Table 2. Photovoltaic Parameters Extracted from the Current–Voltage Characterization Measurements of the PSCs Fabricated with Different Fullerene Adducts.

fullerene	PCEavg±SD [%]	FFavg±SD [%]	VOCavg±SD [V]	JSCavg±SD [mA cm–2]	SPO [%]
NHAc-ICMA	(13.61) 10.71 ± 2.27	(68.14) 60.07 ± 5.55	(1.00) 0.95 ± 0.04	(20.07) 18.59 ± 0.87	9.97
NH2-ICMA	(10.12) 6.99 ± 1.86	(66.10) 53.92 ± 7.08	(0.90) 0.88 ± 0.10	(17.03) 14.58 ± 1.59	2.75
NHAc-Me-ICMA	(11.98) 7.64 ± 2.51	(60.01) 47 ± 7.83	(1.02) 0.94 ± 0.06	(19.54) 16.80 ± 2.07	7.75
PCBM	(13.07) 9.27 ± 2.27	(72.15) 58.0 ± 8.60	(1.03) 0.97 ± 0.05	(17.63) 16.02 ± 1.56	11.86