Table 3 Total energy losses and detailed energy losses of the optimized devices

From: Asymmetric small-molecule acceptor enables suppressed electron-vibration coupling and minimized driving force for organic solar cells

Active layer

Eg [eV]

VOC [V]

Elossa [eV]

ΔE1 [eV]

ΔE2 [eV]

ΔE3 [eV]

EQEEL [×104]

PM6:BTP-DC11

1.366

0.851

0.515

0.257

0.035

0.223

1.84

PM6:BTP-DTBO

1.428

0.878

0.550

0.262

0.055

0.233

1.22

PM6:BTP-DBO

1.457

0.900

0.557

0.265

0.073

0.219

2.27

PM6:BTP-C11-TBO

1.374

0.856

0.518

0.259

0.044

0.215

2.51

PM6:BTP-BO-TBO

1.392

0.907

0.485

0.260

0.027

0.198

4.75

  1. aThe calculation processes of Eloss are shown in the “Methods” section and Supplementary Figs. 1718.