Table 1 J–V parameters of CsPb0.6Sn0.4I3 perovskite solar cells.

From: Sub-1.4eV bandgap inorganic perovskite solar cells with long-term stability

Sample

JSC (mA cm−2)

VOC (V)

FF

PCE (%)

N-CsPb0.6Sn0.4I3

3.47 ± 0.36

0.416 ± 0.018

0.641 ± 0.017

0.92 ± 0.14

G-CsPb0.6Sn0.4I3

24.07 ± 1.60

0.457 ± 0.034

0.517 ± 0.052

5.68 ± 0.55

G-S-CsPb0.6Sn0.4I3

24.57 ± 1.30

0.735 ± 0.137

0.624 ± 0.064

11.28 ± 2.09

G-S-CsPb0.6Sn0.4I3 (R)a

25.87

0.774

0.667

13.37

G-S-CsPb0.6Sn0.4I3 (F)a

26.11

0.749

0.583

11.39

  1. Photovoltaic performance parameters of CsPb0.6Sn0.4I3 perovskite solar cells without any functionalization (N-CsPb0.6Sn0.4I3), with only grain-boundary functionalization (G-CsPb0.6Sn0.4I3), and with both grain-boundary and surface functionalization (G-S-CsPb0.6Sn0.4I3). The parameters are obtained based on Fig. 5b–d
  2. aChampion cell; R = reverse scan and F = forward scan
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