Additive

J_SC (mA cm^?2)

V_OC (V)

FF

η (%)

η_ave (%)

None

1.07

0.414

0.562

0.249

0.171

NH₄Cl

3.36

0.665

0.360

0.805

0.415

AsI₃

11.1

0.813

0.573

5.15

3.64

AsI₃ + NH₄Cl

13.9

0.807

0.563

6.31

5.04