The chemical and electronic structure of the interface between aluminum and conjugated polymers

R. Lazzaroni*, Jean-Luc Bredas, P. Dannetun, C. Fredriksson, S. Stafström, W. R. Salaneck

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

The chemical and electronic structure of the interface between aluminum and several proto-typical conjugated systems is investigated with a combined experimental and theoretical approach. The experiments consists of following the evolution of the polymer surface during the early stages of aluminum deposition, with X-ray and Ultraviolet Photoelectron Spectroscopies (XPS, UPS). In parallel, quantum chemical calculations are performed on model oligomer systems interacting with isolated Al atoms. Aluminum is found to interact strongly with the polymer chain. New covalent Al-carbon bonds are formed along the polymer backbone; the chain geometry is deeply modified and the π electron conjugation can be dramatically reduced.

Original languageEnglish (US)
Pages (from-to)235-244
Number of pages10
JournalElectrochimica Acta
Volume39
Issue number2
DOIs
StatePublished - Jan 1 1994

Keywords

  • electronic structure
  • interface chemistry
  • polymer-based devices

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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