fig9

Figure 9. Data on solid-state perovskite synthesis using solution processing. (A) Optical and UV-illuminated images of powders synthesized with a 4:1 ratio of CsAc:PbBr₂; (B) XRD patterns as a function of CsAc:PbBr₂ ratio and the amount of DMSO used for washing; (C) PLQY stability test of solid-state CsPbBr₃ and Cs₄PbBr₆ powders compared with CsPbBr₃ nanocrystals upon air exposure^[142]. Copyright 2018 American Chemistry Society; (D) Optical images of powders under UV and ambient light with CsBr:PbBr₂ ratios varied from 1:1 to 6.5:1; (E) PLQY data as a function of CsBr:PbBr₂ ratio; (F) Comparison of the stability of powders synthesized at high temperature with SiO₂-coated materials and quantum dots^[143]. Copyright 2021 John Wiley & Sons. PLQY: Photoluminescence quantum yield; PL: photoluminescence; TE: thermal evaporation.