Ge-doped silica nanoparticles: production and characterisation

Fabrizio Messina, Diego Di Francesca, Simonpietro Agnello, Antonino Alessi, Marco Cannas, Gianpiero Buscarino, Martin-Samos, Girard, D.Di Francesca, Boukenter, Ouerdane, Reghioua, D.Di Francesca, Fanetti, Valant, Alessi, Richard

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Silica nanoparticles were produced from germanosilicate glasses by KrF laser irradiation. The samples were investigated by cathodoluminescence and scanning electron microscopy, providing the presence of nanoparticles with size from tens up to hundreds of nanometers. The emission of the Germanium lone pair center is preserved in the nanoparticles and atomic force microscopy revealed the presence of no spherical particles with a size smaller than ~4 nm. The absorption coefficient enhancement induced by Ge doping is reputed fundamental to facilitate the nanoparticles production. This procedure can be applied to other co-doped silica materials to tune the nanoparticles features.
Original languageEnglish
Pages (from-to)2213-2220
Number of pages8
JournalOptical Materials Express
Publication statusPublished - 2016

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials


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