Luminescence properties of the J-aggregate of cyanine dyes in multilayer assemblies

Multilayer assemblies incorporating the J-aggregate of 3,3'-disulfopropyl-5 ,5'-dichloro-thiacyanine dye were fabricated up to 50 layers by the alterna te adsorption technique to examine their luminescence properties. Fluoresce nce spectra as well as fluorescence lifetime of multilayer assemblies remar kably depend on the number of layers. The result is interpreted in terms of the interaction between dye lavers within a limited distance, as well as t he luminescence reabsorption effect. (C) 2000 Elsevier Science B.V. All rig hts reserved.