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H2-induced copper and silver nanoparticle ...
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Document type :
Article dans une revue scientifique
DOI :
10.1186/1556-276X-7-487
Title :
H2-induced copper and silver nanoparticle precipitation inside sol-gel silica optical fiber preforms
Author(s) :
Chahadih, A. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
El Hamzaoui, Hicham [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Cristini-Robbe, Odile [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Bigot, Laurent [Auteur] refId
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Bernard, Remy [Auteur] refId
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Kinowski, Christophe [Auteur] refId
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Bouazaoui, Mohamed [Auteur] refId
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
CAPOEN, Bruno [Auteur] refId
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Journal title :
Nanoscale Research Letters
Pages :
487
Publisher :
SpringerOpen
Publication date :
2012-08-31
ISSN :
1931-7573
Keyword(s) :
copper nanoparticles
silver nanoparticles
surface plasmon resonance
sol-gel process
dense silica preforms
HAL domain(s) :
Physique [physics]/Physique [physics]/Optique [physics.optics]
English abstract : [en]
Ionic copper- or silver-doped dense silica rods have been prepared by sintering sol-gel porous silica xerogels doped with ionic precursors. The precipitation of Cu or Ag nanoparticles was achieved by heat treatment under ...
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Ionic copper- or silver-doped dense silica rods have been prepared by sintering sol-gel porous silica xerogels doped with ionic precursors. The precipitation of Cu or Ag nanoparticles was achieved by heat treatment under hydrogen followed by annealing under air atmosphere. The surface plasmon resonance bands of copper and silver nanoparticles have been clearly observed in the absorption spectra. The spectral positions of these bands were found to depend slightly on the particle size, which could be tuned by varying the annealing conditions. Hence, transmission electron microscopy showed the formation of spherical copper nanoparticles with diameters in the range of 3.3 to 5.6 nm. On the other hand, in the case of silver, both spherical nanoparticles with diameters in the range of 3 to 6 nm and nano-rods were obtained.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
ANR Project :
Photo-croissance Organisée de nano-objets MEtalliques et Semi-Conducteurs destinés aux applications Optiques
Collections :
  • Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523
Source :
Harvested from HAL
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