Peculiarities of concentration quenching of fluorescence of dye molecules adsorbed on a silicon dioxide heterogeneous surface

This paper investigates theoretically the dependence of the fluorescence quantum yield and anisotropy on the adsorbed molecules, based on the Foerster theory of nonradiative energy transfer (NET). It is shown that the fractal properties of the distribution of molecules in porous glass were evident in NET. The experimental data of the concentration quenching of fluorescence for six dyes are used to obtain the fractional dimensions and fluorescence quantum yields for them in all the orientational states.