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Figure 1

From: Microstructural Evolution of Hybrid Perovskites Promoted by Chlorine and its Impact on the Performance of Solar Cell

Figure 1

Grain orientations and remaining Cl with different annealing times at 120 °C. (a) X-ray diffraction, (b) relative integrated intensities of (220), (004), and (211) peaks, and (c) XRF spectra of Cl from the perovskite films. Precursor compositions are PbI2:MAI:MACl = 1:1:0.4 (40 mol. % MACl) or PbI2:MAI:MACl = 1:1:0 (0 mol. % MACl).

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