Table 3 Electrical properties for different BSF layers in the proposed solar cell.

Thickness (nm)

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

Bandgap (eV)

3.1

1.3

3.2

2.2

2.17

1.74

2.96

1.5

Electron affinity (eV)

2.1

4.2

2.2

3.4

3.2

3.87

2.3

4.2

Dielectric permittivity (relative)

6.5

12.5

10

8

7.11

9

9

7.11

Effective density of states Ec (cm⁻³)

1.92 × 10¹⁸

1.0 × 10¹⁹

3.2 × 10¹⁶

9.2 × 10¹⁹

2.02 × 10¹⁷

2.2 × 10¹⁸

2 × 10²¹

2.2 × 10¹⁸

Effective density of states Ev (cm⁻³)

2.24 × 10¹⁸

4.13 × 10¹⁸

2.5 × 10¹⁷

5 × 10²⁰

1.1 × 10¹⁹

1.8 × 10¹⁹

2 × 10²¹

1.8 × 10¹⁹

Electron mobility (cm²/Vs)

480

25

30

150

200

11

1

1

Hole mobility (cm²/Vs)

43

100

2.5

100

80

11

40

10

Acceptor concentration, N_A (cm⁻³)

4.3 × 10¹⁶

3 × 10¹⁸

1 × 10¹⁹

1 × 10¹⁸

1 × 10¹⁹

1 × 10¹⁹

1 × 10¹⁸

1 × 10¹⁹

Donor concentration, N_D (cm⁻³)

0

0

0

0

0

0

0

0

Defect density, N_t (cm⁻³)

10¹⁴

10¹⁴

10¹⁴

10¹⁴

10¹⁴

10¹⁴

10¹⁴

10¹⁴