Abstract
We studied in this work the organization of a hemicyanine dye in Langmuir monolayers and Langmuir-Blodgett (LB) films. Surface pressure measurements revealed the complex behaviour of this molecule at the air-water interface, since three different π-A compression isotherms were obtained under similar experimental conditions. The probability to get one type of isotherm as compared to the others depends on the amount of salts added to adjust the subphase pH, these salts acting as “structure breakers”. Absorption spectra of hemicyanine LB films reveals under specific experimental conditions the presence of H-aggregates into the films, molecules in aggregates being characterized by a particular orientation as compared to surrounding monomers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Protection of Metals and Physical Chemistry of Surfaces
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.