Abstract
Abstract Silver oligomers prepared by radiolysis in aqueous solution in the presence of polyacrylate and absorbing at ≈ 290 nm have been imaged by STM in air after being deposited on a HOPG surface. Clear images with atomic resolution are observed, showing flat clusters of 0.7 nm. Each cluster contains seven (or possibly eight) atoms corresponding to the stoichiometry (Ag4+m)m+, m = 3 (or 4), for the clusters in aqueous solution. No interference due to the polyanion (present in the solution as a stabilizing agent) is found for adsorbate densities.
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