Efficient Air-Processed Green-Solvent Based Organic Solar Cells Fabricated via Facile Extremely Low-Temperature Induced Crystallization Approach

s exceeding 18% for binary and ∼19% for ternary AP-OSCs are achieved, utilizing a halogen-free solvent system. These findings underscore the importance of the ELTC strategy in manipulating molecular packing motifs with reduced stacking distances in the blend film, thus advancing the fabrication of efficient AP-OSCs.