The Influence of Counter Ions on the Morphology of Cyanine Dye Aggregates at the Air / Water Interface

Takashi Watanabe, Makoto Shiga, Keisuke Asai, Kenkichi Ishigure

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In a cyanine dye LB film, the J-aggregates of the dye molecules form domain structure. The shape and size of this structure are largely influenced by the conditions of film fabrication. We made a through investigation about the effects of counter anions of the dye molecules and ions as additives in the subphase on the domain structure in dye monolayers at the air/water interfaces and in LB films by using a fluorescence microscope. We found the conditions under which we can promote or prevent the growth of the domains, and discussed the influ-ence of anions on π-A isotherm.

Original languageEnglish
Pages (from-to)135-138
Number of pages4
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume327
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes

Keywords

  • Cyanine dyes
  • Domain structure
  • Fluorescence microscopy
  • J aggregates
  • Monolayer

ASJC Scopus subject areas

  • Condensed Matter Physics

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