A simple method for Hg Te / Cd S / Zn S multi-shell quantum dots( QDs) synthesizing was developed. Firstly,Hg Te core QDs were synthesized in aqueous solution with 1-thioglycerol as the stabilizer. Then,Cd S and Zn S shells were grown on the surface of Hg Te core by epitaxial growth method. The resultant Hg Te / Cd S / Zn S multi-shell QDs have stable near-infrared light-emitting property. This synthetic method contains only three steps with the advantages of simple operation and low cost. The experimental ...