Engineering the electronic structure of surface dangling bond nanowires of different size and dimensionality

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 tha...

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Bibliographic Details
Published in:Nanotechnology 2013-07, Vol.24 (27), p.275202-1-7
Main Authors: Naydenov, Borislav, Boland, John J
Format: Article
Language:English
Subjects:
Bonding
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Density
Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic structure of nanoscale materials : clusters, nanoparticles, nanotubes, and nanocrystals
Electronics
Exact sciences and technology
Materials science
Microscopes
Nanocrystalline materials
Nanoscale materials and structures: fabrication and characterization
Nanowires
Physics
Quantum wires
Scanning
Semiconductors
Wire
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Summary: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.
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/24/27/275202