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Production of self-aligned metal nanocolumns embedded in an oxide matrix film

AuthorsMargueritat, J. ; Gonzalo de los Reyes, José; Afonso, Carmen N. ; Ortiz, M. Isabel; Ballesteros Pérez, Carmen Inés
Keywords[PACS] Nanocrystalline materials
[PACS] Self-assembly
[PACS] Pulsed laser ablation deposition
[PACS] Structure of nanoscale materials
Issue Date28-Feb-2006
PublisherAmerican Institute of Physics
CitationApplied Physics Letters, 88 (9) : 093107 (2006)
AbstractSelf-aligned silver nanocolumns embedded in amorphous Al₂O₃ matrix are produced by alternate pulsed laser deposition at room temperature in a single step process. The morphology and the spatial distribution have been investigated by standard, high resolution, and scanning transmission electron microscopy. Polycrystalline nanocolumns having diameters close to 3 nm and heights up to 7 nm are all oriented perpendicular to the substrate surface. The self-alignment of the nanocolumns is the consequence of the deposition of consecutive layers of Ag nanoparticles using the first layer as template for the ordered growth of the nanocolumns. Control over the density, diameter and height of the nanocolumns is achievable by tailoring the deposition sequence.
Description3 pags. ; 4 figs.
Publisher version (URL)http://dx.doi.org/10.1063/1.2180877
Appears in Collections:(CFMAC-IO) Artículos
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