Abstract:
It was found that the absorption spectra of thin films of cyanine molecules are considerably broader than spectra of their solutions. This is because the equilibrium solu...Show MoreMetadata
Abstract:
It was found that the absorption spectra of thin films of cyanine molecules are considerably broader than spectra of their solutions. This is because the equilibrium solutions of molecules contain all-trans isomers as major component, whereas their layers contain several monomeric (all-trans and cis isomers) and associated (dimers and J aggregates) components. Presence of molecular components in layer depends on the electron-donor ability of end groups and surface molecular concentration. The asymmetry in the electron density distribution along conjugated chain affects the equilibrium concentration of isomers in a molecular layer.
Date of Conference: 05-08 August 2013
Date Added to IEEE Xplore: 27 January 2014
ISBN Information:
Print ISSN: 1944-9399