Fig. 3
From: Stable High-Efficiency Two-Dimensional Perovskite Solar Cells Via Bromine Incorporation
a Absorption spectra, b steady-state PL spectra, and c time-resolved PL curves of BA2MA4Pb5I16-10xBr10x film with various amounts of PbBr2 spin-coated on glass substrates. d Dark current-voltage measurements of PVSCs based on the BA2MA4Pb5I16-10xBr10x film with various amounts of PbBr2