Table 7 Performance parameters of CZTS-based both without HTL and with HTL.

From: SCAPS study on the effect of various hole transport layer on highly efficient 31.86% eco-friendly CZTS based solar cell

Structure (FTO/ZnS/CZTS/Cu-based HTL/Au)

Voc (V)

Jsc (mA/cm2)

Fill factor (%)

Efficiency (%)

Without HTL

1.12

27.84

67.45

21.06

With HTL (Cu2O)

1.19

32.05

83.37

31.86

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