Extended Data Fig. 10: Characterization of Sn-based perovskites with various additives.
From: Additive treatment yields high-performance lead-free perovskite light-emitting diodes
a-c, Contour plot of in situ PL spectra of FA0.9Cs0.1SnI3 perovskites with TMAC (a), TEAC (b) and TBAC (c) as additives during the spin-coating process. Inset, the chemical structures of the additives. d-f, AFM images of FA0.9Cs0.1SnI3 perovskites with TMAC (d), TEAC (e) and TBAC (f) as additives. Scale bar, 1 μm. g, Excitation-intensity-dependent PLQE.
