Fig. 1: Material properties and photovoltaic performance of optimized OSCs.
From: Mastering morphology of non-fullerene acceptors towards long-term stable organic solar cells
a The chemical structures of polymer donor and non-fullerene acceptors (NFAs). b GIWAXS images of the NFA thin films. c The decomposition details of ultraviolet–visible-near infrared (UV-vis-NIR) absorption spectra for L8BO:Y6 blends with various ratios; ordered phase indicate with A0; amorphous phase indicate with AA; higher electronic transitions indicate with A2; The term ‘arbitrary units’ abbreviated as ‘arb. units’. d The peak intensity contrast obtained from the UV-vis absorption spectra. e The melting endotherm (ΔH) of obtained from differential scanning calorimetry (DSC); black dots indicate L8BO:Y6-related ΔH; red dots indicate PTzBI-dF:L8BO:Y6-related ΔH. f Current density–voltage (J–V) characteristics of devices under simulated AM 1.5 G irradiation (100 mW cm−2). g EQE spectra (PTzBI-dF:L8BO = 1:1.2, PTzBI-dF:Y6 = 1:1.2, PTzBI-dF:L8BO:Y6 = 1:0.7:0.5).
