Two polymethine dyes of different types (cyanine and squaraine) which possess hydrophobic properties have been used as exciton traps (energy acceptor) for amphi-PIC J-aggregates. Both dyes are found to interact with J ...

Novel red-shifted band has been observed in luminescence spectra of a cyanine dye embedded into nanoporous SiO₂ matrix. That band is concentration dependent and disappears at cooling to low temperature. It has been ...

The influence of anionic surfactant, sodium dodecyl sulphate (SDS), and cationic one, cetylpyridinium bromide (CPB), on aggregation behavior of squaraine dye Sq-2Me has been studied in aqueous solutions by optical spectroscopy. ...

The experimental results concerning the efficiency of exciton migration under the exciton selective excitation within the amphi-PIC -J-aggregate absorption band at different temperatures are presented. To detect the exciton ...

It is shown on the basis of an analysis of the J-band shape, luminescence spectra, and luminescence decay that self-trapping of excitons takes place in J-aggregates with strong topological disorder. A self-trapping barrier ...

In the present letter, we have report the changing optical properties of pseudoisocyanine J-aggregates formed in electrolyte aqueous solution under agglomeration. The more pronounced changes occur in the case of the ...

The metal enhanced fluorescence of thiacyanine dye monomers in polymer films has been studied. To control the distance between dye molecules and silver nanoparticles a polymer spacer has been used. The spacer thickness has ...

Molecular aggregates called J-aggregates are excitonic systems which could be used as optical antennas. Preliminary experiments demonstrated an effective resonance energy transfer from J-aggregates to other dyes playing ...