We turned to a soft description procedure, the one not really yielding exact parameters for analysis while still providing insight into processes influencing luminescence decay. Free-form distribution analysis proved itself effective in biophysics, where systems imply interaction range distributions. . Lifetime distributions also are known to handle consequences of aggregation processes. We attempted fitting our systems to different combinations of Lorentz and Gauss distributions of exponential decays with low success, to find out that two Gamma-distributions [Equation ] of radiative constants describe our system in a well-acceptable manner without putting too much restraints or pushing towards restrictive assumptions on organizational properties.