Size-tunable and stable cesium lead-bromide perovskite nanocubes with near-unity photoluminescence quantum yield.

ABSTRACT: Stable cesium lead bromide perovskite nanocrystals (NCs) showing a near-unity photoluminescence quantum yield (PLQY), narrow emission profile, and tunable fluorescence peak in the green region can be considered the ideal class of nanomaterials for optoelectronic applications. However, a general route for ensuring the desired features of the perovskite NCs is still missing. In this paper, we propose a synthetic protocol for obtaining near-unity PLQY perovskite nanocubes, ensuring their size control and, consequently, a narrow and intense emission through the modification of the reaction temperature and the suitable combination ratio of the perovskite constituting elements. The peculiarity of this protocol is represented by the dissolution of the lead precursor (PbBr₂) as a conseq

SUBMITTER: Grisorio R 

PROVIDER: S-EPMC9418815 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature