Bidentate aliphatic quaternary ammonium ligand-stabilized CsPbBr3 perovskite nanocrystals with high PLQY (92.3%) and superior stability

A new bidentate ligand strategy was employed to prepare CsPbBr 3 NCs, where the DTDB ligand can be tightly anchored to the surface of the NCs with the double N + sites. The as-synthesized DTDB-CsPbBr 3 NCs show superior purification endurance and thermal stability.