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. Author manuscript; available in PMC: 2020 Sep 2.
Published in final edited form as: Chem Sci. 2020 Mar 20;11(15):3986–3995. doi: 10.1039/d0sc00738b

Fig. 1.

Fig. 1

Schematic representation of the Cs4PbBr6 → CsPbBr3 NC transformation induced by PMAO. Oleylamine species from the NC surface react with the cyclic anhydride rings of PMAO, forming polysuccinamic acid. The removal of oleylamine-based and oleate ligands destabilizes the NC surface, and the formation of polysuccinamic acid increases the acidity of the medium, triggering the Cs4PbBr6 → CsPbBr3 transformation (see the text for the chemical equation). The resulting CsPbBr3 NCs are stabilized by the polysuccinamic acid in place of the original ligands.