Green-Emitting Lead-Free Cs<sub>4</sub>SnBr<sub>6</sub> Zero-Dimensional Perovskite Nanocrystals with Improved Air Stability
Rossella Chiara, Y.Ö. Çiftçi, Valentin I. E. Queloz, Mohammad Khaja Nazeeruddin, Giulia Grancini, Lorenzo Malavasi
Abstract
. Samples are made of crystals with an average size of ∼20 nm with green emission centered around 530 nm. Interestingly, both colloidal suspensions and thin films show an enhanced air stability with respect to that of any other previous tin-based nanocrystalline system, with emission persisting for tens of hours under laboratory air.
Topics & Concepts
NanocrystalNanocrystalline materialPerovskite (structure)Materials scienceTinColloidNanotechnologyChemical engineeringMetallurgyEngineeringPerovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyQuantum Dots Synthesis And Properties