The Reactivity of CsPbBr<sub>3</sub> Nanocrystals toward Acid/Base Ligands
F. Zaccaria, Baowei Zhang, Luca Goldoni, Muhammad Imran, Juliette Zito, Bas van Beek, Simone Lauciello, Luca De Trizio, Liberato Manna, Ivan Infante
Abstract
9.9 and 2, respectively) interact with surface-bound DDA molecules, causing their displacement as DDABr in various amounts, which can be as high as 40% (achieved with oleylphosphonic acid). Despite the stripping of DDA ligands, the optical properties of the nanocrystals, as well as structure and morphology, remain substantially unaffected, empirically demonstrating the defect tolerance characterizing such materials. Our study provides not only a clear overview on the interaction between perovskite nanocrystals and neutral ligands but also presents an effective ligand stripping strategy.
Topics & Concepts
NanocrystalLigand (biochemistry)Reactivity (psychology)Perovskite (structure)BromideBase (topology)Materials scienceMoleculeChemistryInorganic chemistryCrystallographyNanotechnologyOrganic chemistryReceptorMathematicsAlternative medicineMathematical analysisMedicineBiochemistryPathologyPerovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyConducting polymers and applications