title: Engineering the electronic structure of surface dangling bond nanowires of different size and dimensionality.
abstract: We demonstrate how the local density of electronic states evolves as the size and dimensionality of surface dangling bond nanowires are modified. These wires were fabricated using the probe of a scanning tunneling microscope on a hydrogen passivated n-type Si(100)-(2 × 1) surface. We demonstrate that by varying the number and arrangement of dangling bonds on the surface it is possible to arbitrarily engineer the electronic characteristic of a surface nanowire from that of a semiconductor with a controllable band gap to that of a metal.
authors.affiliation: School of Chemistry and Center for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College, Dublin 2, Ireland.
authors.forename: Borislav
authors.initials: B
authors.lastname: Naydenov
authors.forename: John J
authors.initials: JJ
authors.lastname: Boland