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.
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