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Published online by Cambridge University Press: 21 March 2011
The deposition chemistry of hexanethiol-stabilized gold nanoclusters self-assembled on Au and SiO2 surfaces by reaction with a series of α,ω-alkanedithiols is studied using X-ray photoelectron spectroscopy and electrical measurements. Testing of micron-scale devices shows that high conductivity is achieved only for a narrow range of dithiols and with a sharp efficiency threshold. Nanoscale devices exhibit similar behavior though with much evidence of “granularity” in the deposition.