Table 2 Photovoltaic parameters of PSCs with different hole transporting layer. Photomasks (0.2 × 0.5 cm2) made of thin metal sheet were applied before all measurements.

From: Spiro-Phenylpyrazole/Fluorene as Hole-Transporting Material for Perovskite Solar Cells

Type of BL

JSC (mA/cm2)

VOC (mV)

FF

PCE (%)

Rs (Ω)

HI

Best performing

Spiro-OMeTAD

19.20

1.041

0.742

14.84

32.47

0.04

WY-1

19.48

1.053

0.691

14.19

53.52

0.07

WY-2

18.50

1.057

0.696

13.60

63.10

0.08

WY-3

18.27

1.047

0.674

12.89

85.45

0.05

Average*

Spiro-OMeTAD

19.14 ± 0.46

1.046 ± 0.007

0.705 ± 0.022

14.13 ± 0.57

47.96 ± 11.86

0.09 ± 0.07

WY-1

19.38 ± 0.33

1.046 ± 0.005

0.662 ± 0.025

13.36 ± 0.58

51.64 ± 13.09

0.09 ± 0.04

WY-2

18.58 ± 0.15

1.055 ± 0.003

0.560 ± 0.059

10.96 ± 1.17

89.89 ± 12.57

0.39 ± 0.13

WY-3

18.50 ± 0.65

1.035 ± 0.003

0.556 ± 0.061

10.32 ± 1.72

100.10 ± 34.37

0.35 ± 0.16

  1. The hysteresis index (HI) is defined as (Pmax(forward scan)/Pmax(backward scan))−1, which Pmax is the maximum power in I-V measurement.
  2. *These values were obtained from 6–8 devices.
Back to article page