Controlled deposition of size-selected silver nanoclusters
Variable-temperature scanning tunneling microscopy was used to study the effect of kinetic cluster energy and rare-gas buffer layers on the deposition process of size-selected silver nanoclusters on a platinum(111) surface. Clusters with impact energies of <or=1 electron volt per atom could be landed nondestructively on the bare substrate, whereas at higher kinetic energies fragmentation and substrate damage were observed. Clusters with elevated impact energy could be soft-landed via an argon buffer layer on the platinum substrate, which efficiently dissipated the kinetic energy. Nondestructive cluster deposition represents a promising method to produce monodispersed nanostructures at surfaces.
Keywords: ion surface impact; ionised cluster beam deposition; metal clusters; nanostructured materials; scanning tunnelling microscopy; silver ; surface structure deposition ; size selected silver nanoclusters; variable temperature scanning tunneling microscopy; kinetic cluster energy; rare gas buffer layers; Pt111 surface; impact energies; bare substrate; fragmentation ; substrate damage; impact energy; soft landing; argon buffer layer; kinetic energy; nondestructive cluster deposition; monodispersed nanostructures; Ag ; Pt A6146 (Solid clusters including fullerenes and nanoparticles); A6855 (Thin film growth structure and epitaxy); A7920N (Atom molecule and ion surface impact); A6820 (Solid surface structure); A61; A68; A79; A6
Record created on 2006-07-25, modified on 2016-08-08