CsPbBr<sub>3</sub>/ZnS Core/Shell Type Nanocrystals for Enhancing Luminescence Lifetime and Water Stability
Vikash Kumar Ravi, Sajid Saikia, Shivam Yadav, Vaibhav Nawale, Angshuman Nag
Abstract
Core/shell (pseudo type-II) CsPbBr3/ZnS nanocrystals are prepared, showing ∼15 times enhancement in average photoluminescence lifetime compared to CsPbBr3 nanocrystals. The nanocrystal films (without external encapsulation) retain intense luminescence even after being dipped in water for more than 2 days.
Topics & Concepts
NanocrystalLuminescencePhotoluminescenceMaterials scienceNanotechnologyShell (structure)OptoelectronicsChemical engineeringComposite materialEngineeringPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesOptical properties and cooling technologies in crystalline materials