Study of langmuir-blodgett layers by a depth-sensitive positron technique

Cs Szeles, A. Vértes, Kiss, S. Szpala, K. G. Lynn

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Ferric and magnesium stearate Langmuir-Blodgett films (1) deposited on silica glass were studied by variable-energy positron beam. Positrons signal the presence of the film even after deposition of only 3 monolayers. A signal with 3 and 9% higherSparameter values are characteristic for the ferric and magnesium stearate films, respectively. In addition, positrons were found to be sensitive to the chemical structure of the layers. The results suggest that positron beams could be promising probes of the thickness, composition, and adhesion of Langmuir-Blodgett films.

Original languageEnglish
Pages (from-to)358-361
Number of pages4
JournalJournal of colloid and interface science
Volume176
Issue number2
DOIs
Publication statusPublished - Dec 15 1995

Keywords

  • Doppler broadening
  • Langmuir-Blodgett layers
  • Positron annihilation
  • Positron beam

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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