Fig. 2: Interactions between perovskite and DMAA.
From: High performance flexible Sn-Pb mixed perovskite solar cells enabled by a crosslinking additive
a Schematic illustration of the interaction between DMAA and perovskite. b FTIR spectra of DMAA, SnF2 and DMAA-SnF2 after thermal annealing. XPS spectra of (c) Pb 4 f, (d) I 3d, and (e) Sn 3d for the perovskite films. XPS spectra of perovskite film without (f) and with (g) DMAA.
