Table 1 Photovoltaic parameters of hybrid organic tandem solar cells with different thicknesses of the bottom active layer (TAPC:C₇₀) and single-junction cells whose active layers are TAPC:C₇₀ or PCPDTBT:PC₇₀BM.

Single-junction cell (TAPC:C₇₀)

120

11.6

0.89

0.42

4.39

Single-junction cell (PCPDTBT:PC₇₀BM)

·

13.2

0.59

0.55

4.26

Tandem cell (transfer-fabricated)

90

8.04

1.5

0.46

5.49

120

8.48

1.46

0.51

6.26

160

7.44

1.45

0.48

5.22

200

4.45

1.4

0.32

1.99

Tandem cell (spin-coated)

120

7.9

0.51

0.45

1.82