. 2020 Jun 25;5(8):2498–2504. doi: 10.1021/acsenergylett.0c00839

Table 1. Device Performance Parameters from the Reverse Scans of the FA_0.7Cs_0.3Pb(I_0.9Br_0.1)₃ Solar Cells with Different Amounts of Excess PbI₂ with Respect to the Control.

	V_OC (V)	J_SC (mA/cm²)	FF (%)	PCE (%)
control	1.08	–20.4	70.4	15.5
5%	1.06	–23.0	74.6	18.1
10%	1.12	–22.8	70.1	17.8
20%	1.12	–20.9	68.7	16.1

Table 1. Device Performance Parameters from the Reverse Scans of the FA0.7Cs0.3Pb(I0.9Br0.1)3 Solar Cells with Different Amounts of Excess PbI2 with Respect to the Control.