#Core shell quantum dot full

However, although this method showed slight improvement in terms of particle uniformity, it was confirmed that the characteristics of quantum efficiency and full width at half maximum are insufficient compared to Cd-based quantum dot particles.Īs another example, when preparing the core of InZnP-based quantum dot particles, it has been proposed to control the growth of core particles using a zinc precursor, further heat-treat the zinc precursor to form a zinc oxo cluster, and use this to control the size of the core.

Therefore, in order to control the size distribution of InP-based quantum dot particles, various studies are being conducted to control the growth rate of the core particles of InP-based quantum dot particles by changing the reactivity of organometallic phosphorus compounds.įor example, researchers attempted to isolate the stages of nuclear formation and growth by using precursors of organometallic phosphorus (P) compounds, such as tris(trimethylgermyl)phosphine and tris(pyrazolyl)phosphane, which are less reactive, instead of tris(trimethylsilyl)phosphine having high reactivity generally used in the prior art. The Ostwald ripening phenomenon is a theory explaining the principle that particles dissolved in the form of an emulsion grow, and refers to a phenomenon in which, when the size of particles in the emulsion is varied, relatively small particles continue to become smaller, and larger particles become larger, and thus small particles eventually disappear. Most researchers believe that the particle size distribution may be broadened by the Ostwald ripening phenomenon as organometallic phosphorus compounds are consumed rapidly during the growth stage of InP-based core. Therefore, many studies are being conducted to replace cadmium-based quantum dot particles, and a representative example of this is indium phosphide-based (hereinafter, InP-based) quantum dot particles. However, currently, quantum dots in the form of cadmium are subject to environmental regulations due to their toxicity, and accordingly, their use has become impossible. In general, quantum dot particles in the form of cadmium have a very narrow particle size distribution, and thus have the advantage of very high color reproducibility and luminance when applied to a display device. (b) Background Artįor quantum dot particles, the particle size distribution has a great influence on the optical properties, and as the size distribution becomes wider, the quantum efficiency is decreased and the full width at half maximum becomes wider. The present invention relates to a method of preparing a core-shell structured quantum dot particle, a core-shell structured quantum dot particle prepared thereby, a population of the core-shell structured quantum dot particles, and a display device comprising the same. 18, 2021, the entire content of which is incorporated herein by reference. § 119(a) the benefit of Korean Patent Application No. Patent Description CROSS-REFERENCE TO RELATED APPLICATION The applicant for METHOD OF MANUFACTURING A CORE-SHELL STRUCTURED QUANTUM DOT PARTICLE, CORE-SHELL STRUCTURED QUANTUM DOT PARTICLE MANUFACTURED THEREBY, POPULATION OF THE CORE-SHELL STRUCTURED QUANTUM DOT PARTICLES, AND DISPLAY DEVICE INCLUDING THE SAME patent is This invention was filed in the category of Was filed with the USPTO on Friday, January 14, 2022. The METHOD OF MANUFACTURING A CORE-SHELL STRUCTURED QUANTUM DOT PARTICLE, CORE-SHELL STRUCTURED QUANTUM DOT PARTICLE MANUFACTURED THEREBY, POPULATION OF THE CORE-SHELL STRUCTURED QUANTUM DOT PARTICLES, AND DISPLAY DEVICE INCLUDING THE SAME patent Patent Application Number is a unique ID to identify the METHOD OF MANUFACTURING A CORE-SHELL STRUCTURED QUANTUM DOT PARTICLE, CORE-SHELL STRUCTURED QUANTUM DOT PARTICLE MANUFACTURED THEREBY, POPULATION OF THE CORE-SHELL STRUCTURED QUANTUM DOT PARTICLES, AND DISPLAY DEVICE INCLUDING THE SAME mark in USPTO. – by the United States Patent and Trademark Office (USPTO). The METHOD OF MANUFACTURING A CORE-SHELL STRUCTURED QUANTUM DOT PARTICLE, CORE-SHELL STRUCTURED QUANTUM DOT PARTICLE MANUFACTURED THEREBY, POPULATION OF THE CORE-SHELL STRUCTURED QUANTUM DOT PARTICLES, AND DISPLAY DEVICE INCLUDING THE SAME patent was assigned a METHOD OF MANUFACTURING A CORE-SHELL STRUCTURED QUANTUM DOT PARTICLE, CORE-SHELL STRUCTURED QUANTUM DOT PARTICLE MANUFACTURED THEREBY, POPULATION OF THE CORE-SHELL STRUCTURED QUANTUM DOT PARTICLES, AND DISPLAY DEVICE INCLUDING THE SAME - Patent Information By Seung Mo HONG

Core shell quantum dot