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Table 1 Electrochemical parameters made from BGr0, BGr0.5, BGr1, BGr1.5, BGr2, Gr, and Pt CEs; and the photovoltaic properties of DSSCs based on the above CEs

From: Bi5FeTi3O15 nanofibers/graphene nanocomposites as an effective counter electrode for dye-sensitized solar cells

CEs

V oc (V)

J sc (mA cm−2)

FF

η%

R s (Ω)

R ct (Ω)

IPCE (%)

BGr0

0.364

3.80

0.159

0.22

8.77

8.3

BGr0.5

0.770

8.51

0.386

2.53

8.70

6888.46

21.1

BGr1

0.720

15.79

0.437

4.97

8.43

400

39.4

BGr1.5

0.721

20.43

0.521

7.68

8.40

3.86

40.3

BGr2

0.740

21.56

0.599

9.56

7.81

0.82

42.3

Gr

0.744

22.78

0.663

11.23

8.25

0.74

44.8

Pt

0.780

24.02

0.562

12.21

7.06

0.73

48.4

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