Table 1. Absorptance and photoluminescence quantum efficiency (PLQE) with different [C₈-NH₂]/ [Pb]. 70% relative humidity condition at 25°C. Increase in Octylamine concentration results in better FAPbBr₃ PeNCs surface passivation with Octylamine, showing high absorptance and high PLQE. Higher than 1.56 for [C₈-NH₂]/[Pb] is good for both Absorptance and PLQE

[C8-NH2]/[Pb]	Absorptance (%)	PLQE (%)
0.78	59.5	88.5
1.56	90.9	92.8
2.33	91.8	91.2
3.11	90.7	91.2