Microscopic diffusion model applied to C<inf>60</inf> fullerene fractals in carbon disulphide solution

A microscopic diffusion model calculating the o-Ps lifetimes in C60 aggregated solutions in CS2 solvent was adopted. An excellent agreement between the calculated and experimental o-Ps lifetimes in the aggregated solutions reflected on important quantitative parameters of the system. These observations followed the concentration dependent structure attribution to the C60 aggregates obtained from a microscopic picture of the Ps surroundings in the C60 solution and from TEM. Existence of several competing mechanisms during solubilization were observed and an increasing interaction between the C60 molecules resulted in a displacement of equilibrium towards the solid state.