Patent ID: 7927515
Filing Date: 2011-04-19
Classification: C09K,H01L

Abstract:
1. A method for preparing nanocrystal-metal oxide-polymer composites, the method comprising: reacting a surfactant with nanocrystals to modify the surfaces of the nanocrystals, the surfactant having at least one reactive group selected from the group consisting of —SR mixing the surface-modified nanocrystals, a metal oxide precursor, a dispersant, another surfactant, a solvent and water, and drying the mixture to obtain nanocrystal-metal oxide composites comprising the nanocrystals within a metal oxide matrix; preparing a monomer capable of covalently bonding to organic reactive groups of the nanocrystal-metal oxide composites; and polymerizing the nanocrystal-metal oxide composites and the monomer to prepare a polymer from the monomer and form covalent bonds between the polymer and the organic reactive groups of the metal oxide matrix.