Patent ID: 9559322
Date: 2017-01-31
CPC Classifications: C09K,H01L

Claim:
1. A method of manufacturing a quantum dot, the method comprising: forming a core utilizing at least one cation precursor and at least one anion precursor; reacting the core with a mixture comprising a shell forming anion precursor solution without an additional cation precursor for more than one hour to form a first shell surrounding the core, the anion of the shell forming anion precursor being one or more elements in Group XVI; washing a nanoparticle comprising the core and the first shell; reacting a second shell forming precursor with the core and the first shell to form a second shell enclosing the first shell; and reacting a ligand forming precursor with the core and the first and second shells to form a ligand on a surface of the second shell, the ligand forming precursor being oleic acid or a mixture of oleic acid and trialkylphosphine.