fig5
Figure 5. (A) Schematics for DMAI additive induced CsPbI3 perovskite formation and the device stability based on Cs-1.5DMAI perovskite with and without DMAI residues. Copyright from Ref[44]. (B) Schematics of hydrogen bonding-assisted CsPbI3 perovskite crystallization and the measured J-V curves of dopant-free P3HT-based CsPbI3 PSCs. Copyright from Ref[21]. (C) Schematic illustration of DMAI-assisted CsPbI3 perovskite formation and time-resolved photoluminescence decay spectra of tetragonal, coexistence phase and orthorhombic perovskite films. Copyright from Ref[72].