Fig. 2. (a) XRD spectra of the Cs_0.22FA_0.78PbI₃ perovskite films fabricated using DMSO and varying concentrations of NMP. (b) XRD peak position (black circles) and FWHM (red circles) of the (100) plane direction of the Cs_0.22FA_0.78PbI₃ perovskites. (c) UV–vis absorption spectra of the Cs_0.22FA_0.78PbI₃ perovskite films fabricated using DMSO and varying concentrations of NMP. (d) Bandgap energy derived from Tauc plots of the UV–vis absorption spectra.

Applied Science and Convergence Technology 2024;33:156~159 https://doi.org/10.5757/ASCT.2024.33.6.156

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