CdSe quantum dot formation induced by amorphous Se
| Autor: | I. C. Robin, G. Van Tendeloo, Serge Tatarenko, Régis André, Thomas Aichele, Catherine Bougerol |
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| Přispěvatelé: | Nanophysique et Semiconducteurs (NPSC), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Electron Microscopy for Material Resaerch (EMAT) (EMAT), University of Antwerp (UA) |
| Rok vydání: | 2007 |
| Předmět: |
[PHYS]Physics [physics]
010302 applied physics Materials science Condensed matter physics Physics 02 engineering and technology Surfaces and Interfaces Surface finish 021001 nanoscience & nanotechnology Condensed Matter Physics Epitaxy 01 natural sciences Surfaces Coatings and Films Amorphous solid Crystal Chemistry Crystallography Transmission electron microscopy Quantum dot 0103 physical sciences Materials Chemistry 0210 nano-technology Anisotropy ComputingMilieux_MISCELLANEOUS Surface reconstruction |
| Zdroj: | Surface Science Surface Science, Elsevier, 2007, 601 (13), pp.2664-2666. ⟨10.1016/j.susc.2006.12.001⟩ Surface science: a journal devoted to the physics and chemistry of interfaces |
| ISSN: | 0039-6028 |
| DOI: | 10.1016/j.susc.2006.12.001 |
| Popis: | The mechanism allowing the transition from a two-dimensional strained layer of CdSe on ZnSe to self-assembled islands induced by the use of amorphous selenium is still not fully understood. For a better understanding, atomic force microscopy and transmission electron microscopy studies were performed on CdSe films with a thickness close to that for quantum dot formation. Below this thickness, the sample surface results in undulations along the [110] crystal direction, while few quantum dots are situated in the wave valleys. Plan view transmission electron microscopy studies reveal a strong anisotropy of the islands and show that the Se desorption conditions are crucial. (C) 2006 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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