fig3

Figure 3. (A) Normalized areas of the MAPbI₃ {110} peak and PbI₂ {001} peak. Reprinted with permission from ref.^[35]. Copyright 2017 Royal Society of Chemistry. (B) The optical absorption spectra of SnO_x layers synthesized at various temperatures using either O₃ or H₂O as oxygen source. (C) Images depicting SnO_x layers fabricated at different temperatures utilizing either O₃ or H₂O as oxygen source on quartz substrates. Reprinted with permission from ref.^[37]. Copyright 2015 Wiley. (D) The growth per cycle plotted against the pulse time of oxidants, as determined from ellipsometry measurements. Reprinted with permission from ref.^[38]. Copyright 2018 Wiley.