Time-resolved luminescence spectra of J-aggregates of quino-2-monomethine cyanine containing real exciton traps are studied. It is found that free excitons are more efficiently quenched by the traps than the self-trapped ones. The structures of quino-2-monomethine cyanine J-aggregates in the dimethylformamide-water solution and Langmuir-Blodgett film are analyzed, and the applicability of the adiabatic theory of exciton self-trapping to the interpretation of experimental data are discussed.
展开▼
