Intermolecular Interactions in Organic Dye Monolayers Formed by Langmuir-Blodgett Technique

• Authors: D. Bauman
• Languages of publication: EN

Abstracts

EN

Langmuir and Langmuir-Blodgett films of some organic dyes (perylene-like dyes, derivatives of 4-amino-naphthali-mide, derivatives of naphthoylene-benzi-mida-zole, azo dyes) and their mixtures with thermotropic liquid crystal or arachidic acid have been investigated. Surface pressure as a function of the mean molecular area for the Langmuir films were measured and information about organization of molecules at the air-water interface has been obtained. Absorption spectra in situ for the Langmuir films and both absorption and fluorescence spectra for Langmuir-Blodgett films were recorded. The results obtained from spectroscopic studies have led to conclusions about formation of self-aggregates of dye molecules, both in ground and excited states, at the phases interfaces.

Keywords

EN

68.18.-g; 68.47.Pe; 78.40.Me; 78.55.Kz

Discipline

• 78.55.Kz: Solid organic materials
• 68.47.Pe: Langmuir-Blodgett films on solids; polymers on surfaces; biological molecules on surfaces
• 78.40.Me: Organic compounds and polymers
• 68.18.-g: Langmuir-Blodgett films on liquids(for L-B films on solids, see 68.47.Pe)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 4
• Pages: 525-531

Dates

published

2010-04

Contributors

author

D. Bauman

• Faculty of Technical Physics, Poznań University of Technology, Nieszawska 13A, 60-965 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.117.525