Process for preparing a quantum dot, a quantum dot prepared therefrom, and an electronic device including the same

Abstract

A process for preparing a quantum dot of a core-shell structure including obtaining a first mixture including first precursor including a first metal, a ligand compound, and a solvent; adding a second precursor and a particle including a first semiconductor nanocrystal to the first mixture to obtain a second mixture; and heating the second mixture up to a reaction temperature and performing a reaction between the first precursor and the second precursor to form a layer of a shell including a crystalline or amorphous material, during formation of the layer of the shell or after formation of the layer of the shell, wherein the process includes adding an organic solution including an ammonium fluorinated salt including a solid salt having a melting point of greater than or equal to about 110° C. to the second mixture.