Abstract:
The invention discloses a blue quantum dot composite particle, a photoelectric element and a photoelectric device. The blue quantum dot composite particle comprises a core and a shell that covers the core, wherein the core is a blue quantum dot, the shell is formed of a polymer, and the surface of the shell is chemically modified with gold nano-granules. The fluorescence efficiency of the blue quantum dot composite particle according to the invention is very high.
Abstract:
The invention discloses a blue quantum dot composite particle and a method for preparing the same, a photoelectric element and a photoelectric device. The blue quantum dot composite particle comprises a core and a shell that covers the core, wherein the core is a blue quantum dot, the shell is formed of a polymer, and the surface of the shell is chemically modified with gold nano-granules. The method for preparing the blue quantum dot composite particle comprises: coating a polymer on the surface of a blue quantum dot via seed emulsion polymerization; modifying the polymer via hydrolysis so as to make the surface thereof have a carboxyl functional group; and combining a gold nano-granule having an amino functional group on its surface with a blue quantum dot having a carboxyl functional group on its surface via chemical coupling, and obtaining a blue quantum dot composite particle. The fluorescence efficiency of the blue quantum dot composite particle according to the invention is very high.