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. 2021 Jul 14;4(7):6650–6658. doi: 10.1021/acsaem.1c00707

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© 2021 The Authors. Published by American Chemical Society

Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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Absorption and PL spectra of perovskite films on glass substrates for x = 0 (a) and x = 0.33 (b). The absorption spectra were recorded in transmission mode and are not corrected for reflection, which results in light interference being visible in the spectra below the band gap. XRD patterns of perovskite films on glass substrates for x = 0 (c) and x = 0.33 (d). (e) (110) peak for the two compositions. Surface SEM images of FA_0.66MA_0.34Pb(I_1–xBr_x)₃ perovskite films deposited on PTAA/ITO-coated glass substrates for x = 0 (f) and x = 0.33 (g) (scale bar 1 μm).