Dope ratio of PCBM (wt%)

V_oc (V)

J_sc (mA/cm²)

Fill factor (%)

PCE (%)

0.00

0.25

0.50

0.75

1.00

1.25

1.50

0.82

0.82

0.84

0.93

0.99

0.89

0.84

15.63

15.63

16.56

17.11

18.06

17.15

17.75

70.29

71.60

70.69

64.14

66.50

64.85

63.06

9.01

9.22

9.77

10.19

11.89

9.94

9.42