Abstract
Surface morphology of oxacyanine dye (OC) suddenly changes in mixed Langmuir-Blodgett films composed of OC, arachidic acid, and methyl arachidate when the OC fraction becomes more than 30 mol %. The agglomerates of OC show a ring structure just like a rubber band. The diameter and the shape of the "rubber band" change with different OC fractions, and microcrystalline domains appear when J-type aggregates are formed. The morphological change of the surface monolayer is well-correlated with a change in the electroabsorption spectra of the OC chromophore.
Original language | English |
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Pages (from-to) | 6226-6230 |
Number of pages | 5 |
Journal | Langmuir |
Volume | 14 |
Issue number | 21 |
DOIs | |
Publication status | Published - 1998 Oct 13 |
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Spectroscopy
- Electrochemistry