Nanocomposite material and method of manufacturing the same

Abstract

A nanocomposite material and a method of manufacturing the same are disclosed. The nanocomposite material includes a plurality of nanoparticles coated with a metal oxide, and a matrix of the metal oxide immobilizing the nanoparticles that are dispersed therein. The nanocomposite material is manufactured such that macro- or micro-scale cracks are prevented or effectively prevented, light stability is enhanced over a light-emitting period, and light brightness is improved.

1 . A nanocomposite material, comprising:
 a plurality of quantum dots coated with a metal oxide; and   a matrix of the metal oxide immobilizing the quantum dots that are dispersed therein.   
     
     
         2 . The nanocomposite material of  claim 1 , wherein the matrix is formed from a network structure of the metal oxide. 
     
     
         3 . The nanocomposite material of  claim 1 , wherein the metal oxide is SiO2 or TiO2. 
     
     
         4 . The nanocomposite material of  claim 1 , wherein the plurality of quantum dots comprise a Group II-VI semiconductor compound selected from the group consisting of CdSe, CdTe, CdS, ZnSe, ZnTe, ZnS, InP, GaP, and GaInP 2 . 
     
     
         5 . The nanocomposite material of  claim 1 , wherein the plurality of quantum dots comprise metal particles selected from the group consisting of Au, Ag, Fe, and Co, or an oxide particle of the selected metal. 
     
     
         6 . The nanocomposite material of  claim 1 , wherein the metal oxide used to coat the quantum dots is substantially the same as the metal oxide used in the matrix.