Deposition of size-selected metal clusters on inert graphite surface with atomic anchors
East Tokyo Laboratory, Genesis Research Institute, Inc., 717-86 Futamata, Ichikawa, Chiba, 272-0001, Japan
2 Cluster Research Laboratory, Toyota Technological Institute: in East Tokyo Laboratory, Genesis Research Institute, Inc., 717-86 Futamata, Ichikawa, Chiba, 272-0001, Japan
Corresponding author: a email@example.com
Published online: 13 February 2009
A novel method was developed to fix size-selected metal clusters firmly on an inert surface; atomic anchors are fixed on the surface by injecting atomic ions on it and then by soft-landing metal clusters which are pinned to the anchors. In the present report, we demonstrated a utility of this method by using a system of W9+ to W+ anchors. The atomic anchors and the clusters thus prepared on a graphite (0001) surface were observed by means of scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). It was found that mono-atomically arranged tungsten clusters are firmly fixed on the surface as W9+1.
PACS: 79.20.Rf – Atomic, molecular, and ion beam impact and interactions with surfaces / 68.37.Ef – Scanning tunneling microscopy / 61.46.Bc – Structure of clusters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2009