Structure-property relations in Au55 cluster layers studied by temperature-dependent impedance measurements

Chemphyschem. 2001 May 18;2(5):321-5. doi: 10.1002/1439-7641(20010518)2:5<321::AID-CPHC321>3.0.CO;2-4.

Abstract

Thin films of ligand-stabilized gold clusters, prepared from solution, exhibit quasi one-dimensional conduction behavior due to "easy paths" between well-organized grains. The stepwise construction of a defined number of layers succeeds with dithiols as linkers between clusters-the picture shows two layers so linked, with the outermost layer retaining its ligand coat. The current-voltage behavior shows linearity even at low temperatures, to indicate well-ordered structures.