Table 1 Exciton diffusion constant and recombination rate constants for (BA)2(MA)n-1PbnI3n+1.

From: Long-range exciton transport and slow annihilation in two-dimensional hybrid perovskites

StructureD (cm2s−1)k1 (ns−1)k2 (10−3 cm2s−1)k3 (10−14 cm4s−1)k2/D
n = 10.06 ± 0.030.45 ± 0.0817 ± 50.30
n = 20.07 ± 0.030.23 ± 0.064.1 ± 1.00.18 ± 0.050.058
n = 30.15 ± 0.040.30 ± 0.073.5 ± 0.60.25 ± 0.060.023
n = 40.25 ± 0.060.2 ± 0.042.8 ± 0.60.11 ± 0.030.011
n = 50.34 ± 0.030.15 ± 0.031.3 ± 0.30.11 ± 0.030.0038
  1. The error bars are estimated from the sensitivity of model to the parameters. The measurement of 5 flakes for each n value are repeatable within the error range.