Au-free epitaxial growth of InAs nanowires.

Mandl, Bernhard; Stangl, Julian; Mårtensson, Thomas; Mikkelsen, Anders; Eriksson, Jessica; Karlsson, Lisa S; Bauer, G Uuml Nther; Samuelson, Lars et al. · Nano Lett · 2006

basic_science · Level V

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Abstract

III-V nanowires have been fabricated by metal-organic vapor-phase epitaxy without using Au or other metal particles as a catalyst. Instead, prior to growth, a thin SiOx layer is deposited on the substrates. Wires form on various III-V substrates as well as on Si. They are nontapered in thickness and exhibit a hexagonal cross-section. From high-resolution X-ray diffraction, the epitaxial relation between wires and substrates is demonstrated and their crystal structure is determined.

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