Electronic Structure of Metal/Polymer Interfaces: Aluminum on Conjugated Polymers

  • R. Lazzaroni
  • J. L. Brédas
  • M. Chtaïb
  • P. Snauwaert
  • P. Dannetun
  • M. Lögdlund
  • K. Uvdal
  • W. R. Salaneck


Aluminum has been deposited on two types of conjugated polymers, polyalkylthiophene and polyaniline. The polymers were in the undoped, neutral form which possesses semiconducting properties. The chemical structure of the metal/polymer interface has been investigated by X-ray and UV photoelectron spectroscopy. Core level spectra indicate that aluminum reacts with the sulfur atom of the polythiophene chain, strongly perturbing the π-electron system. In the case of polyaniline, the interaction with the metal depends on the oxidation state of the polymer. UPS data, combined with the results of band structure calculations, are interpreted in terms of the Al-induced modifications of the π-electron system.


Sulfur Atom Core Level Poly Thiophene Band Structure Calculation Core Level Spectrum 
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Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • R. Lazzaroni
    • 1
    • 4
  • J. L. Brédas
    • 1
  • M. Chtaïb
    • 2
  • P. Snauwaert
    • 2
  • P. Dannetun
    • 3
  • M. Lögdlund
    • 3
  • K. Uvdal
    • 3
  • W. R. Salaneck
    • 3
  1. 1.Service de Chimie des Matériaux Nouveaux Département des Matériaux et ProcédésUniversité de Mons-HainautMonsBelgium
  2. 2.Laboratoire Interdépartemental de Spectroscopie ElectroniqueFacultés Universitaires Notre-Dame de la PaixNamurBelgium
  3. 3.Department of PhysicsLinköping UniversityLinköpingSweden
  4. 4.Fonds National de la Recherche ScientifiqueBelgium

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