6533b7d1fe1ef96bd125c373
RESEARCH PRODUCT
Ge-doped silica nanoparticles: production and characterisation
Mattia FanettiAntonino AlessiDiego Di FrancescaImène ReghiouaSylvain GirardAziz BoukenterSimonpietro AgnelloLayla Martin-samosMarco CannasNicolas RichardGianpiero BuscarinoFabrizio MessinaYoucef OuerdaneMatjaz Valantsubject
Materials scienceLaser ablationScanning electron microscopePhysics::Medical PhysicsDopingSettore FIS/01 - Fisica SperimentalePhysics::Opticschemistry.chemical_elementNanoparticleGermaniumCathodoluminescenceNanotechnology02 engineering and technologyChemical vapor deposition010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical sciencesElectronic Optical and Magnetic MaterialsNanomaterialschemistryChemical engineeringnanoparticles point defects doped silica0210 nano-technologydescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-06-09 |