Collection probability p_c of the fluorescent collector geometry with solar cells mounted at the bottom of the collector (Fig. 1c). The coverage fraction f is kept constant at f = 0.01 and the normalized collector length l/d is varied. All data feature a transition between two asymptotic situations at low and high ratios l/d. Only the systems with a photonic band pass (PBS, full symbols) achieve p_c > 0.5 at low ratios of l/d. For these systems, the maximum p_c as well as the transition from the small-scale to the large-scale behaviour is strongly dependent on the non-radiative recombination probability p_nr. The systems without PBS (open symbols) have already a relatively low p_c < 20% even in the more favorable case of l/d < 10. Accordingly, the sensitivity to the introduction of non-radiative recombination in the dye (p_nr > 0) is less pronounced.