Summary of solar cell parameters at the structure of ITO/PEDOT:PSS/PTB7:PC₇₁BM:PbS QDs (x wt%)/PFN/Al and ITO/PEDOT:PSS/PTB7:PC₇₁BM/PbS QDs/PFN/Al.

Device	PCE (%)	J sc (mA cm−2)	V oc (V)	FF (%)
Control	7.03	13.83	0.74	68.70
1% PbS doped	7.21	14.08	0.74	69.20
3% PbS doped	7.36	14.29	0.74	69.59
5% PbS doped	7.87	14.81	0.75	70.85
7% PbS doped	7.20	14.27	0.74	68.20
10% PbS doped	6.70	13.96	0.75	64.02
Active layer/PbS	5.41	12.30	0.76	57.89