Direct Atomic Scale Imaging of III-V Nanowire Surfaces.

Summary, in English

We have succeeded in direct atomic scale imaging of the exterior surfaces of III-V nanowires by scanning tunneling microscopy (STM). By using atomic hydrogen, we expose the crystalline surfaces of InAs nanowires with regular InP segments in vacuum while retaining the wire morphology. We show images with atomic resolution of the two major types of InAs wurtzite nanowire surface facets and scanning tunneling spectroscopy (STS) data. Ab initio calculations of the lowest energy surface structures and simulated STM images, agree very well with experiments.

• Author: Emelie Hilner; Ulf Håkanson; Linus Fröberg; Martin Karlsson; Peter Kratzer; Edvin Lundgren; Lars Samuelson; Anders Mikkelsen
• Department/s: Synchrotron Radiation Research; Solid State Physics; Department of Physics
• Publishing year: 2008
• Language: English
• Pages: 3978-3982
• Publication/Series: Nano Letters
• Volume: 8
• Issue: 11
• Links: http://dx.doi.org/10.1021/nl802500d
• Document type: Journal article
• Publisher: The American Chemical Society (ACS)
• Topic: Nano Technology
• Status: Published
• ISBN/ISSN/Other: ISSN: 1530-6992