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Open Access Nano Express

Tunable self-assembly of one-dimensional nanostructures with orthogonal directions

Milan P Allan, Simon Berner, Martina Corso, Thomas Greber and Jürg Osterwalder*

Author Affiliations

Physik-Institut, Universität Zürich, Winterthurerstrasse 190, 8057, Zurich, Switzerland

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Nanoscale Research Letters 2007, 2:94-99  doi:10.1007/s11671-006-9036-2


The electronic version of this article is the complete one and can be found online at:


Received:27 October 2006
Accepted:19 December 2006
Published:26 January 2007

© 2007 to the authors

Abstract

High-temperature exposure of a Mo(110) surface to borazine (HBNH)3leads to the formation of two distinctly different self-assembling nanostructures. Depending on the substrate temperature during preparation, either well-aligned, ultra-thin boron nanowires or a single-layer stripe structure of hexagonal boron nitride forms. Both structures show one-dimensional (1D) characteristics, but in directions perpendicular to each other. It is also possible to grow the two phases in coexistence. The relative weights are controlled by the sample temperature during preparation.

Keywords:
Hexagonal boron nitride (h-BN); Boron; One-dimensional nanostructures; Nanowire; Photoemission; Scanning tunneling microscopy (STM); Low energy electron diffraction (LEED)

Nano Express

[1-26]

Acknowledgment

The authors would like to thank Martin Klöckner and Erwin Fischer (Eidgenössische Technische Hochschule Zürich) for technical support, Hermann Sachdev (Universität des Saarlandes) for the production of borazine, and Martin Morscher, Matthias Hengsberger, Anna Tamai and Jörg Kröger (Christian-Albrechts-Universität zu Kiel) for fruitful discussions. This work was supported by the Swiss National Science Foundation (SNF) and by the European Union’s Sixth Framework Programme via the NanoMesh project (NMP4-CT-2004–013817).

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