Plasmons as the primary mechanism of ion-induced modifications in polymers

J. P. Moliton, C. Jussiaux-Devilder, T. Trigaud, R. Lazzaroni, Jean-Luc Bredas, Y. Kihn, J. Sevely

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The phenomena that lead to modifications of polyimide, polycarbonate and polyparaphenylene irradiated by an ion beam in the 100 keV energy range are studied. A model of energy transfer based on plasmon-like collective effects occurring during the physical stage of the ion-polymer interaction, previously implemented for poly(methyl methacrylate) and cellulosic derivatives, is extended to these polymers. In the framework of this model, we carry out quantum-chemical calculations of the valence-band density of electronic states. The resulting theoretical spectrum is then compared with the experimental plasmon line obtained by electron-energy-loss spectrometry. This approach sheds light on the selective bond cleavages induced by the energy transfer at the primary physical step of the ion-polymer interaction.

Original languageEnglish (US)
Pages (from-to)793-815
Number of pages23
JournalPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume79
Issue number5
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)

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