A facile chemical route to semiconductor metal sulfide nanocrystal superlattices.
We report a facile chemical route for the synthesis of monodisperse nanocrystals of various metal sulfides (PbS, Cu(2)S, and Ag(2)S) 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.
Liu
Zhaoping
Z
Structure Research Laboratory and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
Liang
Jianbo
J
Xu
Dan
D
Lu
Jun
J
Qian
Yitai
Y