Patent ID: 7731932
Filing Date: 2010-06-08
Classification: B82Y,H01L,Y02E,Y10S,Y10T

Abstract:
1. A method of processing nanocrystals, comprising: providing the nanocrystals in a first solvent in which the nanocrystals are soluble, the nanocrystals having a total amount of surfactant associated therewith, the total amount of surfactant including an amount of free surfactant and an amount of nanocrystal bound surfactant; precipitating the nanocrystals by adding a second solvent of higher polarity to the first solvent to provide a precipitating solvent mixture in which the nanocrystals are insoluble, to provide precipitated nanocrystals; separating the precipitated nanocrystals from the precipitating solvent mixture; and redissolving the nanocrystals by adding a third solvent in which the nanocrystals are soluble to the precipitated nanocrystals.