Features of Cyanine Dye J-Aggregates Formation on TiO2 Matrices
semanticscholar(2022)
Abstract
The features of pseudoisocyanine (PIC) dye aggregation in TiO2 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 TiO2 matrices has been demonstrated. As another possibility to influence the e dye aggregation, the preparation of TiO2 matrices from differently charged TiO2 nanoparticles has been proposed
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