Features of Cyanine Dye J-Aggregates Formation on TiO2 Matrices

The features of pseudoisocyanine (PIC) dye aggregation in TiO
2
matrices prepared by different methods are shown. For all cases, a broadening of the exciton bands was found typically with Stokes shifts increasing as a result of significant disorder degree. The difference between the dye adsorption on microcrystalline and nanocrystalline TiO
2
matrices has been demonstrated. As another possibility to influence the e dye aggregation, the preparation of TiO
2
matrices from differently charged TiO
2
nanoparticles has been proposed