Method for synthesis of colloidal nanoparticles
AssigneeThe Regents of the University of California
InventorsGeoffrey Fielding Strouse, Jeffrey A. Gerbec, Donny Magana
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Abstract
A method for synthesis of high quality colloidal nanoparticles using comprises a high heating rate process. Irradiation of single mode, high power, microwave is a particularly well suited technique to realize high quality semiconductor nanoparticles. The use of microwave radiation effectively automates the synthesis, and more importantly, permits the use of a continuous flow microwave reactor for commercial preparation of the high quality colloidal nanoparticles.
Claims11
A method for chemically synthesizing nanoparticles, comprising a heating process of a reaction system, which comprises precursors, passivants, or solvents in a reactor, in which the heating process uses microwave irradiation and the heating is performed such that a temperature of constituent elements is ramped at 30° C./min or higher, followed by stabilization of the reaction system at an elevated temperature, and then cooling of the reaction system to a reduced temperature at a rate of 80° C./min or higher, so that the nanoparticles are synthesized.
A method for synthesizing nanoparticles, comprising:
- preparing one or more constituent elements at or near room temperature, wherein a dielectric constant of a main constituent element is 20 or lower;
- heating the prepared constituent elements using microwave irradiation to an elevated temperature at a rate of 30° C./min or higher, in order to create a reaction mixture;
- stabilizing the reaction mixture at the elevated temperature;
- and
- cooling the stabilized reaction mixture to a reduced temperature at a rate of 80° C./min or higher, so that nanoparticles are synthesized.
Dependencies are inferred from the claim text.