Patent ID: 9530978
Filing Date: 2016-12-27
CPC Classification: B82Y,C09K,H01L,H05B,Y10S

Claim Text:
1. A hollow white composite quantum dot preparation method, comprising: dissolving silicon dioxide nano particles to obtain a seed solution; mixing and emulsifying unicolor quantum dots of different colors with a monomer, an initiator, a surfactant and a solvent, respectively, to obtain corresponding unicolor quantum dot emulsions; dropping the individual unicolor quantum dot emulsions in the seed solution in sequence, such that the surfaces of the silicon dioxide nano particles are coated with the unicolor quantum dots in the individual unicolor quantum dot emulsions in sequence according to the dropping order so as to obtain white composite quantum dots; and placing the white composite quantum dots in an acid solution, removing the silicon dioxide nano particles in the white composite quantum dots and obtaining hollow white composite quantum dots.