen J.W., Nielsen M., Sonar P., Grimsdale A.C., Müllen K., Biscarini F., "Field-Effect Transistors based on Self-Organized Molecular Nanostripes" in Nano Letters, 5, 12, 2422-2425

  • Edition : American Chemical Society, Washington (DC)
  • Codes CREF : Physico-chimie générale (DI1320), Physique de l'état condense [struct., électronique, etc.] (DI1266)
  • 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) Charge transport properties in organic semiconductors depend strongly on molecular order. Here we demonstrate field-effect transistors where drain current flows through a precisely defined array of nanostripes made of crystalline and highly ordered molecules. The molecular stripes are fabricated across the channel of the transistor by a stamp-assisted deposition of the molecular semiconductors from a solution. As the solvent evaporates, the capillary forces drive the solution to form menisci under the stamp protrusions. The solute precipitates only in the regions where the solution is confined by the menisci once the critical concentration is reached and self-organizes into molecularly ordered stripes 100-200 nm wide and a few monolayers high. The charge mobility measured along the stripes is 2 orders of magnitude larger than the values measured for spin-coated thin films.

Notes :
  • (Anglais) Publié le 17 novembre 2005
Identifiants :
  • DOI : 10.1021/nl051685+
  • ISSN : 1530-6984