writer：Zhaoping Liu, Jianbo Liang, Dan Xu, Yitai Qian*
keywords：monodisperse, dodecanethiol, PbS, Cu2S, Ag2S
source：期刊
specific source：Chem. Commun. 2004, 2724-2725.
Issue time：2004年

We report a facile chemical route for the synthesis of monodisperse nanocrystals of various metal sulfides (PbS, Cu₂S, and Ag₂S) and their assemblies into nanocrystal superlattices (NCSs); the sulfides NCSs were precipitated by adding ethanol to nanocrystal colloids, which were obtained directly by a reaction between metal thiolate and thioacetamide in a pure dodecanethiol solvent.