235 articles – 3602 Notices  [english version]
HAL : in2p3-00169560, version 1

Fiche détaillée  Récupérer au format
The European Physical Journal D 43 (2007) 291-294
Formation of argentic clusters and small Ag nanoparticles in soda-lime silicate glass
M. Dubiel, R. Schneider, H. Hofmeister, K.-D. Schicke, J.C. Pivin1

The formation of argentic clusters and very small Ag nanoparticles of 0.5 to 2 nm size in commercial soda-lime glass silver-doped by Ag/Na ion exchange in a mixed nitrate melt has been studied by electron microscopy and EXAFS. Particles formation was induced already during the ion exchange procedure, or by subsequent ion irradiation with 1.5 MeV He+ or 3 MeV Au+. The presence of nanoparticles was also macroscopically revealed by their surface plasmon resonance. The structural characterization indicates that specific configurations of silver oxide-like structures, so-called argentic clusters, are involved in the initial stage of nanoparticles formation.
1 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Physique/Matière Condensée/Science des matériaux