Table 1 Photovoltaic parameters of the CsPbBr3-xI x solar cells (x varies between 0, 0.1, 0.2, and 0.3 in molar ratio) with spiro-OMeTAD as the HTM.

From: Tunable Open Circuit Voltage by Engineering Inorganic Cesium Lead Bromide/Iodide Perovskite Solar Cells

Perovskite

Voc (V)

Jsc (mA/cm2)

FF

PCE (%)

Jsc[Cal.] (mA/cm2)

Rsh, kΩ/cm2

Rs, Ω/cm2

HI

CsPbBr3

1.16

5.25

0.49

2.97

5.85

220.3

2711

0.11

CsPbBr2.9I0.1

1.13

5.54

0.64

3.98

6.83

294.5

1674

0.04

CsPbBr2.8I0.2

1.06

5.58

0.65

3.83

6.78

673.0

1724

0.0002

CsPbBr2.7I0.3

1.12

5.17

0.47

2.73

6.44

158.5

5194

0.08

  1. The photocurrent calculated from the integration of the EQE curves was also added. Hysteresis index (HI) was calculated by equation (2).
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