This is about CdSe/ZnS semiconductor.

Angell, James Joshua MS Thesis (2011) presented to The Department of Materials Engineering, California Polytechnic State Uinverstiy. (Google search the thesis title SYNTHESIS AND CHARACTERIZATION OF

CdSe-ZnS CORE-SHELL QUANTUM DOTS FOR

INCREASED QUANTUM YIELD)

Dear Saravanan,

Thanks for the link, however this thesis regards semiconductor core shell systems, and I'm interested in semiconductor metal systems.

Best,

Yonatan

W. Zhou, W. Chen, J. Nai, P. G. Yin, C. Chen and L. Guo, Adv. Funct.

Mater., 2010, 20, 3678.

Here's a recent paper on making Si-gold Core-shell particles that may help you: http://pubs.rsc.org/en/content/articlelanding/2013/nr/c3nr05960j#!divAbstract

Using this method they coated Si quantum dots with gold nanoparticles to make semiconductor-metal core-shell particles.

Thanks Galena, I was looking for something exactly like this!

Thanks as well to all the others who have answered.