Room-temperature synthesis of nanocrystalline Ag_2S and its nanocomposites with gold

摘要

This manuscript demonstrates a room-temperature synthesis for Ag_2S nanocrystals and their nanocompsites with Au and the Au could be deposited only at a single site on each Ag_2S seed nanocrystal, where in contrast, Ag_2S could grow homogeneously on Au seed nanocrystals, resulting in core-shell Au@Ag_2S nanoparticles, which still possessed the optical properties of Au nanocrystals; this facile synthesis could be employed towards fabricating a variety of nanocomposites with interesting structures and tailored functionalities.