Room temperature synthesis of blue and green emitting CsPbBr3 perovskite nanocrystals confined in mesoporous alumina film

Abstract

This communication reports the room temperature synthesis of stable CsPbBr₃ nanocrystals inside a wormhole mesoporous alumina thin film, showing tunable blue and green emission. The choice of suitable solvents and precursor incorporation sequence enables the generation of CsPbBr₃ nanocrystals at room temperature inside the mesoporous alumina film, whereas the tunable emissive property can be attributed to the size increment of the nanocrystals promoted by differing precursor concentrations.