| Title | Morphology and microstructure of core-shell GaAs/GaxAl1-xAs nanowires investigated by He-ion microscopy and X-ray reciprocal space mapping |
|---|---|
| Publication Type | Presentazione a Congresso |
| Year of Publication | 2014 |
| Authors | Re, Marilena, Di Benedetto Francesca, Pesce Emanuela, Miccoli I., Prete P., Lovergine N., and Tapfer Leander |
| Conference Name | Materials Research Society Symposium Proceedings |
| Publisher | Materials Research Society |
| Keywords | Aluminum, Crystallographic orientations, Gallium alloys, Gallium arsenide, Helium ion microscopies, Ion microscopes, Ions, Mapping, Metal-organic vapor phase epitaxy, Metallorganic vapor phase epitaxy, Micro-structural properties, Morphological information, Morphology, Nano scale, Nanowires, Reciprocal space mapping, Semiconducting gallium, X ray diffraction, X-ray reciprocal space mapping |
| Abstract | In this work we present new results on the morphological and microstructural properties of GaAs-AlxGa1-xAs (x≈0.24) core-shell nanowires (NWs) epitaxially grown on (111)B-GaAs substrates by Au-catalyst assisted metalorganic vapor phase epitaxy (MOVPE). Optimized growth conditions allowed us to fabricate highly-dense arrays of vertically-aligned (i.e., along the <111> crystallographic orientation) NWs. The NW arrays were investigated by Helium Ion microscopy (HeIM) and X-ray double- and triple-axis measurements and reciprocal space mapping (RSM). We demonstrate that these techniques can be employed in order to correlate some intrinsically local morphological information with statistically relevant (i.e. averaged over millions-to-billions of NWs) data on the NW structural properties. Copyright © 2014 Materials Research Society. |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84926320423&doi=10.1557%2fopl.2014.747&partnerID=40&md5=fc1756bb08f33c8d7eaeb501255cebf8 |
| DOI | 10.1557/opl.2014.747 |
| Citation Key | Re2014 |
