Surfactant-Dependent Bulk Scale Mechanochemical Synthesis of CsPbBr₃ Nanocrystals for Plastic Scintillator-Based X-ray Imaging.

ABSTRACT: We report a facile, solvent-free surfactant-dependent mechanochemical synthesis of highly luminescent CsPbBr₃ nanocrystals (NCs) and study their scintillation properties. A small amount of surfactant oleylamine (OAM) plays an important role in the two-step ball milling method to control the size and emission properties of the NCs. The solid-state synthesized perovskite NCs exhibit a high photoluminescence quantum yield (PLQY) of up to 88% with excellent stability. CsPbBr₃ NCs capped with different amounts of surfactant were dispersed in toluene and mixed with polymethyl methacrylate (PMMA) polymer and cast into scintillator discs. With increasing concentration of OAM during synthesis, the PL yield of CsPbBr₃/PMMA nanocomposite was increased, which is attrib

SUBMITTER: Ghosh J 

PROVIDER: S-EPMC10463220 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature