GaAs Core/SrTiO3 Shell Nanowires Grown by Molecular Beam Epitaxy
| Autor: | Nicolas Chauvin, Jose Penuelas, Nicholas Blanchard, Fausto Sirotti, Philippe Regreny, Geneviève Grenet, Jeanne Becdelievre, Claude Botella, Xin Guan, Romain Bachelet, Guillaume Saint-Girons, Michel Gendry, Benjamin Meunier, X. Jaurand, A. Benali, Mathieu G. Silly |
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| Přispěvatelé: | INL - Hétéroepitaxie et Nanostructures (INL - H&N), Institut des Nanotechnologies de Lyon (INL), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre Technologique des Microstructures (CTµ), Université de Lyon-Université de Lyon, Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), INL - Spectroscopies et Nanomatériaux (INL - S&N), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL) |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Scanning electron microscope Nanowire Bioengineering Nanotechnology 02 engineering and technology Epitaxy 01 natural sciences X-ray photoelectron spectroscopy 0103 physical sciences General Materials Science Vapor–liquid–solid method ComputingMilieux_MISCELLANEOUS 010302 applied physics business.industry Mechanical Engineering General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electron diffraction Transmission electron microscopy [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Optoelectronics 0210 nano-technology business Molecular beam epitaxy |
| Zdroj: | Nano Letters Nano Letters, American Chemical Society, 2016, 16 (4), pp.2393-2399. ⟨10.1021/acs.nanolett.5b05182⟩ |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/acs.nanolett.5b05182 |
| Popis: | We have studied the growth of a SrTiO3 shell on self-catalyzed GaAs nanowires grown by vapor-liquid-solid assisted molecular beam epitaxy on Si(111) substrates. To control the growth of the SrTiO3 shell, the GaAs nanowires were protected using an arsenic capping/decapping procedure in order to prevent uncontrolled oxidation and/or contamination of the nanowire facets. Reflection high energy electron diffraction, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy were performed to determine the structural, chemical, and morphological properties of the heterostructured nanowires. Using adapted oxide growth conditions, it is shown that most of the perovskite structure SrTiO3 shell appears to be oriented with respect to the GaAs lattice. These results are promising for achieving one-dimensional epitaxial semiconductor core/functional oxide shell nanostructures. |
| Databáze: | OpenAIRE |
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