Table 1 Photovoltaic parameters of devices based on different acceptors.

From: Asymmetric electron acceptor enables highly luminescent organic solar cells with certified efficiency over 18%

Active layer

Voc (V)

Jsc (mA cm−2)

Jcal (mA cm−2)a

FF

PCE (%)b

PM6:Y6

0.832 (0.832 ± 0.003)

26.04 (25.93 ± 0.24)

25.70

0.740 (0.728 ± 0.010)

16.07 (15.69 ± 0.22)

PM6:BO-4F

0.833 (0.832 ± 0.002)

26.04 (26.04 ± 0.15)

25.85

0.772 (0.768 ± 0.003)

16.73 (16.62 ± 0.08)

PM6:BO-4Cl

0.841 (0.841 ± 0.002)

26.03 (25.87 ± 0.20)

25.82

0.794 (0.792 ± 0.003)

17.43 (17.28 ± 0.10)

PM6:BO-5Cl

0.958 (0.957 ± 0.001)

22.57 (22.47 ± 0.08)

21.92

0.701 (0.695 ± 0.002)

15.02 (14.88 ± 0.07)

PM6:BO-6Cl

0.944 (0.944 ± 0.001)

23.22 (23.09 ± 0.19)

22.68

0.729 (0.725 ± 0.004)

15.94 (15.77 ± 0.12)

PM6:BO-4Cl:BO-5Cl

0.874 (0.872 ± 0.002)

26.93 (26.65 ± 0.27)

26.63

0.788 (0.784 ± 0.005)

18.56 (18.24 ± 0.16)

PM6:BO-4Cl:BO-5Cl

0.865

26.88

–

0.782

18.2c

  1. aIntegrated current densities from EQE curves.
  2. bAverage PCEs from 15 devices.
  3. cCertified by National Institute of Metrology (NIM), China.
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