Experimental study and calculations of spectral-luminescence properties of cyanine dye

Abstract

Spectral-luminescence properties of monomers and dimers of cyanine dye were studied. Concentration dependence of absorption and fluorescence spectra was measured for dye solutions. Obtained data reveals formation of cyanine dimers at high concentrations. The most optimal configuration and optical properties of molecular aggregates of studied dye were predicted by using of complex analysis of spectral data and quantum-chemical calculations. Obtained results could be used for developing of systems with predicted properties.