Fig. 1 | Nature Communications

Fig. 1

From: Trifluoroacetate induced small-grained CsPbBr3 perovskite films result in efficient and stable light-emitting devices

Fig. 1

FTIR and XRD study of the CsBr- and CsTFA-derived CsPbBr3 perovskites. a Schematic presentation of the film fabrication procedure. Route (i) employs commonly used precursors CsBr and PbBr2, while the route (ii) employs CsTFA in place of CsBr. b FTIR of DMSO (liquid), CsBr•PbBr2•DMSO (powder), CsTFA•PbBr2•DMSO (powder), and CsTFA•DMSO (powder). c XRD patterns of CsPbBr3 films deposited on PEDOT:PSS coated ITO glass from CsBr(1.7) and CsTFA(1.7) without annealing. d XRD patterns of CsPbBr3 films deposited on PEDOT:PSS coated ITO glass from CsBr(1.7) and CsTFA(1.7)

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