Table 1 Carrier mobility, recombination lifetime and diffusion length in 1000-nm-thick NBG PSCs with and without 0.03% Cd2+ ions

From: Enhancing electron diffusion length in narrow-bandgap perovskites for efficient monolithic perovskite tandem solar cells

Species

NBG PSCs (Eg = 1.22 eV)

Mobility (cm2 V−1 s−1)

Recombination lifetime (ns)

Diffusion length (μm)

Electron

Without Cd2+

0.65

140 ± 9

0.49 ± 0.10

Electron

With Cd2+

1.98

1450 ± 160

2.72 ± 0.15

Hole

Without Cd2+

>3.25

140 ± 9

>1.08 ± 0.10

Hole

With Cd2+

>3.86

1450 ± 160

>3.80 ± 0.20

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