Figure 5: Effective lifetime (τeff) in polycrystalline films.
From: Low surface recombination velocity in solution-grown CH3NH3PbBr3 perovskite single crystal
τeff are plotted as function of the grain size for various surface recombination velocity. The black dashed line represents the measured bulk lifetime. The red-dash line is effective lifetime as function of grain size calculated according to the SRV determined in the perovskite single crystals.
