Room-temperature and gram-scale synthesis of CsPbX3 (X = Cl, Br, I) perovskite nanocrystals with 50–85% photoluminescence quantum yields

Abstract

All inorganic CsPbX₃ (X = Cl, Br, I) perovskite nanocrystals (PNCs) with 50–85% photoluminescence quantum yields and tunable emission in the range of 440–682 nm have been successfully synthesized at room temperature in open air. This facile strategy enables us to prepare gram-scale CsPbBr₃ NCs with a PLQY approaching 80%.