fig4
Figure 4. (A) Conventional OSC structure with HTLs, (B) Energy-level alignment among ITO, HTLs, active layer, ETL, and electrodes. (C) J-V curves of champion PM6:BTP-eC9 devices with HTLs, (D) EQE spectra and integrated JSC of corresponding champion devices, (E) dark J-V curves for binary devices, (F) average photovoltaic performance of 16 individual PM6:BTP-eC9-based devices with different HTLs, (G) universality chart of PEDOT and SAMs, and (H) unencapsulated device stability in N₂ (25% RH, 25 °C).
