Performance of the non-fitting methods (polar approach in black, moments method in blue and mf_D in red) as a function of the number of temporal channels for N = 200 photons acquired with time gated system.

Three fractions of interacting donor f_D are considered: 0.25 (A), 0.5 (B) and 0.75 (C). We have indicated the fraction of interacting donor and the mf_D in the left part; the donor lifetime in presence of the acceptor τ_F and the mean lifetime <τ> are in the right part. In all graphs, the dotted lines represent the simulated values and the markers with error bars represent the corresponding medians and interquartile ranges of 4096 simulated histograms whose parameters are: τ_F = 1.5 ns and τ_D = 2.5 ns.