Table 2 Energy loss of the devices based on Qx-1, Qx-2 and Y6 acceptors with PM6 donor.

From: Small reorganization energy acceptors enable low energy losses in non-fullerene organic solar cells

Devices

\({E}_{{{{{{\rm{g}}}}}}}^{{{{{{{\rm{pv}}}}}}}^{{{{{{\rm{a}}}}}}}}\) (eV)

EQEEL

\({{qV}}_{{{{{{\rm{OC}}}}}}}^{{{{{{\rm{SQ}}}}}}}\) (eV)

\({{qV}}_{{{{{{\rm{OC}}}}}}}^{{{{{{\rm{rad}}}}}}}\) (eV)

Eloss (eV)

ΔE1 (eV)

ΔE2 (eV)

ΔE3 (eV)

\({V}_{{{{{{\rm{OC}}}}}}}^{{{{{{\rm{Cal}}}}}}}\)(V)

PM6:Qx−1

1.420

2.53 × 10−4

1.157

1.120

0.508

0.263

0.031

0.214

0.912

PM6:Qx−2

1.422

6.60 × 10−4

1.159

1.130

0.482

0.263

0.029

0.190

0.941

PM6:Y6

1.419

1.21 × 10−4

1.157

1.091

0.561

0.262

0.066

0.233

0.858

  1. aThe optical bandgap (\({E}_{{{{{{\rm{g}}}}}}}^{{{{{{\rm{pv}}}}}}}\)) was determined from the derivatives of the EQE curve and the mean peak energy (calculated by the Supplementary equation 13).
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