Hi-ho silver away!

Sub-microscopic nuggets of silver composed of just a few hundred atoms doped with semiconductor atoms have been synthesized by Dieter Fenske and his colleagues at the University of Karlsruhe. The nanoclusters contain chalcogen dopants (sulfur, selenium, and tellurium) and may one day be built into arrays for molecular electronics applications. The team has now used X-ray crystallography to characterize in detail the complex structures of these materials. The most silver-rich compound they produced consists of about 490 silver atoms and 188 sulfur atoms, as well as 114 organosulfur ligands.