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CdSe - CdSe - Method for preparing core-shell structure comprising CdSe core based on glyme solvent and the core-shell structure prepared therefrom
CdSe - CdSe - Method for preparing core-shell structure comprising CdSe core based on glyme solvent and the core-shell structure prepared therefrom
The present invention relates to a method of producing a core-shell structure containing CdSe core based on a glyme solvent; and to a core-shell structure containing CdSe core produced thereby. Specifically, the method comprises the steps of: a) dissolving a Cd precursor and a Zn precursor in a glyme solvent, and stirring the same; b) adding 1-octadecene and oleic acid in the solution obtained in the step a), heating the resulting solution for a first time, and stirring the same; c) heating the solution obtained in the step b) for a second time; and d) dissolving Se powder in trioctylphosphine (TOP) solvent to produce a Se-TOP solution, dissolving S powder in TOP solvent to produce a S-TOP solution, and adding the Se-TOP solution and the S-TOP solution into the solution obtained in the step c) in a dropwise fashion. According to the present invention, the core-shell structure containing CdSe core is produced through an uncomplicated and economical process, and the produced structure has high CdSe content, uniform size, and high stability, and thus can be advantageously used by being coated on flexible plastic substrates in optical devices or semiconductor devices.
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